check money in regex

Posted on 2013-01-30
Last Modified: 2013-02-14
I want to check if it is a good $ amount and txtpriceamount can not be blank.  It could also be a negative number.  txtpriceamount is required.

10.00 yes
1.00 yes
0.00 yes
0.02 yes
0.00 yes

-10.00 yes
-1.00 yes
-0.00 yes
-0.02 yes
-0.00 yes

1 no
text is no

 <asp:TextBox ID="txtpriceamount" runat="server"></asp:TextBox>
              &nbsp;<asp:RegularExpressionValidator ID="RegularExpressionValidator1" runat="server"
                    ControlToValidate="txtpriceamount" ErrorMessage="Incorrect Amount" ValidationExpression="^[1-9]+\d*\.\d{2}$"></asp:RegularExpressionValidator>
Question by:VBdotnet2005
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LVL 41

Accepted Solution

guru_sami earned 250 total points
ID: 38837467
Are those the only numbers you want or you want to have any valid money value?

Here's one:

Open in new window

All below will be valid. But it can be adjust to your requirement.


This  will not allow commas:

Open in new window

FYI: Try tool like Expresso for creating/testing regexs..
LVL 29

Assisted Solution

by:Kumaraswamy R
Kumaraswamy R earned 250 total points
ID: 38838398
This worked too.
LVL 41

Expert Comment

ID: 38840617
For the "txtpriceamount can not be blank.":

You simply add a RequireFieldValidator for the textbox in addition to your ReqFieldValidator.

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