private void IssueGRN() { DateTime DeliveryDate = Convert.ToDateTime(txtDeliveryDate.Text); ERPConfig clsERPConfig = new ERPConfig(); ERPConfigDetails clsERPConfigDetails = clsERPConfig.Details(); clsERPConfig.CommitAndDispose(); if (clsERPConfigDetails.PostingDateFrom <= DeliveryDate && clsERPConfigDetails.PostingDateTo >= DeliveryDate) { long SOID = Convert.ToInt64(lblSOID.Text); string CustomerDRNo = txtCustomerDRNo.Text; SO clsSO = new SO(); clsSO.IssueGRN(SOID, CustomerDRNo, DeliveryDate); clsSO.CommitAndDispose(); string stParam = "?task=" + Common.Encrypt("list", Session.SessionID) + "&soid=" + Common.Encrypt(SOID.ToString(), Session.SessionID); Response.Redirect("Default.aspx" + stParam); } else { string stScript = "<Script>"; stScript += "window.alert('Sorry you cannot post using the delivery date: " + txtDeliveryDate.Text + ". Please enter an allowable posting date.')"; stScript += "</Script>"; Response.Write(stScript); } }