InstantForum 2017-1 FinalMillisecond Forumshttps://forums.millisecond.com/Millisecond ForumsSat, 19 Sep 2026 00:00:48 GMT20https://forums.millisecond.com/Topic15208.aspxI want to constrain the participant input in a textbox to positive integers or zero, and use a corresponding mask "positiveintegerorzero."<br/>However, it does not work if one uses a comma as a decimal separator (as people here in Europe do), and inputs such as 0,500 are happily accepted.<br/>This is not a major problem, but if anyone knows a quick solution (to use a regular expression?), I'd like to see it.<br/><br/>Thanks,<br/><br/>Tue, 16 Dec 2014 05:51:24 GMTteilaihttps://forums.millisecond.com/Topic15212.aspxYes, a regular expression in the /mask attribute should do the trick:<br/><br/>/ mask = ^[0-9]+$<br/>Tue, 16 Dec 2014 05:51:24 GMTDave