In this example the grid data is stored in a two-dimensional javascript array.
var myData = [
["MSFT","Microsoft Corporation", "314,571.156", "32,187.000"],
["ORCL", "Oracle Corporation", "62,615.266", "9,519.000"],
["SAP", "SAP AG (ADR)", "40,986.328", "8,296.420"],
["CA", "Computer Associates Inter", "15,606.335", "3,164.000"],
["ERTS", "Electronic Arts Inc.", "14,490.895", "2,503.727"]
];
Instead of providing a static text to the grid - you should supply the function, which just returns an array element for a given row and column indices.
obj.setDataProperty("text", function(i,j){return myData[i][j]});