ReadOnlyDictionary<TKey, TValue>.IDictionary.Add Method (Object, Object)

.NET Framework (current version)

Throws a NotSupportedException exception in all cases.

Namespace:   System.Collections.ObjectModel
Assembly:  mscorlib (in mscorlib.dll)

void IDictionary.Add(
	object key,
	object value


Type: System.Object

The key of the element to add.

Type: System.Object

The value of the element to add.

Exception Condition

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 interface. The IDictionary 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
Return to top