Watermark / hint text / placeholder TextBox

Question

How can I put some text into a TextBox which is removed automatically when user types something in it?

Answer 1

There is an article on CodeProject on how to do it in "3 lines of XAML".

Ok, well it might not be 3 lines of XAML formatted, but it is pretty simple.

One thing to note though, is that it uses a non-standard extension method on the Text property, called "IsEmpty". You need to implement this yourself, however the article doesn't seem to mention that.