how can I block input in a textbox that is not digits or a dot?

[hampe-92]

Hi guys, long time no see
I'm working on a little project and I want the user to write numbers in a textbox but I want to block anything else than digits and a dot ( . ) how could I do that?
thx in advance

 

[Omni]

Use a Masked Textbox. Look in the Tool box. Then change the format (i think thats the property?) to zip code or whatever.

 

[hampe-92]

Use a Masked Textbox. Look in the Tool box. Then change the format (i think thats the property?) to zip code or whatever.

ahh smart one
thx