/// <summary>
///This function is called when the delete button is clicked on the form and passes the DTO object to the bussiness layer.
/// </summary>
private void bttn_delete_Click(object sender, EventArgs e)
{
EmployeeBAL employeebalobj = new EmployeeBAL();
employeebalobj.delete(add_to_DTOobj());
MessageBox.Show("deleted sucessfully");
}