Case

Proposed solution

This examples prints on posting of Warehouse Receipt Lines

• You want to print labels from the mobile device
• You want to use the integrated Cloud Print Service solution
• The label should be printed automatically when posting occurs  

Step 1: Add printer steps on posting

In order to determine when, where and what to print, we add a step on posting

Add the following code to create a step on posting.

See also: How-to: Add Header Step

  // In order to determine when, where and what to print, we add a step on posting

       [EventSubscriber(ObjectType::Codeunit,  Codeunit::"MOB WMS ReceiveMOB WMS Pick",  'OnGetReceiveOrderLinesOnPostPickOrder_OnAddStepsToAnyHeader',  '',  truetrue,  truetrue)]
        local procedure MyOnGetReceiveOrderLines OnPostPickOrder_OnAddStepsToAnyHeader(var _OrderValues: Record "MOB Common Element"; _RecRef:  RecordRef;  var  _StepsElement:  Record  "MOB Steps ElementMOB Steps Element")
        var
        MobPrint        MobPrint:  Codeunit  "MOB PrintMOB Print";
        begin
                if  (_RecRef.Number()  in  [DataBase::"Warehouse Receipt Header", Database::"Purchase Header"]) then begin
            Warehouse Activity Header"]) thenbegin
           
            // Break when 'Printer' step has been collected to prevent infinite loop
            if _OrderValues.HasValue('Printer') then
                exit;
           
            _StepsElement.Create_ListStep(1,  'Printer');
                        _StepsElement.Set_header('Label printLabel print');
                        _StepsElement.Set_listValues('   ;'  +  MobPrintMobPrint.GetMobilePrinters('Item Label 3x2Item Label 3x2', ''));  //  Allow user to select blank printer + the printers attached to this labeltemplate
            Allow user to select blank printer + the printers attached to this labeltemplate
            _StepsElement.Set_helpLabel('If you want a label, please select a printerIf you want a label, please select a printer.');
                end;
      end;

Select the right event

The example code is for receive.

Select another event if you are working with another function.

Step 2:  Handle steps on posting to issue print

    // We read the collected step (printer).
    // Issue a print based on printer, label and the current context (Order Line)
    // Print engine will build a dataset

   [EventSubscriber(ObjectType::Codeunit, Codeunit::"MOB WMS Receive", 'OnPostReceiveOrder_OnAfterPostAnyOrder', '', true, true)]
    local procedure MyOnPostReceiveOrder_OnAfterPostAnyOrder(var _OrderValues: Record "MOB Common Element"; _RecRef: RecordRef; var _ResultMessage: Text)
    var
        MobPrinter: Record "MOB Printer";
        TempPrintParameter: Record "MOB Print REST Parameter" temporary;
        MobPrint: Codeunit "MOB Print";
        MobLanguage: Codeunit "MOB WMS Language";
        MobPrintBuffer: Codeunit "MOB Print Buffer";
        PrintCommand: Text;
    begin
        // -- Prepare to Print
        // Did user select a printer?
        ifnot _OrderValues.HasValue('Printer') then
            exit;

        // -- Print
        // Init printer parameters
        Evaluate(TempPrintParameter.Printer, _OrderValues.GetValue('Printer'));
        TempPrintParameter."Label-Template Name" := 'Item Label 3x2';

        // Set parameters
        MobPrint.SetSourceRecRef(_RecRef);
        MobPrint.SetRequestElementsFromOrderValues(_OrderValues);

        // Perform cloud print
        if MobPrint.Run(TempPrintParameter) then begin

            // Command is returned from cloud
            TempPrintParameter.GetResponseContentAsBase64Text(PrintCommand);

            // Convert the printer selected to an Address
            MobPrint.GetPrinterFromName(MobPrinter, TempPrintParameter.Printer);

            // Save response to be sent in the next Mobile response
            MobPrintBuffer.Add(MobPrinter.Address, PrintCommand);

        end else
            // If failed, append Error to ResultMessage 
            _ResultMessage := _ResultMessage + ' ' + MobLanguage.GetMessage('PRINT_FAILED') + ': ' + GetLastErrorText();
    end;

Select the right event

The example code is for receive.

Select another event if you are working with another function.

Step 3: Modify print "Dataset" (optional)

Use this event to modify the automatically generated dataset, to suit your label needs.

• OnPrintLabel_OnAfterPopulateDataset
• You can also add custom values to the dataset (you have also created a customized label-template)