How to make a Textbox only take numbers?

[dipuks]

I made a C# application and i want the Textbox control to just take numbers and no characters. In VC++ this can be easily done by setting a property. Any idea how to do this in C#? Thanks

[Giorgi Dalakishvili]

Handle the keypress event and check input

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[sxbluebird]

this is easy thing. you can set as : this.textBox1.KeyPress += new System.Windows.Forms.KeyPressEventHandler(this.textBox1_KeyPress); private void textBox1_KeyPress(object sender, System.Windows.Forms.KeyPressEventArgs e) { if ( !( char.IsDigit( e.KeyChar ) ) ) { e.Handled = true; } }

roger wong msn:wenmianbj@hotmail.com

[Revathij]

U can use Regular Expression Validation control. Validation Control will not allow other characters except numbers by setting the expression as ^[0-9]+$ in validation control

[dipuks]

The method you suggested works. Thanks. One problem now is that the "Backspace" button no more works inside the text box. Any idea why thats happening? "Delete" button works.