Primary keys in Entity Framework Views

Entity Framework Foreign Key as Primary Key Code First

I decided to try this, and it turned out to work well....public class FooState { [Required] [Key] [ForeignKey("Foo")] public int FooStateId { get; set; } [Required] public int State { get; set; } public Foo Foo { get; set; } }

Entity Framework: View exclusion without primary key

I'm using SQL Server, and I've created a view to combine the results of two tables into a single table that has the results. My question is best expressed as follows:...SELECT SUM(col1), col2, col3 FROM Table1 GROUP BY col2, col3 ...I get the information I need from this, but my EDM excludes the view when I update it because "a primary key cannot b...

Code Generation : Add primary key / foreign key to Entity Framework

I experienced the same issue. The solution explorer (in Visual Studio 2013) displays the template file you're looking for as:...YourDataModelName.tt...You can change it to include the...[Key]... the following characteristics to the created code:...The POCO Template T4 Generator's Primary Key is locating a property.

Entity Framework 6.1.3 Mapping Foreign key to non primary key

Entity Framework 7 now makes this feasible (that is, EF Core 1.0)....From ...Unique Restrictions (i.e. Candidate Key) Support... of the.Net Entity Framework User Voice:...Support for this feature was added in EF Core 1.0 and we don’t have plans to add it in the EF6 codebase.

Entity framework issue "The table/view ' does not have a primary key defined."

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Entity Framework code-first set foreign key with primary key in same table

This response relates to your request for two foreign keys....public class WdUser : SysDomainModelBase, IWdUser { //This is your primary key of WDUser public int UserID{get;set;} //This is for your 1st foreign key mapping public virtual WDUser WDUser{get;set;} public virtual ICollection<WDUser> WDUserList{get;set;} public int fk1{get;set;} //This ...

Entity Framework, Load multiple entities by primary key in a single query while still using caching

Not inferentially....Where()... will always make a database search. Use ....Local... to explicitly query the cache:...dbContext.Entity.Local.Where(......Only entities that have already been cached or loaded will be returned; the database will not be accessed....Good to know: Create a Log function that looks like this to examine the queries:...dbCon...

Entity Framework composite key delete with one primary key

Use the RemoveRange function if you're running EF 6....Consequently, it may resemble this;...context.Cart.RemoveRange(cartItem => cartItem.CustomerID == CustomerToDelete);

Entity Framework Core "The entity type 'XXX' requires a primary key to be defined."

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Entity Framework foreign key that is not a primary key

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