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Allow only Number to textbox

By Satyapriya Nayak Dec 14 2012
In this blog we will know how to allow only numbers to textbox.
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In this blog we will know how to allow only numbers to textbox.

using System;
using
System.Collections.Generic;
using
System.ComponentModel;
using
System.Data;
using
System.Drawing;
using
System.Linq;
using
System.Text;
using
System.Windows.Forms;
namespace
Number_Character_validate_Csharp
{
   
public partial class Form1 : Form
   
{
       
public Form1()
       
{
           
InitializeComponent();
       
}
       
private void textBox1_KeyPress(object sender, KeyPressEventArgs e)
       
{
           
// Number Validation(only Number allowed)

            if (!System.Text.RegularExpressions.Regex.IsMatch(e.KeyChar.ToString(), "\\d+"))
           
{
               
e.Handled = true;
           
}  
       
}
   
}
}