Hi Venkat Sir, You are the best !!! Because of your tutorial not only me but so many other people also got the job....You do not know how much people likes you.. you are a real hero for us...
Hi Sir this is Subhash,I got the job in Cognizant as Consultant, That is all because of only you and your Great videos which supporting me every time.I learned a lot from you really i m speechless to express my felling for you. thanks a lot sir,
Hi Subhash, Wow....Congratulations. Very happy for you. I am honoured, when you say these videos helped you to get the job. Thank you very much for taking time to share the good news. Good luck and all the very best with your new role.
+kudvenkat Hi Venkat Its True!!! All your videos are creating a history .. even me got 2 offers after watching all your MVC /ANG Js/WCF / EF videos.What can i say except a THANKS !!! Keep going.. GOD Bless you Brother !!
I just finished the Entity Framework playlist, (actually watched it all twice) and I have to say WELL DONE! I've been avoiding EF/Linq and now I know that was ridiculous. My development has gotten 100x easier. Thanks for your contribution!
All of these videos were really, really good. I paid money for some LINQ videos and they were no where near this good or comprehensible. Thanks a million
Hello Venkat! Hope you are doing great! Just wanna let you know that you are a life saver. I have done software engineering in 2014 but due to some domestic problems it was very hard for me to get a job in a related field. It has been a lapse of 2 years and i havn't practice or done any job related to programming in result of which all my concepts related to programming eventually vanished. Last year and i was thinking that programming is almost over for me. I wanna let you know Sir, you are a humanity saver. I am following your tutorials for last three months, its great. I am very happy now, cause i can code. I am hopeful now that i can get a job. Please accept a very Big hug from this student. Thank you a million times.
Hi Venkat..I am at your channel about one year. I learned a lot from you, so so much. Every time mail pop up from you noticing that you uploaded video brings me smile. Words can not express what most of us feel you are doing this. Please continue. I will share all your videos everywhere.
really its so helpful for everyone those who are related to MVC field.. I need more tutorial like this i watch it so much when get time.. Please sir upload the tutorial like these.. thanks for giving right tutorial on youtube...
I am a DBA, using SQL Server and SSRS. However, I would like to learn more about C# and back-end programming. These videos are an invaluable resource. Thank you so much. :)
Thank you David. Very glad you are finding our courses useful. You can find all our free courses at the following link. th-cam.com/users/kudvenkatplaylists?sort=dd&view=1
Hi Venkat, You are doing an excellent job in sharing your knowledge. Many say donating food is great deed but I would say donating knowledge is better deed than the materialistic deeds
Now this is what they should teach in college. These videos are worth more than a degree. I also haven't had this much fun programming in a long time now that I understand so much more. Thank you for empowering us developers to become better programmers. I'm going to be testing out Entity Framework into my test MVC project today. I've been creating classes from scratch with nested classes (List), DataReaders and if logic to populate nested classes. I want to see if Entity Framework can solve this for me. Thanks again : )
Dear Mr. Venkat, I'm an avid follower of your tutorials. Recently, I have started learning Entity Framework (EF). While practicing the codes in my PC, I have encountered a problem. In your tutorial, I believe you were using Entity Framework version less than 6.0, and I am using version 6.0, which is why I am unable to use EntityDataSource control that you have mentioned in your tutorial. If I try to use the EntityDataSource control in EF 6, I get this error - This version of the Entity Data Source wizard is only compatible with EF 5.... (I have emailed you the screenshot). After a lot of googling, I have found out a solution as well. - First, if we are using EF 6, we should install the following via NuGet Package Console (in the following order): 1. Microsoft.AspNet.EntityDataSource 2. Microsoft.AspNet.DynamicData.EFProvider - Once the above is done, we need to manually, bind the data source using the following piece of code: 1. In WebForm1.aspx : 2. In WebForm1.aspx.cs, we will define the above 'DepartmentGrid_GetData' method : public IQueryable DepartmentsGrid_GetData() { EmployeeDBContext db = new EmployeeDBContext(); var query = db.Departments_EF; return query; } 3. Finally, I edited the data binding expression as per my class name : Eval("Employees_EF") [***Please NOTE that 'EntityFramework_WebApp' is the name I have given to my namespace, and 'Departments_EF' and 'Employees_EF' are the class names Entity Framework has generated according to the table names which I have used***] The whole point of explaining all these is to request you to add another video which would take into account the newer changes Microsoft has done, so that others (who might be using a newer version of EF) can be benefitted. Anyway, thanks a ton for all your tutorials. I really appreciate the efforts you have put in for all the developers and coders like me.
Just a heads up for anyone trying to follow this tutorial and running into the issue that the EntityDataSource control isn't compatible with Entity Framework version 6 and higher: Basically uninstall Entity Framework version 6 from the NuGet package manager (tools -> NuGet package manager -> manage NuGet packages for solution) and re-download Entity Framework but ensure in the versions drops down box you select version 5. You will now find the rest of the tutorial flows as expected. Note that if you're already half way through when you discovered this bug I would strongly recomment you just dump you solution and start again with version 5 of Entity Framework. Now as a further addendum, there's an updated EntityDataSource control available on NuGet package manager that supports Entity Framework version 6 but unfortunately this update version of the control doesn't support the nice UI to configure it in the webform design view. So for newbs like us trying to get to grips with what's going on I would recommend just downgrading your version of Entity Framework, perhaps look at how the UI has manipulated the EntityDataSource for Entity Framework v5 in the html markup after you have configured it and then that'll probably give you a good footing on how to manipulate the updated EntityDataSource control in the html markup.
