SortedList.ContainsKey Method (Object)
Determines whether a SortedList object contains a specific key.
Assembly: mscorlib (in mscorlib.dll)
The elements of a SortedList object are sorted by the keys either according to a specific IComparer implementation specified when the SortedList is created or according to the IComparable implementation provided by the keys themselves.
This method behaves exactly as the Contains method.
This method uses a binary search algorithm; therefore, this method is an O(log n) operation, where n is Count.
Starting with the .NET Framework 2.0, this method uses the collection’s objects’ Equals and CompareTo methods on item to determine whether item exists. In the earlier versions of the .NET Framework, this determination was made by using the Equals and CompareTo methods of the item parameter on the objects in the collection.
Available since 10
Available since 1.1