Question

I have a FlowDocumentScrollViewer I want to automatically scroll to the bottom when text is added.

<FlowDocumentScrollViewer Name='Scroller'>  <FlowDocument Foreground='White' Name='docDebug' FontFamily='Terminal'>   <Paragraph Name='paragraphDebug'/>  </FlowDocument> </FlowDocumentScrollViewer> 

In code I add Inlines to the Paragraph, but when there is to much text I would like to be able to simply scroll down using code instead of having the user doing so.

Any suggestions?

Answer 1

The other answers given here are a bit puzzling, since I don’t see any public ‘ScrollViewer’ property on the FlowDocumentScrollViewer.

I hacked around the problem like this. Beware that this method can return null during initialization:

public static ScrollViewer FindScrollViewer(this FlowDocumentScrollViewer flowDocumentScrollViewer) {     if (VisualTreeHelper.GetChildrenCount(flowDocumentScrollViewer) == 0)     {         return null;     }      // Border is the first child of first child of a ScrolldocumentViewer     DependencyObject firstChild = VisualTreeHelper.GetChild(flowDocumentScrollViewer, 0);     if (firstChild == null)     {         return null;     }      Decorator border = VisualTreeHelper.GetChild(firstChild, 0) as Decorator;      if (border == null)     {         return null;     }      return border.Child as ScrollViewer; }