how to catch an enter key event in c# windows application rather than using a graphical button

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C#

how to catch an enter key event in c# Windows apllication rather than using a graphical button?

Posted 22-Jan-14 3:22am

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Pete O'Hanlon 22-Jan-14 12:06pm

Are you using Windows Forms or WPF? The solution is different depending on what framework you are coding your app for.

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Karthik_Mahalingam · Accepted Answer · 2014-01-22T03:28:00

Solution 1

use key down[^] event

C#

private void Form1_KeyDown(object sender, KeyEventArgs e)
       {
           if (e.KeyCode == Keys.Enter)
           {
               MessageBox.Show("Enter key pressed");
           }
       }

Posted 22-Jan-14 3:28am

Karthik_Mahalingam

Comments

Rahul VB 22-Jan-14 14:01pm

5+ "MOM", great. Its like you read my mind, i will not post any thing.

Karthik_Mahalingam 22-Jan-14 20:34pm

Thanks Rahul :)

Praveen_P 23-Jan-14 1:58am

5

Karthik_Mahalingam 23-Jan-14 2:05am

Thanks Praveen :)

BillWoodruff · Accepted Answer · 2014-01-22T04:36:00

If you want to catch the 'Enter KeyDown Event for the entire Form ... before any of the Controls on the Form receive the KeyDown Event:

1. set the Form's KeyPreview Property to 'true

2. wire-up an EventHandler for the Form's KeyDown Event:

C#

private bool IsEnterSeen = false;

private void Form1_KeyDown(object sender, KeyEventArgs e)
{
    IsEnterSeen = e.KeyCode == Keys.Enter;

    // take action here if 'IsEnterSeen == 'true

}

If you want to get the 'Enter KeyPress Event for the entire Form, and you want to cancel the further processing of the 'Enter key:

C#

private char enterChar = (char)13;

private void Form1_KeyPress(object sender, KeyPressEventArgs e)
{
    IsEnterSeen = e.KeyChar == enterChar;

    // take action here if 'IsEnterSeen == 'true

    // to cancel further processing of the Enter Key:
    // if(IsEnterSeen) e.Handled = true;

}