numberformat exception

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geeta
numberformat exception
2 Answer(s)      8 years ago
Posted in : Java Beginners
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July 14, 2008 at 3:25 PM


Hi,
To allow only numbers in a textbox, u can handle it using javascript:

Use the follow function in javascript:
function isNumberKey(evt)
{
var charCode = (evt.which) ? evt.which : event.keyCode;

if (charCode > 31 && (charCode < 48 || charCode > 57)){
return false;}
return true;
}

Call the above function as follows:
<input type="text" name="txtId" onkeypress="return isNumberKey(window.event)">

I think it will work fine

Thanks
Sreenivas.


July 14, 2008 at 3:43 PM


its fine..
if i use Long.ParseLong(String)[String is no.s get from textfield], after entering 20 no.s, getting NumberFormat Exception.
How can i handle that?

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