[Mono-bugs] [Bug 464191] New: TreeView / TreeNode selection isn't cancelled properly

bugzilla_noreply at novell.com bugzilla_noreply at novell.com
Wed Jan 7 12:34:16 EST 2009


           Summary: TreeView / TreeNode selection isn't cancelled properly
           Product: Mono: Class Libraries
           Version: 2.2.x
          Platform: Other
        OS/Version: Windows
            Status: NEW
          Severity: Normal
          Priority: P5 - None
         Component: Windows.Forms
        AssignedTo: mono-bugs at lists.ximian.com
        ReportedBy: stifu at free.fr
         QAContact: mono-bugs at lists.ximian.com
          Found By: Community User

Created an attachment (id=263659)
 --> (https://bugzilla.novell.com/attachment.cgi?id=263659)
Testcase (sources + binaries)

See testcase.

We have a simple TreeView with 3 nodes.
We catch the "BeforeSelect" event to cancel the selection, like this:

void TreeView1BeforeSelect(object sender, TreeViewCancelEventArgs e)
        e.Cancel = true;

In Mono, the concerned node is still highlighted after having been selected.
Click on other nodes then, and each of them will stay highlighted.
With MS .NET, the node is only highlighted until you release the mouse button.

I can confirm the presence of this bug with Mono 2.0.x and 2.2.x on Windows,
but can't check Linux at the moment.

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