Thank you so much sir ....you r awesome .....i have been following you since long.I am glad to have this another precious video series ...thanx for caring us ..May GOD bless you .
In Schema first approach, if T4 code generation is enabled for model no code would be generated in the Model.Designer.cs, in order to enable legacy code generation, change the value of the "Code Generation Strategy" designer property to "Legacy ObjectContext". This property is available in the Properties Window when the model is open in the designer by just right-clicking the background.
Hello Kudvenkat First of all I want to thank you for all your tutorials shared for us. They are very useful and clean to understand easily. I want to ask you that is there any tutorials you shared for entity framework but for window forms application. The one you shared is for web application as i see. I want to learn entity framework using forms application. thanks very much! Aydin, Istanbul.
At first, I would like to thank you so much for your efforts. As you know, EF 7 is in beta now, and there is only Code First approach. I wish if you have some time to record a video that explain the new advantages.
Can you please clarify what you meant by: "there is only Code First". Doesit mean that Code First will be the main strategy for development? Any references with regard to this issue.
Hello Venkat sir, Literally these videos are awsome, Thanks for your support, Please provide a tutorial on Entity framework Core explaining the differences to normal Entity Framework as world is moving towards .NET Core, and cross platform apps. Hope if you can provide tutorials on Azure soon, As the .net is getting as partial skill set with out Azure Skills. Thanks Once again sir.
Hello Hemakiran - Thank you very much for the feedback and for the great course suggestions. Entity framework Core is covered starting from Part 45 in our asp.net core tutorial. The following is the link for it. Hope you will find it useful. www.pragimtech.com/courses/asp-net-core-mvc-tutorial-for-beginners/ If you have time, can you please leave your rating and valuable feedback on the reviews tab. It really helps us. Thank you. Good luck and all the very best with everything you are doing.
thanks for the tutorials, I would like to ask what options do I have to add a new property to the model object and add a new column in the mapped table. Thank you
Hi Sir, Please answer me the interview question that was asked to me. Thanks in Advance. How to use multiple connection strings with entity framework and how to select the connection string on a fly? Thanks, Priya....
I really liked this video I was excited to see the later part with the departments on the left and employee details on the right but I use windows forms i guess it is not available. Is there any 3rd party tools grids Entity source adapaters that would make it work so easlily in Windows forms?
Hi Venkat, Nice step by step explanation of Schema First Approach. But i saw most of code is from GUI point not like by coding. Can you explain with out using GUI please.
Your videos are the best videos I'v ever watched. Thank you very much. But where can I find these power point files ? I want to download them all if you dont mind. thank you sir
hi venkat, thanks for the video . but you havn't shown the which type of project to choose primarily. asp.net web application or asp.net mvc4 application and there after what kind of template before adding ado.net entity framework. will you please help me in this case?
Hi Kudvenkat, I try doing this demo without installing Entity Framework for that demo project in Visual Studio 2010, and it still works fine; it supposes not to working because this demo is based on Entity Framework, isn't it? Please check and explain asap. Thank you.
Hello sir thank u so much for this wonderful tutorial... Sir, got an issue my EmployeeModel.Designer.cs has no code generated by automatically as well as i think because of this am not able to configure the data source as well .. pls help me out ..
Hi Venkat, I have one doubt in Entityframe work...that is "which situation we use the Code first,mode first,database first in project",can u clarified the question.
Hi Venkat When i have edited item template and inserted a gridview and put the expression Eval("Employees") in custom expression, I am getting a exception "System.Web.UI.WebControls.EntityDataSourceWrapper' does not contain a property with the name 'Employees'"
Hi Venkat, Im using VS-2013 with entity framework 6.0. While configuring data source, I did rebuild the solution and clicked on EmployeeDBContext, but I am still getting the error stating "The provider did not return a ProviderManifest instance". I am stuck here. Can you please clear this out?
Open the EDMX file in notepad and change the ProviderManifestToken attribute value to 2008 from 2012 Before: ProviderManifestToken="2012" After: ProviderManifestToken="2008" This will resolve the problem
Ivandro Ismael Open the EDMX file in notepad and change the ProviderManifestToken attribute value to 2008 from 2012 Before: ProviderManifestToken="2012" After: ProviderManifestToken="2008" This will resolve the problem
Not sure if anyone else has run into this but I've tried this about 5x and get the same results. Running VS.net 2015, and I believe the current version of NuGet Package Manager. I install the EntityFramework per this tutorial and in the NuGet Pckg Mgr it shows 6.1.0. I'm guessing that's because it's the most current version. I install that but when I hover over the EntityFramework reference in my project it shows 6.0.0. Any ideas what the problem is? Also, when I view the EmployeeModel.Designer.cs code, I do not see any c# code. It's all commented out code that starts with "// T4 code generation is enabled for model..." Any ideas why I am not getting any generated code? Bottom line is I'm looking forward to watching the rest of these videos. Very easy to follow and understand. And the accompanying web page is a bonus!! Thank you!!
