Hello,
I can't figure out how to hide the outline pane or whatever the name of this part is:

I've already tried something like
var outlinePane = pdfViewer.Template.FindName("PART_OutlinePane", pdfViewer) as UIElement;
if ( null != outlinePane )
{
outlinePane.Visibility = Visibility.Collapsed;
}
var grid = pdfViewer.Template.FindName( "PART_Grid", pdfViewer ) as Grid;
if ( null != grid )
{
grid.ColumnDefinitions[0].Width = GridLength.Auto;
}
but it doesn't help.
Regards