My code now looks like this...
private void CloseLoadedDocument()
{
if (this.pdfLoadedDocument != null)
{
this.pdfLoadedDocument.Close(true);
this.pdfLoadedDocument = null;
this.DocumentViewControl.Unload();
this.DocumentViewControl.UpdateLayout();
}
}
but the display still doesn't clear until I call this.DocumentViewControl.Load(newDocument);