Hi Sir, I have one question here. Why we use explicit transaction(BeginTransaction) in entity framework , when we can achieve the same with single Savechanges() ?
hi Venkat, I am using visual studio 2013 and i saw 1st video of your tutorial. I cant find the designer.cs file of entityframe as like yous.Can you explain how can i find all of these classes which you have show in this video.
This is great resource and I appreciate it. I was following this tutorial and also working with VS 2012. After creating the webform1 and wanted to select the Named Connection, I got an error that reads "unable to load the specified metadata resources". I also compiled the solution as you suggested but the error persisted. I checked the connectionstring in the web.config file but it looks OK. What am I missing here. Thanks
Hi Venkat, Just following the above video. I am able to retrieve Departments, but unable to link "Employee" in template column. I have ensured all keys are defined properly. I am keep getting following error after setting "include" with "employees" in entity data source. Any idea ? Im unable to proceed. "The result type of the query is neither an EntityType nor a CollectionType with an entity element type. An Include path can only be specified for a query with one of these result types. " thanks Sat
Hi: I do not get code in my EmployeeModelDesigner.cs Iam vs2012. I triedtogenerate but in vain. any suggestions? the message on the page is // T4 code generation is enabled for model 'C:\Project_ASP\eSchool\eSchool\EmployeeModel.edmx'. // To enable legacy code generation, change the value of the 'Code Generation Strategy' designer // property to 'Legacy ObjectContext'. This property is available in the Properties Window when the model // is open in the designer. // If no context and entity classes have been generated, it may be because you created an empty model but // have not yet chosen which version of Entity Framework to use. To generate a context class and entity // classes for your model, open the model in the designer, right-click on the designer surface, and // select 'Update Model from Database...', 'Generate Database from Model...', or 'Add Code Generation // Item...'. // T4 code generation is enabled for model 'C:\Project_ASP\eSchool\eSchool\EmployeeModel.edmx'. // To enable legacy code generation, change the value of the 'Code Generation Strategy' designer // property to 'Legacy ObjectContext'. This property is available in the Properties Window when the model // is open in the designer. // If no context and entity classes have been generated, it may be because you created an empty model but // have not yet chosen which version of Entity Framework to use. To generate a context class and entity // classes for your model, open the model in the designer, right-click on the designer surface, and // select 'Update Model from Database...', 'Generate Database from Model...', or 'Add Code Generation // Item...'.
Sir you have shown data binding with two tables if you have time please let us know how to bind 3 tables in the same way. Like countries,states,and cities
Hi Venkat Your videos are nice and easy to learn. But I request you create the same video with MVC instead of WebForms As we know that ASP.NET web forms IS DEAD
Sir, can you upload videos in tamil languages its useful for tamil medium students,from tamilnadu and your hopeful friend kodees. your any topics of the videos superbbb one its useful every IT fresher jobseekers. thanking you
Would it be possible to get an addition to this series which would discuss subject "What has happened over the last two years"? So things like new version syntax (if any), easier ways to do things, possible problems you might run into while trying these examples with newer versions like EF7 or Visual Studio 2015 and all the other things you find relevant that might have happened. Or, suggest a video / other source if you feel one is done already. Oh and thanks for a good video series. These are very easy to understand.
+Arto Kilponen As a good example, how about this Part 1 video at 10:55, where we have EntityDataSource and the entire thing falls apart the second I press "Configure Data Source..." with message "This version of the Entity Data Source wizard is only compatible with Entity Framework 5. If you're not using Entity Framework 5 you can configure the control by editing the markup on the page. The page editor has IntelliSense support for ASP.NET controls. If you're using Entity Framework 6 you should be using the EF6-compatible version of the Entity Data Source control, avaiable as the Microsoft.AspNet.EntityDataSource package in NuGet." So, sure, I understand, type some text to the markup - but what and where?
One pitfall: Web Form might want you to use EF5, not EF6. And if you already took EF6, then you need to downgrade using Nuget packet manager and also _manually_ change the .edmx file (open it as XML, not as designer) and change in "ProviderManifestToken="2012"" that 2012 to 2008. This worked for me with Visual Studio 2017. Also, if you run into problems with Chrome, try IE. Especially if you are here just to see that you can get things to work too, not actually developing some code directly to production. And adding that new EF-item is not the same than in the video, but it was close enough (EF Designer from database). If someone here knows how I get this to work work with EF6 let alone EF7, please let me know. As said, now it "crashes" to 11:11
When I connect the database the EmployeeModel.emdx gets added but nothing gets populated in the Designer.cs. A lot of other files gets created too. The designer simply shows few commented lines of code. And later on when I configure the data source it always the metadata error, whether I rebuild or clean the whole solution, whatever. I am using VS2013. Please help me with this issue.
