c# key events

[Beasts]

I am still learning c# and now i face a problem.
How do make my application do things on keyboard commands?
here is the code i currently use and it does nothing?

        private void Form1_KeyDown(object sender, KeyEventArgs e)
        {
            if (e.Control == true && e.KeyCode == Keys.I)
            {
                label1.Text = "Ctrl + I was pressed";
                // Don't pass message to other controls
                e.Handled = true;
            }
        }

[penagate]

Have you assigned the event handler to the right event? Is it entering the method at all? Place a breakpoint on the if() line and see if it hits it.

[Beasts]

it dosent seem to hit...
no errors no nothing :S

[penagate]

How are you assigning the event handler?

[Beasts]

?
can you put it a little clearly? i am not understanding

[penagate]

Just because you've called it Form1_KeyDown doesn't mean that it'll automatically be called. You need to actually assign it:

public Form1()
{
  // InitializeComponent() etc.

  this.KeyDown += new KeyEventHandler(Form1_KeyDown);
}

private void Form1_KeyDown(...) etc.

[Beasts]

oh i see it now.
That bit of code wasn't there before in my method.
When i add it it works fine. Do I have to add it manually every time for each control?

[penagate]

Per event per control, yes.

[Paul M]

Not all events, lets say you add a button and double click on it. The event handler for the click event will be automatically created. But the rest will need to be added manually.

[penagate]

That's just the designer adding the same line of code, that you could add yourself, to the .designer.cs file.

[mar_zim]

or you could just right click to your form and then properties, click the events button or the lightning icon and there listed all the events. Just assign a name of the events then hit enter.