Multiple file names can also be passed semicolon-separated. Then a combination print is performed and the outputs of the individual projects are summarized as total output. But additionally the display of the file selection dialog must be suppressed by setting the property AutoShowSelectFile to false.

For combination printing with a semicolon-separated list, you can also provide your own information for the Event NextCombinationPrintStep using the syntax "JOB=".

// Create List & Label object
using(ListLabel LL = new ListLabel())
{ 
    // Define data source and some options
    // ...

    // Prepare the combination print
    LL.AutoProjectFile = @"C:\temp\Cover.lst;JOB=MyValue;C:\temp\Report.lst";
    LL.AutoShowSelectFile = false;

    // Execute the print
    LL.Print();
}

' Create List & Label object
Using LL As New ListLabel()                

    ' Define data source and some options
    ' ...

    ' Prepare the combination print
    LL.AutoProjectFile = "C:\temp\Cover.lst;JOB=MyValue;C:\temp\Report.lst"
    LL.AutoShowSelectFile = false;

    ' Execute the print
    LL.Print()
                   
End Using 

In addition to "JOB=", the identifiers "TOC=" (table of contents), "IDX=" (index) and "GTC=" (reverse side) are also available.

Platforms: Windows 10 (Version 21H2 - 23H2), Windows 11 (21H2 - 22H2), Windows Server 2016 - 2022
.NET: .NET Framework 4.8, .NET 6, .NET 8, .NET 9

Reference

ListLabel Class
ListLabel Members