How can I use a MaskedTextBox to prevent the user from entering an invalid IP address? (I want it to behave just like the Windows one).
I made an IP masked textbox that mimicks the Windows one.
Has the same width, height, prevents users from entering >255 values, jumps boxes, etc, etc... If you still need it and want to try it out it's here:
https://github.com/RuvenSalamon/IP-MaskedTextBox
(I don't know if this counts as self promotion but it's open-source so I reckon it's ok.)