Textbox validation - Allows Only Letters

Posted Date: 12 Dec 2008	Resource Type: Code Snippets	Category: C# Syntax
Author: KR	Member Level: Gold
Rating:	Points: 5

C# Win Forms:
------------------
The following steps allows the user to enter only letters (a to z/ A to Z),
-> Drag and drop textbox from toolbox to form
-> Register Textbox KeyPressEvent

Code:
--------

Using System;
using System.Windows.Forms;
using System.Text;

namespace WindowsApplication1
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}

// Textbox KeyPress event block
private void textBox1_KeyPress(object sender, KeyPressEventArgs e)
{
// Allows only letters
if (!(Char.IsLetter(e.KeyChar) || Char.IsControl(e.KeyChar)))
e.Handled = true;
}
}
}

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