How to generate a Page Break in Excel?

pberb

I'm trying to port over to NAV 2017 the following logic I added to the Excel Buffer table 370 in NAV 5.0 SP1 that generated a page break in Excel:

XlRange := XlWrkSht.Range(xlRowID + ':' + xlRowID);
XlRange.PageBreak := -4135;

..but this generates "a DotNET variable has not been instatiated" error.

Global XlRange variable is:
Name DataType Subtype
XlRange DotNet Microsoft.Office.Interop.Excel.Range.'Microsoft.Office.Interop.Excel, Version=15.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c'

I tried adding logic like this to instantiate the XlRange dot net variable, but without any luck...

XlRange := ?;
IF ISNULL(XlRange) THEN
ERROR(Text000);

Does anyone know how to make this work in NAV 2017? ..or if not, offer an alternate solution to generate a page break in Excel in NAV 2017?

Thanks!