[ubuntu-mono] [Bug 277083] [NEW] beagle-search dies when collapsing categories

[mannheim]

Public bug reported:

Binary package hint: beagle

Using beagle 0.3.8-1ubuntu2, I do the following:

1. Launch beagle-search
2. Enter a search term like "ubuntu" or anything that is going to return some search hits.
3. The results are displayed in categories, under headings "Documents", "Conversations" and so on; and each heading has a little triangle next to it. Click on one of those little triangles.

Expected results: The little triangles are supposed to "collapse" or
"uncollapse" the listing of results in that category.

Actual results: beagle-search immediately dies and the window
disappears, when the triangle is clicked.

This is 100% reproducible on my system. However, I am actually using
hardy (Ubuntu 8.04), whereas the package is designed for intrepid. I
have built the binary deb package from the package source under hardy. I
cannot confirm whether the bug is present in intrepid.

Here is the output that is seen when beagle-search is launched from the terminal and this bug is triggered:
-----------------------
Exception in Gtk# callback delegate
  Note: Applications can use GLib.ExceptionManager.UnhandledException to handle the exception.
System.NullReferenceException: Object reference not set to an instance of an object
  at Beagle.Search.GroupView.OnCategoryToggle (ScopeType catScope) [0x00000] 
  at Beagle.Search.Category.OnActivated (System.Object obj, System.EventArgs args) [0x00000] 
  at GLib.Signal.voidObjectCallback (IntPtr handle, IntPtr data) [0x00000] 
   at GLib.ExceptionManager.RaiseUnhandledException(System.Exception e, Boolean is_terminal)
   at GLib.Signal.voidObjectCallback(IntPtr handle, IntPtr data)
   at GLib.Signal.voidObjectCallback(IntPtr , IntPtr )
   at Gtk.Application.gtk_main()
   at Gtk.Application.gtk_main()
   at Gtk.Application.Run()
   at Gnome.Program.Run()
   at Beagle.Search.Driver.Main(System.String[] args)
----------------------

** Affects: beagle (Ubuntu)
     Importance: Undecided
         Status: New

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beagle-search dies when collapsing categories
https://bugs.launchpad.net/bugs/277083
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