How to make TextBox lose its focus in Windows Phone 8.1?

This method is ugly but it works. The key part is IsTabStop property. If I don’t touch it – the keyboard disappers for a fraction of a second and reapears again.

Makes virtual keyboard disappear when user taps enter key.

You just need to call the LostFocus method and pass the name of the TextBox control as a parameter to make it lose focus.