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ReadOnlyDictionary<TKey, TValue>::IDictionary<TKey, TValue>::Add Method (TKey, TValue)
.NET Framework (current version)
Throws a NotSupportedException exception in all cases.
Assembly: mscorlib (in mscorlib.dll)
| Exception | Condition |
|---|---|
| NotSupportedException | In all cases. |
This member is an explicit interface member implementation. It can be used only when the ReadOnlyDictionary<TKey, TValue> instance is cast to an IDictionary<TKey, TValue> interface. The IDictionary<TKey, TValue> interface specifies that the Add method should throw a NotSupportedException exception if the collection that implements the interface is read-only.
Universal Windows Platform
Available since 8
.NET Framework
Available since 4.5
Portable Class Library
Supported in: portable .NET platforms
Windows Phone Silverlight
Available since 8.0
Windows Phone
Available since 8.1
Available since 8
.NET Framework
Available since 4.5
Portable Class Library
Supported in: portable .NET platforms
Windows Phone Silverlight
Available since 8.0
Windows Phone
Available since 8.1
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