ComponentOne MaskedTextBox™ for WPF provides a text box with a mask that automatically validates the input.
The ComponentOne masked text box control (C1MaskedTextBox) provides a text box with a mask that automatically validates the input. The edit mask enhances the UI by preventing end-users from entering invalid characters into the control.
The masked text box control includes a watermark property, which lets end-users know what type of information is expected.