In Entity Framework, how can I utilize the default column value from a DataBase?

If a LINQ to Entities query produces no results, how do you deliver a default value?

In a LINQ to entities expression like this:...var vote = (from vote in db.Vote where vote.Voter.Id == user.Id select v).FirstOrDefault(); ...How do you add a DefaultIfEmpty value so that when there's no vote I'd get a default value?

How to utilize Entity Framework's default date values and Entity Framework's default entity framework

In my SQL Server database schema I have a data table with a date field that contains a default value of...CONVERT(VARCHAR(10), GETDATE(), 111) ...which is ideal for automatically inserting the date into the new record when manually entering records in to the database....The problem I have is that when using the Entity Framework and mapping the Date...

Default value for property using Data Annotations in Entity Framework

I have a model like this...public class MyModel { public int MyModelId { get; set; } public string Name { get; set; } public string Description { get; set; } public string Title { get; set; } } ...I was wondering if there's a way, using Data Annotations, to set the value of a property - say Title - default to other property value, i...

Using Entity Framework 6 Code First can I specify a default value for a Boolean field?

I am using EF6 and trying to use Code First with Migrations against a SQL DB....Is it possible using a data annotation in my POCO class to specify that the default value of a Boolean or Bit field should be true?...I know I could modify the data migrations code to add it to the specific migration class but would like to avoid that.

Database default value is not inserted while create record by entity framework

I have a LoginRecord table in sqlserver 2008 with the following column structure-...LoginId - int, identity UserId - int LoginDateTime- Allow nulls false,default value getdate() ...I am inserting new record by entity framework 6 as below-... db.LoginRecords.Add(new LoginRecord() { UserId = UserId }); db.SaveChanges(); ...But in LoginDa...

SQL column default value with Entity Framework

I am trying to use Code-First EF6 with default SQL values. ...For example, I have a "CreatedDate" column/property not null with a default in SQL of "getdate()"...How do I represent this in my code Model? Currently I have: ...<DatabaseGenerated(DatabaseGeneratedOption.Computed)> Public Property CreatedDate As DateTime ...Will this work, or will I ne...

Update Database using Entity Framework having primary key on multiple Columns

Following is the error message I get:...Store update, insert, or delete statement affected an unexpected number of rows (0). Entities may have been modified or deleted since entities were loaded. See ...http://go.microsoft.com/fwlink/?LinkId=472540... for information on understanding and handling optimistic concurrency exceptions....My model consis...

Entity Framework code-first error when using stored procedure with fields that have default value

I need to insert an entity by calling a stored procedure. The table in the database has a column called ...CreateDateTime... that has a default value of ...GetDate().... ...I do not let the stored procedure set / update the ...CreateDateTime... column. ...When I call the ...dbcontext.SaveChanges()... it does indeed call my stored procedure and it ...

EF - pass null value to SQL column so default value gets inserted

SQL Server table T2 has 2 columns:...Id INT NOT NULL CreateDate DateTime NOT NULL, default = (getdate()) ...This statement inserts the CreateDate value correctly because it uses (getdate()) as default. ...Insert T2 (Id) Values (1) ...So far so good. The problem is when I use Entity Framework to insert a row and still wish to use the default (...ge...

Using AutoMapper and Entity Framework to change what columns are fetched from a database table

We have a new requirement where we need to dynamically fetch a list of columns from a table. We have 141 columns in this table, but say we only want to return 2 or 3 of them, we just don't know which 3 until run-time....These columns are passed in as a ...List<string>..., with the hopes I could use reflection to access the property on the source ob...