regular expression only decimals

Question

1.00/5 (1 vote)

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VB

ASP.NET

Hello everyone,

I need to write a regular expression which will allow numbers like

99.99
100.00

thanx & regard

Posted 13-May-14 3:47am

Member 10251534

Add a Solution

4 solutions

Solution 4

This is for only decimal value

<asp:textbox id="TextBox1" runat="server" ></asp:textbox>
   <asp:regularexpressionvalidator id="RegularExpressionValidator1" runat="server" errormessage="only decimal value" controltovalidate="TextBox1" display="Dynamic" validationexpression="^\d+.\d{2}$" ></asp:regularexpressionvalidator>

Posted 13-May-14 6:30am

sankarsan parida

Updated 13-May-14 6:45am

v2

Solution 1

Try this

var intRegex = /^(?:[1-9]\d*(?:\.\d\d?)?|0\.[1-9]\d?|0\.0[1-9])$/;

In Client Side use JavaScript Code

JavaScript

$('#YourField').change(function () {
        var v = parseFloat(this.value);
        if (isNaN(v)) {
            this.value = '';            
        } else {
            this.value = v.toFixed(2);           
        }
    });

Posted 13-May-14 3:57am

Vi(ky

Updated 13-May-14 4:43am

v3

Comments

Member 10251534 13-May-14 10:29am

sir i want allow only decimal value,not integer value in textbox

Vi(ky 13-May-14 10:39am

you want it client side or server side?

Member 10251534 13-May-14 10:40am

Client Side

Vi(ky 13-May-14 10:41am

Please see the update solution

Solution 2

try with

[0-9]+(\.[0-9][0-9]?)?

OR

^[0-9]+(\.[0-9]{1,2})?$

Posted 13-May-14 4:09am

DamithSL

Updated 13-May-14 4:11am

v2

Comments

Member 10251534 13-May-14 10:29am

sir i want allow only decimal value,not integer value in textbox

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Peter Leow · Accepted Answer · 2014-05-13T05:40:00

Solution 3

try this:

^\d+.\d+$

if you want to limit the decimal place to 2 only, then:

^\d+.\d{2}$

Posted 13-May-14 5:40am

Peter Leow

Updated 13-May-14 5:43am

v2

Comments

Member 10251534 14-May-14 2:21am

thanx dear...