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.
also throws an exception if the last call to MoveNext returned false, which indicates the end of the collection.
For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.