Description

Modify collected steps before a Label-template is printed.

You are not happy with the steps being collected as default by a template handler.
Or you have created a custom Template and want to add some steps to collect information used on the printed label.

This approach works for all templates, standard or custom.

Add a Step and remove a Step

In the following example we will be:

Making sure we are only handling our own template.
Adding an Information Step
Removing an unwanted step

Using the event OnLookupOnPrintLabel_OnAddStepsForTemplate

    [EventSubscriber(ObjectType::Codeunit, Codeunit::"MOB Print", 'OnLookupOnPrintLabel_OnAddStepsForTemplate', '', true, true)]
    local procedure MyOnLookupOnPrintLabel_OnAddStepsForTemplate(_TemplateName: Text[50]; var _Steps: Record "MOB Steps Element"; var _Dataset: Record "MOB Common Element")
    var
        Item: Record Item;
    begin

// Make sure we only handle our own Label-Template
        if _TemplateName <> 'MyItemLabel' then
            exit;

        // Check if Item No. is already collected/transferred to Dataset
        if Item.Get(_Dataset.GetValue('ItemNumber')) then
            // Add an information step using the Item no.
            _Steps.Create_InformationStep(10, 'InfoStep', 'Information', '', 'You are printing with Item:' + Item."No.");

        // Delete the unwanted Quantity-step
        _Steps.SetRange(name, 'QuantityPerLabel');
        if _Steps.FindFirst() then
            _Steps.Set_visible(false);
        _Steps.SetRange(name); // Reset the filter so the next event is not affected by you
    end;

Inspect the functionality

Your device should look this this.

Modify the behavior of the Template Handler further

All Values and display Labels can be changed through customization.
Additional values can collected using “Steps” – or you can change existing steps.
Find more examples on OnLookupOnPrintLabel_OnAddStepsForTemplate or in the links below

More examples

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Case: Print Customized License Plate Contents label (Cloud Print) — Modify the column and lines on License Plate Contents.
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Case: Print Label on Planned Function Posting (Cloud Print) — Print Label on Planned Posting, i.e. Receive, Pick, Put-away, Ship, Move etc.
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Case: Print Label on Tote Shipping Posting (Cloud Print) — Print Label on the posting of Tote Shipping.
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Case: Print muliple labels with unique lot numbers (Cloud Print) — Option to generate and print multiple unique labels
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Case: Print your own ZPL labels (Cloud Print) — Print your own ZPL labels
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Cloud Print: How to Copy a Label-Template to New — In this video, we will make a copy an existing label-template
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Cloud Print: How to modify label-template — In this video, you will be introduced to modify the design of a label-template, using the designer.
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Cloud Print: How to modify label-template and add data — In this video, you will be introduced to modifying the design of a label template, using the designer, and adding data using AL code.
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How-to: Add data to label-template (Cloud Print) — You want to modify a label template by adding data to it
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How-to: Add new/Copy a label-template (Cloud Print) — You want to add/create a custom label template with a unique design
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How-to: Modify steps on a label-template (Cloud Print) — Modify collected steps before a Label-template is printed.

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