internal void SetFocus()
        {
            switch (_CurrentTab)
            {
            case "edit":
                tbEditor.Focus();
                break;

            case "preview":
                rdlPreview.Focus();
                break;

            case "design":
                dcDesign.SetFocus();
                break;
            }
        }
        internal void SetFocus()
        {
            switch (_CurrentTab)
            {
            case DesignTabs.Edit:
                scintilla1.Focus();
                break;

            case DesignTabs.Preview:
                rdlPreview.Focus();
                break;

            case DesignTabs.Design:
                dcDesign.SetFocus();
                break;
            }
        }