public void test_delete(int ID)
 {
     test.Delete(ID);
     Insert_test_GridView.DataBind();
     Update_test_GridView.DataBind();
     Delete_test_GridView.DataBind();
 }
 public test test_insert()
 {
     test.firstName = Insert_firstName_txt.Text;
     test.lastName  = Insert_lastName_txt.Text;
     test           = test.Insert(test);
     Insert_test_GridView.DataBind();
     Update_test_GridView.DataBind();
     Delete_test_GridView.DataBind();
     return(test);
 }
 public test test_update(int ID)
 {
     test           = test.Select(ID);
     test.id        = Convert.ToInt32(Update_id_txt.Text);
     test.firstName = Update_firstName_txt.Text;
     test.lastName  = Update_lastName_txt.Text;
     test.Update(test);
     Insert_test_GridView.DataBind();
     Update_test_GridView.DataBind();
     Delete_test_GridView.DataBind();
     return(test);
 }