GridDimension is a text function that returns the name of a dimension on a grid's page, column, or row axis.
<<GridDimension("GridName", "Axis", index)>>
A shared grid, named mygrid, has several dimensions on each row, column, and page axes, and displays the name of the first dimension on the row axis in a text box. Because the dimension may change in the future, you use the GridDimension function in the text box. Type the following in the text box:
This report is based on the <<GridDimension("mygrid","Row",1)>> dimension.