The Grid Columns dialog box lets you specify the attribute names you want to appear in the columns of the GanttView control. The default visible columns are Task Mode and Task Name, but you can change this default behavior by selecting the required columns from the Check Visible Columns list box.
To Access the Grid Columns dialog box, click the Grid Columns button, 
, in the C1GanttView Toolbar.
The Grid Columns dialog box appears as the following:
