private static void IsReadOnlyWithNavigationPropertyChangedCallback(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
RichTextBoxEx richTextBoxEx = d as RichTextBoxEx;
if (richTextBoxEx != null && richTextBoxEx.IsReadOnlyWithNavigation)
{
richTextBoxEx.IsReadOnly = false;
}
}
private static void ExecutedCopyRoutedCommand(object sender, ExecutedRoutedEventArgs e)
{
RichTextBoxEx richTextBoxEx = sender as RichTextBoxEx;
if (richTextBoxEx != null)
{
richTextBoxEx.Copy();
e.Handled = true;
}
}
private static void ExecutedPasteRoutedCommand(object sender, ExecutedRoutedEventArgs e)
{
RichTextBoxEx richTextBoxEx = sender as RichTextBoxEx;
if (richTextBoxEx != null && !richTextBoxEx.IsReadOnly)
{
if (richTextBoxEx.IsReadOnlyWithNavigation)
{
return;
}
richTextBoxEx.Paste();
}
}
private static void ExecutedCutRoutedCommand(object sender, ExecutedRoutedEventArgs e)
{
RichTextBoxEx richTextBoxEx = sender as RichTextBoxEx;
if (richTextBoxEx != null)
{
if (!richTextBoxEx.IsReadOnly && !richTextBoxEx.IsReadOnlyWithNavigation)
{
richTextBoxEx.Cut();
}
e.Handled = true;
}
}
private static void CanExecuteCopyRoutedCommand(object sender, CanExecuteRoutedEventArgs e)
{
RichTextBoxEx richTextBoxEx = sender as RichTextBoxEx;
if (richTextBoxEx != null)
{
if (richTextBoxEx.IsReadOnly || richTextBoxEx.IsReadOnlyWithNavigation)
{
e.CanExecute = !richTextBoxEx.Selection.IsEmpty;
return;
}
e.CanExecute = !richTextBoxEx.Selection.IsEmpty;
}
}
