a problem of text box text

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In c# form i put a text box. In that text box, i want only type numbers. If we press other buttons, it don't print in the text box. Do anybody knows a method?

Posted 14-Aug-11 19:53pm

Jeremy Shin Woo

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kornakar · Accepted Answer · 2011-08-14T19:58:00

Solution 1

How about using the NumericUpDown control instead?

Or you can check this out: Simple Numeric TextBox[^]

Posted 14-Aug-11 19:58pm

kornakar

Simon Bang Terkildsen · Accepted Answer · 2011-08-14T19:59:00

I would suggest you forget about changing the behavoir of the TextBox and use NumericUpDown
http://msdn.microsoft.com/en-us/library/system.windows.forms.numericupdown.aspx[^]

If you absolutely need a TextBox for some reason, then you can handle the KeyPress[^] event

C#

private void MyTextBox_KeyPress(object sender, KeyPressEventArgs e)
{
    e.Handled = !char.IsDigit(e.KeyChar); 
}

Jeremy Shin Woo · Accepted Answer · 2011-08-14T19:59:00

Solution 3

C#

private void tbxHeightBackImage_KeyPress(object sender, KeyPressEventArgs e)
        {
            e.Handled = !char.IsDigit(e.KeyChar) && !char.IsControl(e.KeyChar);

        }

Posted 14-Aug-11 19:59pm