WPF / C＃上的名称比较是什么意思？

Question

I have a textbox in my xaml --> x:Name="textBoxId" . In the code behind I have used a method OnRoutedEvent(object sender, RoutedEventArgs e) .

I also have used the following:

source == textBoxId

How can I use name comparison instead of object comparison?

What does name comparison mean?

Answer 1

How can I use name comparison instead of object comparison?

You need to cast the source to a FrameworkElement :

private void OnRoutedEvent(object sender, RoutedEventArgs e)
{
    FrameworkElement fe = sender as FrameworkElement;
    if (fe != null && fe.Name == "textBoxId")
    {
        //...
    }
}

There is no real point in doing this though. You might as well compare the references:

private void OnRoutedEvent(object sender, RoutedEventArgs e)
{
    if(sender == textBoxId)
        ...
}

What does name comparison mean?

I guess it means that you are comparing the names of two elements, rather than comparing the element references themselves.