Is there a way to get the entire contents of a single column using Entity Framework 4? The same like this SQL Query:
SELECT Name FROM MyTable WHERE UserId = 1;
You can use LINQ's
.Select() to do that. In your case it would go something like:
string Name = yourDbContext .MyTable .Where(u => u.UserId == 1) .Select(u => u.Name) .SingleOrDefault(); // This is what actually executes the request and return a response
If you are expecting more than one entry in response, you can use
.ToList() instead, to execute the request. Something like this, to get the Name of everyone with age 30:
string Names = yourDbContext .MyTable .Where(u => u.Age == 30) .Select(u => u.Name) .ToList();
I'm a complete noob on Entity but this is how I would do it in theory...
var name = yourDbContext.MyTable.Find(1).Name;
If It's A Primary Key.
-- OR --
var name = yourDbContext.MyTable.SingleOrDefault(mytable => mytable.UserId == 1).Name;
-- OR --
For whole Column:
var names = yourDbContext.MyTable .Where(mytable => mytable.UserId == 1) .Select(column => column.Name); //You can '.ToList();' this....
But "oh Geez Rick, What do I know..."