private void btnSearchDVD_Click(object sender, EventArgs e)
{
DVD title = new DVD();
DataSet ds = new DataSet();
grdSelectDVD.DataSource = DVD.getSearchDVD(ds, txtSearchDVDTitle.Text.ToString().ToUpper()).Tables["ss"];
grdSelectDVD.AllowUserToAddRows = false;
lblSlctDVD.Visible = true;
grdSelectDVD.Visible = true;
btnRent.Visible = true;
}