/// <summary>
/// When a keyword is selected from the grid or the visualizator, we update RTB
/// to display the sentences containing the keyword and also the keyword relationship visualization.
/// </summary>
public void ShowKeywordSelection(string keyword)
{
textboxEventsEnabled = false;
ShowSentences(keyword);
textboxEventsEnabled = true;
rtbSentences.SelectionStart = 0;
surface.NewKeyword(keyword);
UpdateKeywordVisualization();
}
