private void WordUpVertreterHandlingControl_OnIsVisibleChanged(object sender, DependencyPropertyChangedEventArgs e)
{
if (WordUpVertreterHandlerModelInstance == null)
WordUpVertreterHandlerModelInstance = new WordUpVertreterHandlerModel();
WordUpVertreterHandlerModelInstance.ActualizeKlassenAndOrganisationen();
}
private void WordUpVertreterHandlerModelInstanceChanged(WordUpVertreterHandlerModel OldValue,
WordUpVertreterHandlerModel NewValue)
{
}