Question

I have such Linq, I would like to get all records from Orders table and also add new dynamic field. The code below do not work. What is correct syntax?

user.dcOrders.Select(p =>p, new { FullName = p.FirstName + " " + p.LastName })

Answer 1

You’ll need to list out all the columns.

Alternatively you could add a new property to whatever class dcOrders is. It should be specified as a partial class so you can add the FullName property to a new file so it doesn’t get overwritten when the .designer.cs file is regenerated.

So something like

public partial class Orders
{
    public string FullName { get { return this.FirstName + " " + this.LastName; } }
}

Be sure to add this to a separate file not the .designer.cs file. (I’m assuming LINQ to SQL here).

Then you don’t need to do any special select, because FullName will already exist as a property on the object. You can just use it directly.