private void NewCategoryTextBox_PreviewKeyDown(object sender, KeyEventArgs e)
{
TextBox textbox = sender as TextBox;
if (e.Key == Key.Enter && string.IsNullOrWhiteSpace(textbox.Text) == false)
{
_PlayList.AddMediaClueString(textbox.Text);
textbox.Text = string.Empty;
// Manual update
PlayListClueStringsList.ItemsSource = null;
PlayListClueStringsList.ItemsSource = _PlayList.MediaClueStrings;
// Update List of found documents
DetailedDocumentsList.ItemsSource = _PlayList.GetAllMediasList();
}
}