private void Sort()
{
StoresGrouped.Clear();
var sorted = from store in Stores
orderby store.Country, store.City
group store by store.Country into storeGroup
select new Grouping <string, Store>(storeGroup.Key, storeGroup);
StoresGrouped.ReplaceRange(sorted);
}
private void Sort()
{
StoresGrouped.Clear();
//var sorted = from store in Stores
// orderby store.Country, store.City
// group store by store.Country into storeGroup
// select new Grouping<string, Store>(storeGroup.Key, storeGroup);
var sorted = from store in Stores
orderby store.Name, store.City
group store by store.Name into storeGroup
select new Grouping <string, CommonYelpClass>(storeGroup.Key, storeGroup);
StoresGrouped.ReplaceRange(sorted);
}