Hi @TharidhiP Please find the code below for Multi Checkbox

  protected virtual void DACName_FieldName_FieldSelecting(PXCache cache, PXFieldSelectingEventArgs e)
        {
            DACName row = e.Row as DACName;
            List<string> ItemClassLabels = new List<string>();
            List<string> ItemClassValues = new List<string>();
            foreach (INItemClass item in PXSelectReadonly<INItemClass>.Select(this))
            {
                ItemClassValues.Add(item.ItemClassID.ToString());
                ItemClassLabels.Add(item.ItemClassCD.Trim().ToString());
            }
            e.ReturnState = PXStringState.CreateInstance(e.ReturnState, 10, true,
                typeof(DACName.FieldName).Name, false, -1, string.Empty, ItemClassValues.ToArray(), ItemClassLabels.ToArray(), false, null);
            ((PXStringState)e.ReturnState).MultiSelect = true;
        }

@TharidhiP Please ignore the above comment.

@TharidhiP  You wanted to load the Packaging Option dropdown from custom screen, based on the selection of an item ?

If yes, please write a “InventoryID field updated” event, and based on the Inventory ID fetch the “Packaging Option” from your custom table.

Hi @Naveen B , the requirement is that whatever packaging option selected in the custom form for the given item and customer should come in the packaging option line level field in SO form. No dropdown field required, just the specific option.

Okay... I understood.

• Create a new Textbox Field in SOLine level - Read Only field
•  Please write a “Inventory ID field updated” event, and based on the Inventory ID fetch the “Packaging Option” from your custom table and assign this value to the newly created field.

protected void SOLine_InventoryID_FieldUpdated(PXCache cache, PXFieldUpdatedEventArgs e)
    {
      SOLine row = (SOLine)e.Row;

      if (row == null) return;
      PKCFPackagingOption pkgOption = PXSelect<PKCFPackagingOption,
                        Where<PKCFPackagingOption.item, 
                        Equal<Required<PKCFPackagingOption.item>>>>.Select(Base, row.inventoryID);
      var rowExt = PXCache<SOLine>.GetExtension<SOLineExt>(row);
      if(rowExt != null ){
        rowExt.usrPackagingOptionFromCF = pkgOption.packagingOption;
      }      
    }

Attempted this approach, what are the corrections to be done? @Naveen B

Hi @TharidhiP This should work.. any issue you are facing with this code?

Are you getting the values in pkgOption object?