ASP.NET: produce an error message when a non-numeric value is entered in a textbox?

Posted by ilkdrl on Stack Overflow See other posts from Stack Overflow or by ilkdrl
Published on 2010-05-09T15:16:41Z Indexed on 2010/05/10 4:08 UTC
Read the original article Hit count: 392

Filed under:

c#

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webforms

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string

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textbox

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ASP.NET

If a user enters a non-numeric value into a TextBox and presses a Button, I want to show an error message on a Label.

How can I achieve this?

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