.net - How to make the MaskedTextBox only accept HEX value?

Question

I need a control that only accept HEX value in the following format:

xxxx-xxxx and x is in 0-9, a-f, A-F

So I add a MaskedTextBox and try to edit its Mask property, but did not succeed.

Answer 1

You can't do this out of the box with a MaskedTextBox. If you take a look at the allowed masking elements detailed at the documentation for the Mask property, you'll see that there is no way that you can enforce only hexadecimal input.

You can use a NumericUpDown and set its Hexadecimal property to true, though.