KeyEventArgs in C#

Question

I have a problem to how to catch which key is pressed. This is my code, but i cant get what key was pressed. I'm using KeyEventArgs for declaration of new variable and then comparing it.

    private void textBox2_TextChanged(object sender, EventArgs e)
    {
        KeyEventArgs k = null;
        if (e is KeyEventArgs)
        {
            k = (KeyEventArgs)e;
        }

        if (k.KeyCode == Keys.Enter)
        {
            // do something here
        }


    }

score 3 · Answer 1 · answered Apr 01 '13 at 15:40

3

TextChanged won't give you a KeyEventArgs. You want KeyUp, KeyDown or KeyPress instead. KeyPress gives you KeyPressEventArgs instead.

answered Apr 01 '13 at 15:40

Daniel A. White

187,200
47
362
445

Thanks, and how can i implement it in my function? – Dimitry Abramiani Apr 01 '13 at 15:43
@DimitryAbramiani you can't inside the `TextChanged` event. You have to bind to one of those others. – Daniel A. White Apr 01 '13 at 15:43

score 3 · Accepted Answer · answered Apr 01 '13 at 15:46

3

You need to add:

 [component_name].KeyDown += new System.Windows.Forms.KeyEventHandler(this.Key_Pressed_Method);

into the constructor of your Form. Then, you can define what you want to do in Key_Pressed_Method() method.

answered Apr 01 '13 at 15:46

fatihk

7,789
1
26
48

KeyEventArgs in C#

2 Answers2

Linked