DataGridView, how to capture a cell's KeyPress event for Capturing Enter/Up/Down key

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C#2.0

C#

How to capture the cell's keypress event in datagridview.
i am using following code, but by this code Enter/Down keys are not capturing.

void dataGridView1_EditingControlShowing(object sender,
DataGridViewEditingControlShowingEventArgs e)
        {
            TextBox txtbox = e.Control as TextBox;
            if (txtbox != null)
            {
                txtbox.KeyPress += new
KeyPressEventHandler(txtbox_KeyPress);
            }
        }

        void txtbox_KeyPress(object sender, KeyPressEventArgs e)
        {
            MessageBox.Show(e.KeyChar.ToString());
        }

What to do for capturing Enter/Down/Up key in the cell of data grid view?
Please Help