how to make textbox accepts only numbers

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C#5.0

e.Handled = !(Char.IsDigit(e.KeyChar) || e.KeyChar == '\b' || e.KeyChar == '.');

Posted 29-Mar-15 11:18am

MeftahDAKHEEL

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Peter Leow · Accepted Answer · 2015-03-29T14:51:00

Solution 1

Refer: How to: Create a Numeric Text Box[^]

Posted 29-Mar-15 14:51pm

Peter Leow

Comments

MeftahDAKHEEL 31-Mar-15 1:25am

@peter, thanks for your kind solution, but when made a numeric class, i face this error as follow:
Error 1 The type or namespace name 'NumberFormatInfo' could not be found (are you missing a using directive or an assembly reference?) C:\Users\Bisan\Documents\Visual Studio 2010\Projects\Graduation System\Graduation System\NumericTextBox.cs 21 9 Graduation System

Peter Leow 31-Mar-15 1:36am

It was stated in the "Compiling the Code" section, it needs this namespace:
using System.Globalization;

MeftahDAKHEEL 31-Mar-15 1:53am

i wish you great morning Peter, thanks a lot, i am new to C# this is my graduation project Information System Diploma

Peter Leow 31-Mar-15 2:06am

You are welcome.