regex valadition expression formate

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hi

i had the problem with the regex validation ,
i need enter the value in the dollers format like "$9999.99",only numbers and the doller symbol should be appered

basically i had tried but no use use because , iam not able to catch this formate so please help me this

my sample code is asp.net

but its working for the numerics and not for the doller symbol and ,it was allowing only 4 numbers only ,
this is the sample code

<asp:RegularExpressionValidator runat="server" id="rexNumber" controltovalidate="txtNumber" validationexpression="^[0-9]{4}$"  errormessage="Please enter a 4 digit number!" />

please help me

Posted 29-May-11 23:53pm

sivakumarmr10

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3 solutions

Solution 2

check this

^\$?(\d{1,3}(\,\d{3})*|(\d+))(\.\d{2})?$

This will handle below formats

-12000

-12,000

-12000.50

-12,000.50

-12,000,000

-12,000,000.50

-$12000

-$12,000

-$12,000.50

-$12,000,000

-$12,000,000.50

Posted 30-May-11 0:19am

Kiran Sonawane

Solution 3

Try this,

ValidationExpression="^\$(\d{1,3}(\,\d{3})*|(\d+))(\.\d{2})?$"

Posted 30-May-11 0:28am

N!dh!sh

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OriginalGriff · Accepted Answer · 2011-05-30T00:02:00

Try:

validationexpression="^\$\d{4}\.\d\d$"

"can you explain the the expression so i can modifiy, because it should allow the symbol and numeric but thers is no rules to be in four digits before the decimal point, any way thanks alot , try to explain it"
It's very similar to yours:

^   Start of string
\$  A dollar sign
\d  A digit
{4} Previous object (in this case a digit) exactly 4 instances
\.  A decimal point
\d  A digit
\d  A digit
$   End of string

Get a copy of Expresso[^] - it's free, it explains Regexes and help you to build and test them. I wish I'd written it!