ribbon.cs

public partial class Form1 : TXTextControl.Windows.Forms.Ribbon.RibbonForm
{
    public Form1()
    {
        InitializeComponent();

        textControl1.InputPositionChanged += TextControl1_InputPositionChanged;
        textControl1.FrameSelected += TextControl1_FrameSelected;
        textControl1.FrameDeselected += TextControl1_FrameDeselected;
        textControl1.DrawingActivated += TextControl1_DrawingActivated;
        textControl1.DrawingDeselected += TextControl1_DrawingDeselected;
    }

    private void TextControl1_DrawingDeselected(object sender,
        TXTextControl.DataVisualization.DrawingEventArgs e)
    {
        if ((textControl1.Frames.GetItem() == null) &&
            (textControl1.Drawings.GetActivatedItem() == null))
        {
            m_grpFrameTools.Visible = false;
        }
    }

    private void TextControl1_DrawingActivated(object sender, 
        TXTextControl.DataVisualization.DrawingEventArgs e)
    {
        m_grpFrameTools.Visible = true;
    }

    private void TextControl1_FrameDeselected(object sender, 
        TXTextControl.FrameEventArgs e)
    {
        if ((textControl1.Frames.GetItem() == null) &&
            (textControl1.Drawings.GetActivatedItem() == null))
        {
            m_grpFrameTools.Visible = false;
        }
    }

    private void TextControl1_FrameSelected(object sender, 
        TXTextControl.FrameEventArgs e)
    {
        m_grpFrameTools.Visible = true;
    }

    private void TextControl1_InputPositionChanged(object sender, EventArgs e)
    {
        m_grpTableTools.Visible = textControl1.Tables.GetItem() != null;
    }
}