Hi Venkat, My name is Mayank...I have one question is this required to match the SQl Server version and Visual studio Version for entity framework because I am getting one error when I am trying to do schema approach that "Could not load file assembly sql server version is 12" and I am using Visual studio15 and SQL server12.
Hi venkat.The tutorial is interesting unfortunately I did not manage to configure the object context due to the following error. ("This version of the Entity Data Source wizard is only compatible with Entity Framework 5. If you're not using Entity Framework 5 you can configure the control by editing the markup on the page. The page editor has IntelliSense support for ASP.NET controls. If you're using Identity Framework 6 you shold bo using the EF6-compatible version of the Entity Data Source control, avaiable as the Microsoft.AspNet.EntityDataSource package in NuGet".) I downgraded the entity framework through the nuget but nothing worked. I am using visual studio community
+Ashish Singh Maybe that's not actual anymore, but you can solve this in two ways: when adding ADO.NET Entity Data Model, choose "Entity Framework 5.x". And if you need to use EF6, then You need to add www.nuget.org/packages/Microsoft.AspNet.EntityDataSource/ to your project and changing namespace in EntityDataSource from "asp:" to "ef:". That's because EDS doesn't support EF6.
Hi sir, I tried the same example exactly following the steps as told in the video,but when I run the solution in browser I couldnt see any response.I just see a blank page.I have checked for this error on google for solution, like I tried running this command in cmd: %windir%\Microsoft.NET\Framework64\v4.0.30319\aspnet_regiis.exe -ir and also tried deleting temp files. But none of them worked for me. Please provide me with a solution sir!!
Hi Venkat, I am using VS2012 with ef 6 and always getting the metadata error even after building solution and even after changing ProviderManifestToken="2012" to ProviderManifestToken="2008". I have tried to google the issue many times but still unable to resolve it. Any suggestions please? As I am not able to proceed with the tutorial. Thanks KJ
Hi Sir I am facing some problem when ever I practice your tutorials actually I am newly studied the entity framework please solve the problem . I had taken same thing what ever you had taken in the first example I am facing the Problem here Before building the solution what ever error you told same error came .After building also the this error came The provider Did n't Return a ProviderManifest instance
Hi Venkat, Im using VS-2013 with entity framework 6.0. While configuring data source, I did rebuild the solution and clicked on EmployeeDBContext, but I am still getting the error stating "The provider did not return a ProviderManifest instance". I am stuck here. Can you please clear this out? I Modify ProviderManifestToken attribute 2012 to 2008 but its still showing error
Hi Venkat Sir,
You are the best !!! Because of your tutorial not only me but so many other people also got the job....You do not know how much people likes you.. you are a real hero for us...
Hi Sir this is Subhash,I got the job in Cognizant as Consultant, That is all because of only you and your Great videos which supporting me every time.I learned a lot from you really i m speechless to express my felling for you.
thanks a lot sir,
Hi Subhash, Wow....Congratulations. Very happy for you. I am honoured, when you say these videos helped you to get the job. Thank you very much for taking time to share the good news.
Good luck and all the very best with your new role.
+kudvenkat Hi Venkat Its True!!! All your videos are creating a history .. even me got 2 offers after watching all your MVC /ANG Js/WCF / EF videos.What can i say except a THANKS !!! Keep going.. GOD Bless you Brother !!
you can donate him some amount of your first salary ...
yes please do donate him, he deserves it
I just finished the Entity Framework playlist, (actually watched it all twice) and I have to say WELL DONE! I've been avoiding EF/Linq and now I know that was ridiculous. My development has gotten 100x easier. Thanks for your contribution!
All of these videos were really, really good. I paid money for some LINQ videos and they were no where near this good or comprehensible. Thanks a million
Hello Venkat! Hope you are doing great! Just wanna let you know that you are a life saver. I have done software engineering in 2014 but due to some domestic problems it was very hard for me to get a job in a related field. It has been a lapse of 2 years and i havn't practice or done any job related to programming in result of which all my concepts related to programming eventually vanished. Last year and i was thinking that programming is almost over for me.
I wanna let you know Sir, you are a humanity saver. I am following your tutorials for last three months, its great. I am very happy now, cause i can code. I am hopeful now that i can get a job. Please accept a very Big hug from this student. Thank you a million times.
You will get job my friend...mine also same scenerio...jst 3 months in his videos and now i m wrking in reputed company......
don't forget to donate mr.kudevencat please..
Hi Venkat..I am at your channel about one year. I learned a lot from you, so so much. Every time mail pop up from you noticing that you uploaded video brings me smile. Words can not express what most of us feel you are doing this. Please continue. I will share all your videos everywhere.
You r angle sir, i have no words to appreciate your work.
Thank you very very very very very very very very much
really its so helpful for everyone those who are related to MVC field.. I need more tutorial like this i watch it so much when get time.. Please sir upload the tutorial like these.. thanks for giving right tutorial on youtube...
thanks to reply
Happy Teacher's day Venkat Sir! You are one of the best teachers I have come across so far :)
Many Many Thanks Venkat sir...
