private void _dockPanel_ActiveDocumentChanged(object sender, EventArgs e)
{
if (_lastActiveDockContent != null)
{
if (!_lastActiveDockContent.IsDisposed)
{
_lastActiveDockContent.RaiseShow(NiWindowShow.Deactivate);
}
_lastActiveDockContent = null;
}
_lastActiveDockContent = (DockContent)_dockPanel.ActiveDocument;
_windowPaneSelection.ActiveDocument =
_lastActiveDockContent == null
? null
: _lastActiveDockContent.WindowPane;
if (_lastActiveDockContent != null)
{
_lastActiveDockContent.RaiseShow(NiWindowShow.Activate);
}
}