protected void btnUpdate_Click(object sender, EventArgs e) { purchaseData = new PurchaseData(); indent = new Indent(); indent.IndentId = Convert.ToInt32(hfIndentId.Value); indent.Flag = 5; //set status delivered int val = Convert.ToInt32(dpStatus.SelectedItem.Value); bool result; if (val == 1) { result = purchaseData.IndentStatus(indent); } }