WebListBox.RowTagAt
From Xojo Documentation
Method
Allows you to get or set the Variant value associated with the row at the Index passed.
Notes
Passing an index that is outside the bounds of the rows and/or columns will result in an OutOfBoundsException.
Sample Code
This example sets the row tag at row 0, to the object Employee, an instance of a class:
ListBox1.RowTagAt(0) = Employee
See Also
Variant type.