title: How can I modify the text of a data base field on DrawCell? TcxGrid
body: <p>Previously with the default DBGrid I could alter the value of a cell without altering the data in a database with the following code.</p>
  
  <pre><code>procedure TEMRForm.DBGridCDrawColumnCell(Sender: TObject; const Rect: TRect;
  DataCol: Integer; Column: TColumn; State: TGridDrawState);
  begin
    if Column.FieldName = 'START_DATE' then
    begin
      DBGridC.Canvas.FillRect(Rect);          
      DBGridC.Canvas.TextOut(Rect.Left+2,Rect.Top+2,Column.Field.Text + ' *');
    end;
  end;
  </code></pre>
  
  <p>Which worked great, but I am having trouble implementing this same kind of functionality on a cxgrid.  Here is my current code which shows no indication of the cell value being changed.  </p>
  
  <pre><code>procedure TEMRForm.cxGridCDBTableView1CustomDrawCell(
  Sender: TcxCustomGridTableView; ACanvas: TcxCanvas;
  AViewInfo: TcxGridTableDataCellViewInfo; var ADone: Boolean);
  var
  ARect: Trect;
  begin
    ARect := AViewInfo.Bounds;
    if AViewInfo.Item.Caption = 'Start Date' then
    begin
      ACanvas.FillRect(ARect);
      ACanvas.TextOut(ARect.Left+2,ARect.Top+2,TableC.FieldByName('START_DATE').AsString+' *');
    end;
  end;
  </code></pre>