private void btnEdit(object sender, RoutedEventArgs e)
        {
            DataRowView rowview = dataGridView1.SelectedItem as DataRowView;
            string      id      = rowview.Row["EmpID"].ToString();

            EmployeeDataEditWindow edt = new EmployeeDataEditWindow(id);

            edt.Show();
        }
        private void btnEdit(object sender, RoutedEventArgs e)
        {

            DataRowView rowview = dataGridView1.SelectedItem as DataRowView;
            string id = rowview.Row["EmpID"].ToString();

            EmployeeDataEditWindow edt = new EmployeeDataEditWindow(id);
            edt.ShowDialog();

            if (edt.DialogResult == true)
                LoadData(null);
        }