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Use this event to

Change the data on the selected label just before it is sent to the Cloud Print Service

• Make sure you are only handling the desired template.
• Use GetValue/SetValue to modify the dataset

Template

    [EventSubscriber(ObjectType::Codeunit, Codeunit::"MOB Print", 'OnPrintLabel_OnAfterPopulateDataset', '', true, true)]
    procedure OnPrintLabel_OnAfterPopulateDataset(_TemplateName: Text; _SourceRecRef: RecordRef; var _Dataset: Record "MOB Common Element" temporary)
    begin
    end;

Example 1: Modify labels on Item Label

    [EventSubscriber(ObjectType::Codeunit, Codeunit::"MOB Print", 'OnPrintLabel_OnAfterPopulateDataset', '', true, true)]
    procedure Ex02OnPrintLabel_OnAfterPopulateDataset(_TemplateName: Text[50]; _SourceRecRef: RecordRef; var _Dataset: Record "MOB Common Element")
    begin

        // Making sure we only handle our own Label-Template
        if _TemplateName <> 'Item Label 4x6' then
            exit;

        // Modify labels
        _Dataset.SetValue('UnitOfMeasure_Label', 'Units');
        _Dataset.SetValue('LotNumber_Label', 'Batch No. ');
    end;

Example 2: Set extra info fields and their labels

    [EventSubscriber(ObjectType::Codeunit, Codeunit::"MOB Print", 'OnPrintLabel_OnAfterPopulateDataset', '', true, true)]
    procedure Ex03OnPrintLabel_OnAfterPopulateDataset(_TemplateName: Text[50]; _SourceRecRef: RecordRef; var _Dataset: Record "MOB Common Element")
    begin

        // Making sure we only handle our own Label-Template
        if _TemplateName <> 'Item Label 4x6' then
            exit;

        // Set extra info fields and their labels
        _Dataset.SetValue('ExtraInfo01', 'ExtraInfo01_Value');
        _Dataset.SetValue('ExtraInfo01_Label', 'ExtraInfo01_Label');

        _Dataset.SetValue('ExtraInfo02', 'ExtraInfo02_Value');
        _Dataset.SetValue('ExtraInfo02_Label', 'ExtraInfo02_Label');

        _Dataset.SetValue('ExtraInfo03', 'ExtraInfo03_Value');
        _Dataset.SetValue('ExtraInfo03_Label', 'ExtraInfo03_Label');

        _Dataset.SetValue('ExtraInfo04', 'ExtraInfo04_Value');
        _Dataset.SetValue('ExtraInfo04_Label', 'ExtraInfo04_Label');
    end;

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