private static void OnCaptureChanged(DependencyObject d,
DependencyPropertyChangedEventArgs e)
{
TextComboBox textComboBox = d as TextComboBox;
textComboBox.OnCaptureChanged(e);
}
private void BrushComboBox_Selected(object sender, RoutedEventArgs e)
{
TextComboBox comboBox = (TextComboBox)sender;
Image brushImage = (Image)this.FindName("SelectedBrushImage");
ContentControl selectedItem = (ContentControl)comboBox.SelectedItem;
brushImage.Source = ((Image)selectedItem.Content).Source;
}