keyPress event in C#

Windows Forms processes keyboard input by raising keyboard events in response to Windows messages. Most Windows Forms applications process keyboard input exclusively by handling the keyboard events.

How do I detect keys pressed in C#

You can detect most physical key presses by handling the KeyDown or KeyUp events. Key events occur in the following order:

                                                         

                              KeyDown

                                              KeyPress

                                              KeyUp

How to detect when the Enter Key Pressed in C#

The following C# code behind creates the KeyDown event handler. If the key that is pressed is the Enter key, a MessegeBox will displayed .

  if (e.KeyCode == Keys.Enter)

  {

            MessageBox.Show("Enter Key Pressed ");

  }

Example...................

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 keypressevents

{

    public partial class Form1 : Form

    {

        public Form1()

        {

            InitializeComponent();

        }

      

        private void Form1_Load(object sender, EventArgs e)

        {

        }

        private void textBox1_KeyPress(object sender, KeyPressEventArgs e)

        {

            int asc = (int)e.KeyChar;

            if (Char.IsDigit(e.KeyChar) == false && asc!=8)

            {

                e.Handled = true;

            }

        }