SortedDictionary<TKey, TValue> Constructor ()
Initializes a new instance of the SortedDictionary<TKey, TValue> class that is empty and uses the default IComparer<T> implementation for the key type.
Assembly: System (in System.dll)
Every key in a SortedDictionary<TKey, TValue> must be unique according to the default comparer.
SortedDictionary<TKey, TValue> requires a comparer implementation to perform key comparisons. This constructor uses the default generic equality comparer Comparer<T>::Default. If type TKey implements the System::IComparable<T> generic interface, the default comparer uses that implementation. Alternatively, you can specify an implementation of the IComparer<T> generic interface by using a constructor that accepts a comparer parameter.
This constructor is an O(1) operation.
The following code example creates an empty SortedDictionary<TKey, TValue> of strings with string keys and uses the Add method to add some elements. The example demonstrates that the Add method throws an ArgumentException when attempting to add a duplicate key.
This code example is part of a larger example provided for the SortedDictionary<TKey, TValue> class.
Available since 8
.NET Framework
Available since 2.0
Portable Class Library
Supported in: portable .NET platforms
Windows Phone Silverlight
Available since 8.0
Windows Phone
Available since 8.1