之前用到的一段代码,记录一下

1     public static class ObservableExtension 2     { 3         public static void Sort
     
      (this Collection
      
        source, Func
       
         keySelector) 4         { 5             List
        
          sortedList = source.OrderBy(keySelector).ToList(); 6             source.Clear(); 7             foreach (var sortedItem in sortedList) 8                 source.Add(sortedItem); 9         }10 11         public static void Sort
         
          (this ObservableCollection
          
            collection) where T : IComparable12 {13 List
           
             sortedList = collection.OrderBy(x => x).ToList();14 for(int i = 0;i