private void button_OnOK_Click(object sender, EventArgs e)
 {
     if (this.dataGridView_Query.CurrentRow == null)
     {
         this.DialogResult          = DialogResult.None;
         this.label_ErrMessage.Text = "ÇëÑ¡ÔñÒ»Ìõ¼Ç¼£¡";
         return;
     }
     myClass_MaterialCCSGroup.MaterialCCSGroupAb = this.dataGridView_Query.CurrentRow.Cells["MaterialCCSGroupAb"].Value.ToString();
     myClass_MaterialCCSGroup.FillData();
     this.DialogResult = DialogResult.OK;
     this.Close();
 }