ReadOnlyDictionary(Of TKey, TValue).IDictionary(Of TKey, TValue).Add Method
[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]
Throws a NotSupportedException exception in all cases.
Assembly: mscorlib (in mscorlib.dll)
'Declaration Private Sub Add ( _ key As TKey, _ value As TValue _ ) Implements IDictionary(Of TKey, TValue).Add
Parameters
- key
- Type: TKey
The object to use as the key of the element to add.
- value
- Type: TValue
The object to use as the value of the element to add.
Implements
IDictionary(Of TKey, TValue).Add(TKey, TValue)| Exception | Condition |
|---|---|
| NotSupportedException | In all cases. |
This member is an explicit interface member implementation. It can be used only when the ReadOnlyDictionary(Of TKey, TValue) instance is cast to an IDictionary(Of TKey, TValue) interface. The IDictionary(Of TKey, TValue) interface specifies that the Add method should throw a NotSupportedException exception if the collection that implements the interface is read-only.