Waiting for this for a long time.
I am a DBA, using SQL Server and SSRS. However, I would like to learn more about C# and back-end programming. These videos are an invaluable resource. Thank you so much. :)
Thank you David. Very glad you are finding our courses useful. You can find all our free courses at the following link.
th-cam.com/users/kudvenkatplaylists?sort=dd&view=1
Hi Venkat, You are doing an excellent job in sharing your knowledge. Many say donating food is great deed but I would say donating knowledge is better deed than the materialistic deeds
The bestest tutorials i ever seen in .NET.Thank you venkat for amazing tutorials.Keep up the good work.
This is an exceptionally superb video tutorial on Entity Framework. Thousands thanks Mr. Venkat
Amazing videos Venkat. You are a great teacher indeed. I agree with others. You are serving humanity with your brilliant videos. Keep it up.
With Simple steps you explored a lot Sir .... Now i have got an idea on that sir. Thanks a lot sir.wait for more videos in depth.
Thank you so much venkat. You are videos are awesome. Keep posting videos and help students as much as you can.
Now this is what they should teach in college. These videos are worth more than a degree. I also haven't had this much fun programming in a long time now that I understand so much more. Thank you for empowering us developers to become better programmers. I'm going to be testing out Entity Framework into my test MVC project today. I've been creating classes from scratch with nested classes (List), DataReaders and if logic to populate nested classes. I want to see if Entity Framework can solve this for me. Thanks again : )
Dear Mr. Venkat,
I'm an avid follower of your tutorials. Recently, I have started learning Entity Framework (EF).
While practicing the codes in my PC, I have encountered a problem.
In your tutorial, I believe you were using Entity Framework version less than 6.0, and I am using version 6.0,
which is why I am unable to use EntityDataSource control that you have mentioned in your tutorial.
If I try to use the EntityDataSource control in EF 6, I get this error - This version of the Entity Data Source wizard is only compatible with EF 5.... (I have emailed you the screenshot).
After a lot of googling, I have found out a solution as well.
- First, if we are using EF 6, we should install the following via NuGet Package Console (in the following order):
1. Microsoft.AspNet.EntityDataSource
2. Microsoft.AspNet.DynamicData.EFProvider
- Once the above is done, we need to manually, bind the data source using the following piece of code:
1. In WebForm1.aspx :
2. In WebForm1.aspx.cs, we will define the above 'DepartmentGrid_GetData' method :
public IQueryable DepartmentsGrid_GetData()
{
EmployeeDBContext db = new EmployeeDBContext();
var query = db.Departments_EF;
return query;
}
3. Finally, I edited the data binding expression as per my class name : Eval("Employees_EF")
[***Please NOTE that 'EntityFramework_WebApp' is the name I have given to my namespace, and 'Departments_EF' and 'Employees_EF' are the class names Entity Framework has generated according to the table names which I have used***]
The whole point of explaining all these is to request you to add another video which would take into account the newer changes Microsoft has done, so that others (who might be using a newer version of EF) can be benefitted.
Anyway, thanks a ton for all your tutorials. I really appreciate the efforts you have put in for all the developers and coders like me.
Great as usual ! please go in depth in this subject it is very important . you are the best presenter really .
Just a heads up for anyone trying to follow this tutorial and running into the issue that the EntityDataSource control isn't compatible with Entity Framework version 6 and higher: Basically uninstall Entity Framework version 6 from the NuGet package manager (tools -> NuGet package manager -> manage NuGet packages for solution) and re-download Entity Framework but ensure in the versions drops down box you select version 5. You will now find the rest of the tutorial flows as expected. Note that if you're already half way through when you discovered this bug I would strongly recomment you just dump you solution and start again with version 5 of Entity Framework.
Now as a further addendum, there's an updated EntityDataSource control available on NuGet package manager that supports Entity Framework version 6 but unfortunately this update version of the control doesn't support the nice UI to configure it in the webform design view. So for newbs like us trying to get to grips with what's going on I would recommend just downgrading your version of Entity Framework, perhaps look at how the UI has manipulated the EntityDataSource for Entity Framework v5 in the html markup after you have configured it and then that'll probably give you a good footing on how to manipulate the updated EntityDataSource control in the html markup.
Great advice on checking markup. This was the route I was going to take, and I'm glad someone else agrees it's a good idea.
Thank you Kifter, that helped big time.
Thanks Kifter.. It was really helpful
Thanks a lot
Long awaited series. Very good understanding. Thank you very much.
Thank you venkat,your all of video are very helpful for me.........
Hi Venkat,
thank for this video. Much helpfull for carrier and easily understandable....
Thank you so much sir ....you r awesome .....i have been following you since long.I am glad to have this another precious video series ...thanx for caring us ..May GOD bless you .
thnx a lot sir....all ur playlist videos are very very useful
Thanks a lot Venkat ...u r doing a Commendable job..
thank you very much sir for these all series.I am feeling very confident before.
Thank you for sharing your valuable knowledge with us ! Thanks a lot !
