Add custom static method to auto generated codes in EF6

Question

How can I add a custom static method to auto generated codes in EF6? (using model.tt)

public partial class tbl_Persons
{
    public static void MyMethod(int personID)
    {
    //my codes
    }

    public tbl_Persons()
    {

    }

    public int ID { get; set; }
    public string FirstName { get; set; }
    public string LastName { get; set; }
    public string FatherName { get; set; }
}

Answer 1

1. Read more about partial classes
2. Create new file

3. Place your code in this file:

    public partial class tbl_Persons { public static void MyMethod(int personID) { //my codes } }