private void btnFree_Click(object sender, EventArgs e)
{
Result res = SetRentStatus(_salesno, _custno, _prodno, _prodtype, _itemno, 3, "");
if (res != null && res.ResultNo != 0)
{
_core.AlertShow("Торгууль төлөх", res.ResultDesc, 2);
}
else
{
this.DialogResult = System.Windows.Forms.DialogResult.OK;
this.Close();
}
}