entity-framework-4 Archives

Here’s the table Users UserId UserName Password EmailAddress and the code.. public void ChangePassword(int userId, string password){ //code to update the password.. } ...

May 27, 2022
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What effect(s) can the virtual keyword have in Entity Framework 4.1 POCO Code First?

Does the virtual keyword has an effect when used on the properties in EF Code First?. Can someone describe all of its ramifications ...

May 23, 2022
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The model backing the context has changed since the database was created

The error message : “The model backing the ‘AddressBook’ context has changed since the database was created. Either manually delete/update the database, or ...

May 21, 2022
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Introducing FOREIGN KEY constraint may cause cycles or multiple cascade paths – why?

I’ve been wrestling with this for a while and can’t quite figure out what’s happening. I have a Card entity which contains Sides ...

May 10, 2022
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Entity Framework Timeouts

I am getting timeouts using the Entity Framework (EF) when using a function import that takes over 30 seconds to complete. I tried ...

May 10, 2022
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EF Migrations: Rollback last applied migration?

This looks like a really common task, but I can’t find an easy way to do it. I want to undo the last ...

May 2, 2022
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There is already an open DataReader associated with this Command which must be closed first

I have this query and I get the error in this function: var accounts = from account in context.Accounts from guranteer in account.Gurantors ...

April 25, 2022
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