public bool PurchaseOrderNumberCheckExistence(string strinvoiceNo, decimal decPurchaseorderMasterId, decimal decVoucherTypeId)
 {
     PurchaseOrderMasterSP SPPurchaseOrderMaster = new PurchaseOrderMasterSP();
     bool isEdit = false;
     try
     {
        isEdit= SPPurchaseOrderMaster.PurchaseOrderNumberCheckExistence(strinvoiceNo, decPurchaseorderMasterId, decVoucherTypeId);
     }
     catch (Exception ex)
     {
         MessageBox.Show("PoBll 18:" + ex.Message, "OpenMiracle", MessageBoxButtons.OK, MessageBoxIcon.Information);
     }
     return isEdit;
 }