if ((_DS.Tables[0] != null) && (_DS.Tables[0].Rows.Count >= 1))
{
GridViewRechargeReport.DataSource = _DS;
GridViewRechargeReport.DataBind();
ImageButton1.Visible = true;
}
else
{
lblErrorMessageRechargeReport.Text = "There have none transaction";
lblErrorMessageRechargeReport.BackColor = System.Drawing.Color.Red;
}