Dictionary<TKey, TValue>::IDictionary::Keys Property
Gets an ICollection containing the keys of the IDictionary.
Assembly: mscorlib (in mscorlib.dll)
private: property ICollection^ Keys { virtual ICollection^ get() sealed = IDictionary::Keys::get; }
Property Value
Type: System.Collections::ICollection^An ICollection containing the keys of the IDictionary.
Implements
IDictionary::KeysThe order of the keys in the returned ICollection is unspecified, but it is guaranteed to be the same order as the corresponding values in the ICollection returned by the Values property.
Getting the value of this property is an O(1) operation.
The following code example shows how to use the IDictionary::Keys property of the System.Collections::IDictionary interface with a Dictionary<TKey, TValue>, to list the keys in the dictionary. The example also shows how to enumerate the key/value pairs in the dictionary; note that the enumerator for the System.Collections::IDictionary interface returns DictionaryEntry objects rather than KeyValuePair<TKey, TValue> objects.
The code example is part of a larger example, including output, provided for the IDictionary::Add method.
Available since 8
.NET Framework
Available since 2.0
Portable Class Library
Supported in: portable .NET platforms
Silverlight
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Windows Phone
Available since 8.1