protected override void OnRowActivated(TreePath path, TreeViewColumn column) { base.OnRowActivated(path, column); TreeIter it; TreePath[] sel = Selection.GetSelectedRows(); if (store.GetIter(out it, sel[0])) { ObjectValue val = (ObjectValue)store.GetValue(it, ObjectCol); if (val.Name == DebuggingService.DebuggerSession.EvaluationOptions.CurrentExceptionTag) { DebuggingService.ShowExceptionCaughtDialog(); } } }