Gets the key of the current dictionary entry.
Assembly: mscorlib (in mscorlib.dll)
After an enumerator is created or after the Reset method is called, the MoveNext method must be called to advance the enumerator to the first element of the collection before reading the value of the property; otherwise, is undefined.
MoveNext returned false, which indicates the end of the collection.also throws an exception if the last call to
Available since 4.5
Available since 1.1
Portable Class Library
Supported in: portable .NET platforms
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Available since 8.1