/// <summary>
/// When Document Property Changed, the new Document needs to attached the event handlers of all comboboxes
/// withing then new Document, and dettach handlers in old document.
/// </summary>
/// <param name="sender"></param>
/// <param name="args"></param>
private static void DocumentPropertyChanged(DependencyObject sender, DependencyPropertyChangedEventArgs args)
{
RichTextBoxWithIntellisense textBox = sender as RichTextBoxWithIntellisense;
if (textBox != null)
{
FlowDocument oldDocument = args.OldValue as FlowDocument;
if (oldDocument != null)
{
textBox.DettachEventHandlersFromAllComboBoxes(oldDocument);
}
FlowDocument newDocument = args.NewValue as FlowDocument;
if (newDocument != null)
{
textBox.AttachEventHandlersToAllComboBoxes(newDocument);
}
textBox.IsTextDirty = false;
}
}