Thank you Venkat Sir for EF videos
Venkat Sir please pleaseeeeeeeeeeee upload LINQ and n-tier architecture tutorials...and also explian how to use LINQ in Entity framework
In Schema first approach, if T4 code generation is enabled for model no code would be generated in the Model.Designer.cs, in order to enable legacy code generation, change the value of the "Code Generation Strategy" designer property to "Legacy ObjectContext". This property is available in the Properties Window when the model is open in the designer by just right-clicking the background.
Have been waiting for ages for this video series.. Thanks sir..
This must be the best video on TH-cam! Thanks a lot! You're really good in explaining things up!
Hello Kudvenkat
First of all I want to thank you for all your tutorials shared for us. They are very useful and clean to understand easily. I want to ask you that is there any tutorials you shared for entity framework but for window forms application. The one you shared is for web application as i see. I want to learn entity framework using forms application.
thanks very much!
Aydin, Istanbul.
At first, I would like to thank you so much for your efforts. As you know, EF 7 is in beta now, and there is only Code First approach. I wish if you have some time to record a video that explain the new advantages.
Can you please clarify what you meant by: "there is only Code First". Doesit mean that Code First will be the main strategy for development? Any references with regard to this issue.
AOA sir! i am very thankful to u for sharing own knowledge with us
JAZA KA ALLAH
You are awesome Mr. Vanket!
Thanks . Nice video. It's very much helpful.
Hello Venkat sir, Literally these videos are awsome, Thanks for your support, Please provide a tutorial on Entity framework Core explaining the differences to normal Entity Framework as world is moving towards .NET Core, and cross platform apps. Hope if you can provide tutorials on Azure soon, As the .net is getting as partial skill set with out Azure Skills. Thanks Once again sir.
Hello Hemakiran - Thank you very much for the feedback and for the great course suggestions. Entity framework Core is covered starting from Part 45 in our asp.net core tutorial. The following is the link for it. Hope you will find it useful.
www.pragimtech.com/courses/asp-net-core-mvc-tutorial-for-beginners/
If you have time, can you please leave your rating and valuable feedback on the reviews tab. It really helps us. Thank you. Good luck and all the very best with everything you are doing.
Thanks, Venkat, you have great teaching skills. Keep it up. Love from Portharcourt, Nigeria
thanks for the tutorials, I would like to ask what options do I have to add a new property to the model object and add a new column in the mapped table. Thank you
Hi Sir,
Please answer me the interview question that was asked to me. Thanks in Advance.
How to use multiple connection strings with entity framework and how to select the connection string on a fly?
Thanks,
Priya....
Good One Mr. Venkat.. Thank you for the entity framework videos
I really liked this video I was excited to see the later part with the departments on the left and employee details on the right but I use windows forms i guess it is not available. Is there any 3rd party tools grids Entity source adapaters that would make it work so easlily in Windows forms?
Dear Venkat garu,
could You please upload new updated version Entity work framework 6
You are a good man ,sir
awaiting for too , thanks very much
Hi Venkat, Nice step by step explanation of Schema First Approach. But i saw most of code is from GUI point not like by coding. Can you explain with out using GUI please.
Thanks .. you save my life !!
Can anyone pls tell me
These 25 vdos are the full pack we need to learn for entity framework n?
Hi sir, can you provide a new tutorial for Entity Framework Core? Greetings :)
Immediately to the point, I love it.
great sir.also working with linq and lambda expression in Entity framework
Your videos are the best videos I'v ever watched. Thank you very much. But where can I find these power point files ? I want to download them all if you dont mind. thank you sir
hi venkat,
thanks for the video . but you havn't shown the which type of project to choose primarily.
asp.net web application or asp.net mvc4 application and there after what kind of template before adding ado.net entity framework.
will you please help me in this case?
Hi Kudvenkat, I try doing this demo without installing Entity Framework for that demo project in Visual Studio 2010, and it still works fine; it supposes not to working because this demo is based on Entity Framework, isn't it?
Please check and explain asap. Thank you.
Hello, Venkat,
Great videos.Tnx a ton for knowledge sharing.
Hello sir thank u so much for this wonderful tutorial...
Sir, got an issue
my EmployeeModel.Designer.cs
has no code generated by automatically as well as i think because of this am not able to configure the data source as well .. pls help me out ..
evn same here how to reslove it help me
Thank you Sir, you r really great person.
We are waiting for this long time Thank you very much sir great job!
Hi Venkat,
I have one doubt in Entityframe work...that is "which situation we use the Code first,mode first,database first in project",can u clarified the question.
Hi Venkat When i have edited item template and inserted a gridview and put the expression Eval("Employees") in custom expression,
I am getting a exception
"System.Web.UI.WebControls.EntityDataSourceWrapper' does not contain a property with the name 'Employees'"
Hi Venkat,
Im using VS-2013 with entity framework 6.0.
While configuring data source, I did rebuild the solution and clicked on EmployeeDBContext, but I am still getting the error stating "The provider did not return a ProviderManifest instance".
I am stuck here. Can you please clear this out?
Same problem here :/!
