BEurtle.IssueDetail.CommentBody_PreviewKeyDown C# (CSharp) Method

        private void CommentBody_PreviewKeyDown(object sender, PreviewKeyDownEventArgs e)
        {
            if(e.Modifiers==Keys.Control)
                switch (e.KeyCode)
                {
                    case Keys.Z:
                        if (!CommentEdit.Visible) CommentBodyUndo.PerformClick();
                        else SystemSounds.Asterisk.Play();
                        break;
                    case Keys.X:
                        if (!CommentEdit.Visible) CommentBodyCut.PerformClick();
                        else SystemSounds.Asterisk.Play();
                        break;
                    case Keys.C:
                        CommentBodyCopy.PerformClick();
                        break;
                    case Keys.V:
                        if (!CommentEdit.Visible) CommentBodyPaste.PerformClick();
                        else SystemSounds.Asterisk.Play();
                        break;
                    case Keys.A:
                        CommentBodySelectAll.PerformClick();
                        break;
                }
        }