TextBox Validation for Numeric Data

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Hello,
Can any one please tell me how to validate a textbox using javascript for numeric data. The textbox should allow only numbers and decimal values(for e.g., 23 or 23.5).

Thanks in Advance.

Posted 13-Jul-10 0:16am

bedathur_ganesh

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LNogueira · Answer 1 · 2010-07-13T00:19:00

Solution 1

You can use Jquery Plugin Validation/[^] to easily achieve what you want.

Posted 13-Jul-10 0:19am

LNogueira

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bedathur_ganesh 13-Jul-10 6:55am

Thanks for the reply.. but, I want it to be implemented using javascript.. Can you please tell me how I can do it?

LNogueira · Answer 2 · 2010-07-13T01:12:00

JQuery is a javascript framework.

If you want pure js use this function on textbox onkeypress event:

<code>function CheckNumeric (e)
{
var key;
key = e.which ? e.which : e.keyCode;
if((key>=48 && key<=57)) {
e.returnValue= true;
}
else
{
alert("please enter Numeric only");
e.returnValue = false;
}
}</code>