Open the EDMX file in notepad and change the ProviderManifestToken attribute value to 2008 from 2012
Before: ProviderManifestToken="2012"
After: ProviderManifestToken="2008"
This will resolve the problem
Ivandro Ismael Open the EDMX file in notepad and change the ProviderManifestToken attribute value to 2008 from 2012
Before: ProviderManifestToken="2012"
After: ProviderManifestToken="2008"
This will resolve the problem
Fantastic!! Was waiting too, thank u very much.
Not sure if anyone else has run into this but I've tried this about 5x and get the same results.
Running VS.net 2015, and I believe the current version of NuGet Package Manager. I install the EntityFramework per this tutorial and in the NuGet Pckg Mgr it shows 6.1.0. I'm guessing that's because it's the most current version. I install that but when I hover over the EntityFramework reference in my project it shows 6.0.0. Any ideas what the problem is?
Also, when I view the EmployeeModel.Designer.cs code, I do not see any c# code. It's all commented out code that starts with "// T4 code generation is enabled for model..." Any ideas why I am not getting any generated code?
Bottom line is I'm looking forward to watching the rest of these videos. Very easy to follow and understand. And the accompanying web page is a bonus!! Thank you!!
+John Waclawski try to isntall entity framework 5.0.0... it did work by me this way, with version 6.x.x it didnt work
Hi Sir,
I have one question here. Why we use explicit transaction(BeginTransaction) in entity framework , when we can achieve the same with single Savechanges() ?
good job explaining this thank you kudvenkat
hi Venkat,
I am using visual studio 2013 and i saw 1st video of your tutorial.
I cant find the designer.cs file of entityframe as like yous.Can you explain how can i find all of these classes which you have show in this video.
This is great resource and I appreciate it. I was following this tutorial and also working with VS 2012. After creating the webform1 and wanted to select the Named Connection, I got an error that reads "unable to load the specified metadata resources". I also compiled the solution as you suggested but the error persisted. I checked the connectionstring in the web.config file but it looks OK. What am I missing here. Thanks
Hi Venkat,
Just following the above video.
I am able to retrieve Departments, but unable to link "Employee" in template column. I have ensured all keys are defined properly. I am keep getting following error after setting "include" with "employees" in entity data source. Any idea ? Im unable to proceed.
"The result type of the query is neither an EntityType nor a CollectionType with an entity element type. An Include path can only be specified for a query with one of these result types. "
thanks Sat
Hello , will you please teach me how to search from textbox in entity framework ?
Hi: I do not get code in my EmployeeModelDesigner.cs Iam vs2012. I triedtogenerate but in vain. any suggestions? the message on the page is
// T4 code generation is enabled for model 'C:\Project_ASP\eSchool\eSchool\EmployeeModel.edmx'.
// To enable legacy code generation, change the value of the 'Code Generation Strategy' designer
// property to 'Legacy ObjectContext'. This property is available in the Properties Window when the model
// is open in the designer.
// If no context and entity classes have been generated, it may be because you created an empty model but
// have not yet chosen which version of Entity Framework to use. To generate a context class and entity
// classes for your model, open the model in the designer, right-click on the designer surface, and
// select 'Update Model from Database...', 'Generate Database from Model...', or 'Add Code Generation
// Item...'.
// T4 code generation is enabled for model 'C:\Project_ASP\eSchool\eSchool\EmployeeModel.edmx'.
// To enable legacy code generation, change the value of the 'Code Generation Strategy' designer
// property to 'Legacy ObjectContext'. This property is available in the Properties Window when the model
// is open in the designer.
// If no context and entity classes have been generated, it may be because you created an empty model but
// have not yet chosen which version of Entity Framework to use. To generate a context class and entity
// classes for your model, open the model in the designer, right-click on the designer surface, and
// select 'Update Model from Database...', 'Generate Database from Model...', or 'Add Code Generation
// Item...'.
Sir you have shown data binding with two tables if you have time please let us know how to bind 3 tables in the same way. Like countries,states,and cities
Hi Venkat
Your videos are nice and easy to learn.
But I request you create the same video with MVC instead of WebForms
As we know that ASP.NET web forms IS DEAD
Sir, can you upload videos in tamil languages its useful for tamil medium students,from tamilnadu and your hopeful friend kodees. your any topics of the videos superbbb one its useful every IT fresher jobseekers. thanking you
Excellent Example....
Hi Venkat, is it possible to show a data gridview like that in windows form?
Very good tutorial. Thanks!!
I don't know how to get rid of the 403.14 error... iis : directory browsing is enable . What am I doing wrong?
thank´s for video tutorial, I'm learning this technology by Microsoft.
Would it be possible to get an addition to this series which would discuss subject "What has happened over the last two years"? So things like new version syntax (if any), easier ways to do things, possible problems you might run into while trying these examples with newer versions like EF7 or Visual Studio 2015 and all the other things you find relevant that might have happened.
Or, suggest a video / other source if you feel one is done already.
Oh and thanks for a good video series. These are very easy to understand.
