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how to validate number insert to a textbox field?

Posted on 2004-08-31
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Last Modified: 2010-04-15
I have a textbox in a form where I need to enter the number of users. I need to make sure the person enters a number on that field. How can I validate that field?
code----
<tr>
<td class="NavyBold">Number of Users
<br>
(if multiple users):</td>
<td><asp:textbox id="txtusernumber" Runat="server" Width="50Px" MaxLength="4"></asp:textbox></td>
</tr>
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Question by:devweez
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3 Comments
 
LVL 9

Accepted Solution

by:
msdixon earned 500 total points
ID: 11945781
add this to your page. it should point you in the right direction:

<asp:comparevalidator id="CompareValidator1" style="Z-INDEX: 104; LEFT: 136px; POSITION: absolute; TOP: 32px"
            runat="server" errormessage="Oops" type="Integer" controltovalidate="txtusernumber" valuetocompare="0"
            operator="GreaterThan"></asp:comparevalidator>
0
 

Author Comment

by:devweez
ID: 11948312
Worked like a charm! thank you for the quick turn around on your answer. really helped!
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LVL 9

Expert Comment

by:msdixon
ID: 11948422
no problem
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