C#:how to make Esc key to close form

[ssknov]

hi
i need to close the form when esc key is pressed. i tried as below but no response.

private void Form1_KeyPress(object sender, KeyPressEventArgs e)
        {
            if(e.KeyChar==(char)27)
            {
                this.Hide();
            }
        }

thanks in adv
kssk

[mzmishra]

If you are closing the form try close() method

[ssknov]

If you are closing the form try close() method

ya
thats right.

but when i tried as

this.close(); //also it doesnt responds my Esc key press.

ssk

[debasisdas]

Try to handle that in the KeyDown event and also set the KeyPreview property of the form to True.

[vksingh24]

hi
i need to close the form when esc key is pressed. i tried as below but no response.

private void Form1_KeyPress(object sender, KeyPressEventArgs e)
        {
            if(e.KeyChar==(char)27)
            {
                this.Hide();
            }
        }

thanks in adv
kssk

I tried this:

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
 
namespace test
{
    public partial class Form2 : Form
    {
        public Form2()
        {
            InitializeComponent();
        }
 
 
        private void Form2_KeyDown(object sender, KeyEventArgs e)
        {             
            if (e.KeyValue==27)
            {
                this.Hide();
            }            
        }
 
        private void Form2_Load(object sender, EventArgs e)
        {
 
            Form2.ActiveForm.KeyPreview = true;           
 
        }
 
    }
}

Also set the

this.KeyDown += new System.Windows.Forms.KeyEventHandler(Form2_KeyDown);

in the InitializeComponent() of the form

[mkumar20xx]

Just Try This and Let Me Know.

Vb Code
------------

    Protected Overrides Function ProcessCmdKey(ByRef msg As System.Windows.Forms.Message, ByVal keyData As System.Windows.Forms.Keys) As Boolean
        Try
            If msg.WParam.ToInt32 = Convert.ToInt32(Keys.Escape) Then
                Me.Close()
            Else
                Return MyBase.ProcessCmdKey(msg, keyData)
            End If
 
        Catch ex As Exception
            Return False
        End Try
        Return MyBase.ProcessCmdKey(msg, keyData)
    End Function
 

C# Code
------------

        protected override bool ProcessCmdKey(ref System.Windows.Forms.Message msg, System.Windows.Forms.Keys keyData)
        {
            try
            {
        if (msg.WParam.ToInt32() == (int)Keys.Escape)
                {
            this.close();
        }
        else
        {
            return base.ProcessCmdKey(ref msg, keyData);
        }
            }
            catch (Exception Ex )
            {
                MessageBox.Show("Key Overrided Events Error:"+Ex.Message);
            }
            return base.ProcessCmdKey(ref msg,keyData);
    }
 

[tlhintoq]

Basically if the Form1 is not the control that has focus, then the keypress isn't being seen, so its not repsonding. maybe a textbox has focus.

Handling the Window Messaging as mkumar20xx has shown looks to be the better approach. While he gave you a solution, I thought it would be good to *understand* why it was a solution and why your approach wasn't working for you.