+Arto Kilponen As a good example, how about this Part 1 video at 10:55, where we have EntityDataSource and the entire thing falls apart the second I press "Configure Data Source..." with message
"This version of the Entity Data Source wizard is only compatible with Entity Framework 5. If you're not using Entity Framework 5 you can configure the control by editing the markup on the page. The page editor has IntelliSense support for ASP.NET controls. If you're using Entity Framework 6 you should be using the EF6-compatible version of the Entity Data Source control, avaiable as the Microsoft.AspNet.EntityDataSource package in NuGet."
So, sure, I understand, type some text to the markup - but what and where?
One pitfall: Web Form might want you to use EF5, not EF6. And if you already took EF6, then you need to downgrade using Nuget packet manager and also _manually_ change the .edmx file (open it as XML, not as designer) and change in "ProviderManifestToken="2012"" that 2012 to 2008. This worked for me with Visual Studio 2017.
Also, if you run into problems with Chrome, try IE. Especially if you are here just to see that you can get things to work too, not actually developing some code directly to production.
And adding that new EF-item is not the same than in the video, but it was close enough (EF Designer from database).
If someone here knows how I get this to work work with EF6 let alone EF7, please let me know. As said, now it "crashes" to 11:11
Awesome videos. Can you please upload your C# code and SQL scripts onto public GIT and share the link for us?
Hello Sir, Please add some videos related to migration. I am really in need of that.
Great video! Thanks a lot !
When I connect the database the EmployeeModel.emdx gets added but nothing gets populated in the Designer.cs. A lot of other files gets created too. The designer simply shows few commented lines of code. And later on when I configure the data source it always the metadata error, whether I rebuild or clean the whole solution, whatever. I am using VS2013. Please help me with this issue.
I have got the same problem...
Need solution....
Same problem for me too...
People I guess this feature is currently not supported in 2013. Please try this once on 2010.
me too. Metadata Problem
Abhiram Reddy Gaddampalli Thanks a lot ;)
Sir, in real time which approach of entity framework we will use the most?
Hi Venkat,
My name is Mayank...I have one question is this required to match the SQl Server version and Visual studio Version for entity framework because I am getting one error when I am trying to do schema approach that "Could not load file assembly sql server version is 12" and I am using Visual studio15 and SQL server12.
Hi venkat.The tutorial is interesting unfortunately I did not manage to configure the object context due to the following error.
("This version of the Entity Data Source wizard is only compatible with Entity Framework 5. If you're not using Entity Framework 5 you can configure the control by editing the markup on the page. The page editor has IntelliSense support for ASP.NET controls. If you're using Identity Framework 6 you shold bo using the EF6-compatible version of the Entity Data Source control, avaiable as the Microsoft.AspNet.EntityDataSource package in NuGet".)
I downgraded the entity framework through the nuget but nothing worked. I am using visual studio community
+bugz gz, I am also getting same problem. Have you get solution for this?
+Ashish Singh Maybe that's not actual anymore, but you can solve this in two ways: when adding ADO.NET Entity Data Model, choose "Entity Framework 5.x". And if you need to use EF6, then You need to add www.nuget.org/packages/Microsoft.AspNet.EntityDataSource/ to your project and changing namespace in EntityDataSource from "asp:" to "ef:". That's because EDS doesn't support EF6.
Hi sir,
I tried the same example exactly following the steps as told in the video,but when I run the solution in browser I couldnt see any response.I just see a blank page.I have checked for this error on google for solution, like I tried running this command in cmd: %windir%\Microsoft.NET\Framework64\v4.0.30319\aspnet_regiis.exe -ir
and also tried deleting temp files. But none of them worked for me. Please provide me with a solution sir!!
Hi Venkat,
I am using VS2012 with ef 6 and always getting the metadata error even after building solution and even after changing ProviderManifestToken="2012" to ProviderManifestToken="2008". I have tried to google the issue many times but still unable to resolve it. Any suggestions please? As I am not able to proceed with the tutorial.
Thanks
KJ
Hello can u please help me with the below error "Unable to load the specified metadata resource. I got this error after compiling the solution .
Hai venkat..I m facing a error i.e System.Web.HttpException when it run. It occurred when we give DataSource=''> how it overcome
Sir I'm using database first approach, I got a problem in id. Database doesn't provide id in serial, it always jumping.
Please help.
hi venkat,when i try to view the designer.cs class no code is present which is shown in the vedio. can u please help me out
which version of visual studio your using?Is it Visual Studio 2010
Hi , im getting "Data source is an invalid type. It must be either an IListSource, IEnumerable, or IDataSource." while compliling. Please help..
Thank you.
Hi Sir
I am facing some problem when ever I practice your tutorials actually I am newly studied the entity framework please solve the problem .
I had taken same thing what ever you had taken in the first example I am facing the Problem here
Before building the solution what ever error you told same error came .After building also the this error came
The provider Did n't Return a ProviderManifest instance
Hi Venkat,
Im using VS-2013 with entity framework 6.0.
While configuring data source, I did rebuild the solution and clicked on EmployeeDBContext, but I am still getting the error stating "The provider did not return a ProviderManifest instance".
I am stuck here. Can you please clear this out?
I Modify ProviderManifestToken attribute 2012 to 2008 but its still showing error