Restrict TextBoxField to accept only numeric values in BlackBerry
Question
How can I restrict a TextBoxField in BlackBerry to accept only numeric values . I'm new to BB world and would like to know if there is any control like a NumericTextbox in asp.net that I can use with BB? Also from what I read through some blogs and documents , regex is not supported in BB. So how can I achieve this without Regex?
Thanks in advance
2 answers
solution1
3 ACCPTED 2013-01-01 14:44:02
Use a BasicEditField , or any of it's subclasses, include the FILTER_NUMERIC in the style parameter of the constructor:
BasicEditField numericField = new BasicEditField(FILTER_NUMERIC);
For more on using text filters see this article .
solution2
0 2013-01-01 14:40:36
You can check this in javascript
<script language=Javascript>
function isNumberKey(evt)
{
var charCode = (evt.which) ? evt.which : event.keyCode
if (charCode > 31 && (charCode < 48 || charCode > 57))
return false;
return true;
}
</script>
<html>
<body>
<form action="url" method="get/post">
<input id="txtChar" onkeypress="return isNumberKey(event)" type="text" name="txtChar" />
<input type="submit" name="submit" value="Submit" />
</form>
</body>
</html>
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