C# 鍵盤 KeyChar 值的取得

private void textBox1_KeyPress(object sender, KeyPressEventArgs e)
        ...{
            char Key_Char = e.KeyChar;//判斷按鍵的 Keychar
            MessageBox.Show(((int)(Key_Char)).ToString());//轉成整數顯示
        }

Key Char

1	2	3	4	5	6	7	8	9	0	Enter	a
49	50	51	52	53	54	55	56	57	58	13	97