Use the ListViewGroupCollection.CopyTo(Array, int) method to copy the groups in a collection (including the item references they contain) to a compatible array, starting at a specified index. This is useful, for example, when you want to sort the groups in the collection using the erload:System.Array.Sort method. To do this, copy the groups into a compatible array, then sort the array. Next, use the ListViewGroupCollection.Clear method to remove all the groups from the collection, then use the ListViewGroupCollection.AddRange(ListViewGroup[]) method to add the sorted array back to the collection.

Namespace: System.Windows.Forms
Assembly: System.Windows.Forms (in System.Windows.Forms.dll)
Assembly Versions: 2.0.0.0
Since: .NET 2.0