/// <summary>
/// 删除书源
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void Delete_Click(object sender, RoutedEventArgs e)
{
BookSource bookSource = ListSource.SelectedItem as BookSource;
if (bookSource != null && bookSource is BookSource)
{
if (MessageBox.Show("确定要删除书源【" + bookSource.Title + "】？ 本操作不可以逆转，请谨慎操作~", "提示", MessageBoxButton.YesNo, MessageBoxImage.Exclamation) == MessageBoxResult.Yes)
{
DataFetch.DeleteBookSource((int)bookSource.Id);
}
}
}