From Xojo Documentation
Used to read from or write to the cell based on the row and column numbers passed.
row and column are zero-based. The top-left cell is 0,0. Passing -1 as either the Row or Column number means all rows or all columns, respectively. For example, the following specifies all columns in the last row added using AddRow or AddRowAt:
If you set this equal to a tab-delimited string, you can update the row with one line of code.
This example copies all cells from one ListBox into another:
The destination listbox will have the same number of rows and columns as the source. Header data is not transferred.
In this example, the following code populates a two-column ListBox with the names of the controls in the window and their indexes.