Help with a FOR loop and an object array

I need to make a for loop that takes an array of objects that contain the parameters year, type, and model (all ints) and sort by year, then divide the array in all the objects with the same year and sort them by type, then divide the array again into the objects with the same year AND type and sort them by model.

the object a Dress objects, the get methods are get+nameof parameter.

the array is a 1D array called Dresses.

I have made a paralell array to store the value of the parameters and sort that then move the array acording to that sorted array. The problem is in the division of the array.

[626 byte] By [Oscar-Mendeza] at [2007-10-3 4:33:12]