Regex for any type of numeric value

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Hi,everyone

Question: i have one text-box and i want to allow only numeric value to this text-box like i.e .2,2.3,23.233

Solution: For the above, i already try regex ("^\s*(?=.*[1-9])\d*(?:\.\d{1,4})?\s*$")
but still it can`t be allow after point value like example(".2")

so, i need to know that their are any other solutions available .....please help me to get-out of it

Posted 26-May-15 3:40am

Amit Samnani

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Sergey Alexandrovich Kryukov 26-May-15 9:59am

Why Regex?
What are you trying to achieve, ultimately?
—SA

2 solutions

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_Asif_ · Accepted Answer · 2015-05-26T04:11:00

Solution 1

Try this "\d+(\.\d+)?". You can find plenty of examples over the net. Just Google!

Posted 26-May-15 4:11am

_Asif_

Bernhard Hiller · Accepted Answer · 2015-05-26T07:08:00

Solution 3

Better use

C#

double val;
if (double.TryParse(YourTextbox.Text, out val))
{
    //OK
}
else
{
    //not numeric
}

That strategy will also cope with different regional settings (what about a decimal comma instead of a decimal point?).

Posted 26-May-15 7:08am

Bernhard Hiller

Comments

[no name] 27-May-15 3:53am

My dear friend Brenhard hiller,

At some point your consult is right but i want to allow point decimal value like(.2)in my textbox and i only use reg-ex using data annotation with mvc.