Why KeyDown event doesn't catch “Control” downs?

Question

private void Form1_KeyDown(object sender, KeyEventArgs e)
{
    switch (e.KeyCode)
    {
        case Keys.Up:
            this.Text = "up";
            break;

        case Keys.Down:
            this.Text = "down";
            break;

        case Keys.Left:
            this.Text = "<-";
            break;

        case Keys.Right:
            this.Text = "->";
            break;

        case Keys.Delete:
            this.Text = "delete";
            break;

        case Keys.Control:
            this.Text = "control";
            break;

        case Keys.Control | Keys.C:
            this.Text = "control + c";
            break;

        case Keys.Control | Keys.X:
            this.Text = "control + x";
            break;

        case Keys.Control | Keys.V:
            this.Text = "control + v";
            break;

        default:
            break;
    }
}

Everything that related to holding Control do not displays in form header... This is just code example and not real project. In real project I need to catch Control + C / X / V presses to do copy / paste operations.

Answer 1

try this solution :

case (e.Control && e.KeyCode == Keys.C)

EDIT : if it not works, add paranthesis around your code :

case (Keys.Control | Keys.C):

EDIT 2 : and this one :

e.KeyData == (Keys.Control | Keys.V)

EDIT 3: switch on KeyData

switch (keyData) {
   // Control+ C
   case Keys.Control | Keys.C:
      // ...
      break;
   case Keys.Control | Keys.V:
      // ...
      break;
}