Calculated column in EF Code First

Question

I need to have one column in my database calculated by database as (sum of rows) - (sum of rowsb). I\'m using code-first model to create my database.

Here is what I

Answer 1

public string ChargePointText { get; set; }

public class FirstTable 
{
    [Key]
    public int UserID { get; set; }

    [DatabaseGenerated(DatabaseGeneratedOption.Computed)]      
    public string Summ 
    {
        get { return /* do your sum here */ }
        private set { /* needed for EF */ }
    }
}

References:

• Bug in EF 4.1 DatabaseGeneratedOption.Computed
• Calculated Columns in Entity Framework Code First Migrations
• Working with Computed Columns