Allow only negative and positive no in textbox

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C#

Hi ,

How to allow to input only negative and positive number in a textbox in C#.

Thanks & Regards

Mohd Wasif

Posted 28-Nov-12 4:13am

Mohd Wasif

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Akinmade Bond 28-Nov-12 10:18am

WinForm or WPF?

Pete O'Hanlon 28-Nov-12 10:24am

What technology are you using? ASP.NET? Windows Forms? WPF?

Mohd Wasif 29-Nov-12 5:05am

in Silver light

1 solution

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Ravi Bhavnani · Answer 1 · 2012-11-28T04:26:00

Solution 1

One way to do this would be to handle the TextChanged event, parse the text to see if it passes your test, and update the Text property of the TextBox if necessary.

/ravi

Posted 28-Nov-12 4:26am

Ravi Bhavnani