If one sets an empty RadPropertyStore to the SelectedObject property of a RadPropertyGrid and then adds items with a RadSortOrder attribute the items will still be sorted by their name.



WORKAROUNDS:

1. Populate the store before you set it to the property grid.

2. Add a dummy item to the store before you set it to the property grid and then remove it:
RadPropertyStore store = new RadPropertyStore();
store.Add(typeof(bool), "dummy", false);
this.radPropertyGrid1.SelectedObject = store;
store.RemoveAt(0);

3. After you add the first item to the store call the following method:
this.radPropertyGrid1.PropertyGridElement.PropertyTableElement.ListSource.CollectionView.EnsureDescriptors();