Keypress To Simulate A Button Click in C#

Question

Ok, so I'm in the process of making a Tic-Tac-Toe game to help me learn C#. I'm attempting to add a bit of functionality to it, so I want people to be able to use the NumPad on a computer to simulate clicking the buttons.

Here is what I have but when I use the NumPad the buttons don't click. Can any of you see a reason as to why?

    //===============================
    // start NumPad Simulate Clicks
    //   NumPad  MyButtons
    //   7 8 9   1 2 3
    //   4 5 6   4 5 6 
    //   1 2 3   7 8 9
    //===============================
    public void myControl_NumPad7(object sender, KeyPressEventArgs e)
    {
        if (e.KeyChar == (char)Keys.NumPad7)
        {
            button1_Click(null, null);
        }
    }
    public void myControl_NumPad8(object sender, KeyPressEventArgs e)
    {
        if (e.KeyChar == (char)Keys.NumPad8)
        {
            button2_Click(null, null);
        }
    }
    public void myControl_NumPad9(object sender, KeyPressEventArgs e)
    {
        if (e.KeyChar == (char)Keys.NumPad9)
        {
            button3_Click(null, null);
        }
    }
    public void myControl_NumPad4(object sender, KeyPressEventArgs e)
    {
        if (e.KeyChar == (char)Keys.NumPad4)
        {
            button4_Click(null, null);
        }
    }
    public void myControl_NumPad5(object sender, KeyPressEventArgs e)
    {
        if (e.KeyChar == (char)Keys.NumPad5)
        {
            button5_Click(null, null);
        }
    }
    public void myControl_NumPad6(object sender, KeyPressEventArgs e)
    {
        if (e.KeyChar == (char)Keys.NumPad6)
        {
            button6_Click(null, null);
        }
    }
    public void myControl_NumPad1(object sender, KeyPressEventArgs e)
    {
        if (e.KeyChar == (char)Keys.NumPad1)
        {
            button7_Click(null, null);
        }
    }
    public void myControl_NumPad2(object sender, KeyPressEventArgs e)
    {
        if (e.KeyChar == (char)Keys.NumPad2)
        {
            button8_Click(null, null);
        }
    }
    public void myControl_NumPad3(object sender, KeyPressEventArgs e)
    {
        if (e.KeyChar == (char)Keys.NumPad3)
        {
            button9_Click(null, null);
        }
    }

Answer 1

EDIT
Noticed that I have to be clearer about what I mean...

From the code you posted I suspect you have 9 controls you added your key-events to. These controls will only receive key-events when they are focused.

To handle keys globally for the form, you have to set Form.KeyPreview to true . Also, I'd not handle the keys the way you do, but add a Form.KeyDown event and write something like:

switch (e.KeyCode)
{
    case Keys.NumPad9:
        e.Handled = true;
        button3.PerformClick();
        break;
    case Keys.NumPad8:
        e.Handled = true;
        button2.PerformClick();
        break;
    // And so on
}

This will handle the NumPad-Keys within the form - you can then remove all the event handlers you posted in your question.

To programatically "click" a button, you should use the Button.PerformClick() method, as more than one event handler may be added to the click event, which would not be called otherwise.

EDIT 2
Syntax for the switch -statement was invalid. Of course every "case" must start with the case keyword... Now it should work.

Answer 2

You need to use button1.PerformClick(); for every button to invoke event correctly, here's info .