Comments on: More Fun with WPF ScrollViewer

By: Amit

Amit — Sat, 24 Apr 2010 08:50:00 +0000

listBox1.ScrollIntoView(textBox1.Text);

this will solve the problem
no need of index as well

By: Joel

Joel — Mon, 21 Sep 2009 16:06:02 +0000

Sorry regev, I have no experience with the WPF TreeView control. I would imagine there is a CurrentNode or SelectedNode property you could use. Let us know what you find.

By: regev

regev — Mon, 21 Sep 2009 08:04:17 +0000

hi,
i was wondering if you encountered the same problem (the scrolling issue) in the WPF TreeView as well (i did…).
the above solution should be adjusted since TreeView doesn’t have any SelectedIndex property (what should such potential property return?)

By: Joel

Joel — Wed, 03 Jun 2009 14:03:00 +0000

Thanks Chris, nice to know I’m not the only one who has a hate/hate relationship with ScrollViewer!

By: ChrisC

ChrisC — Wed, 03 Jun 2009 09:39:01 +0000

(sorry about the dual posts) another point to note is that, even if you dont use a scrollviewer, and enable the listbox to perform it’s own scrolling, ScrollIntoView still doesnt work correctly.

there are multiple posts on Silverlight.net and connect.microsoft.com. i think the workaround you use above is the best that anyone has found, however this is supposed to work as well: href=”http://connect.microsoft.com/VisualStudio/feedback/ViewFeedback.aspx?FeedbackID=373113

By: ChrisC

ChrisC — Wed, 03 Jun 2009 09:28:34 +0000

The reason that BringIntoView and ScrollIntoView don’t work is that they are methods on the ListBox itself. If the ListBox is contained in a scrollviewer as you are doing (and as i am doing on a project similar to yours) as far as Silverlight is concerned, the ListBox has all the space in the world to use, and every pixel of it is visible.

The ScrollViewer, therefore, acts as a kind of window onto the ListBox, which is blocking some of the listbox content. I, as you did, first tried to use ListBox members to make the selected item visible. Because the ListBox and ScrollViewer are separate controls, the methods are ignored. the ScrollViewer, as you and i both found, is the real villain of the piece, and the one that needs beating with a sharp stick to provide the correct functionality…