Bug 5010 - removing an expanded TreeNode from a TreeView results in an invalid selection
Summary: removing an expanded TreeNode from a TreeView results in an invalid selection
Alias: None
Product: Class Libraries
Classification: Mono
Component: Windows.Forms ()
Version: 2.10.x
Hardware: PC Linux
: --- normal
Target Milestone: Untriaged
Assignee: Bugzilla
Depends on:
Reported: 2012-05-10 15:29 UTC by Stephen McConnel
Modified: 2012-05-19 00:51 UTC (History)
2 users (show)

Is this bug a regression?: ---
Last known good build:

sample program to demonstrate the bug (6.98 KB, application/x-gzip)
2012-05-10 15:29 UTC, Stephen McConnel
proposed patch (740 bytes, patch)
2012-05-10 15:38 UTC, Stephen McConnel

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Description Stephen McConnel 2012-05-10 15:29:33 UTC
Created attachment 1851 [details]
sample program to demonstrate the bug

If an expanded TreeNode is removed from a TreeView, its first child is chosen as the new selected node.  This is obviously incorrect.

The most common user experience would just be losing any indication of a selected node.  However, in the program I'm working on, a crash results pretty easily.

In the attached sample program, Duplicate one of the complex nodes (or instance "Variant Forms"), then Remove it immediately.  A message box should pop up to inform you that the current node is now invalid.
Comment 1 Stephen McConnel 2012-05-10 15:38:02 UTC
Created attachment 1852 [details]
proposed patch
Comment 2 Miguel de Icaza [MSFT] 2012-05-19 00:51:18 UTC
Thanks fro the patch