ReadOnlyDictionary<(Of <(TKey, TValue>)>).ICollection<(Of <(KeyValuePair<(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.
Namespace: System.Collections.ObjectModel
Assembly: mscorlib (in mscorlib.dll)
Syntax
Private Sub Add ( _
item As KeyValuePair(Of TKey, TValue) _
) Implements ICollection(Of KeyValuePair(Of TKey, TValue)).Add
void ICollection<KeyValuePair<TKey, TValue>>.Add(
KeyValuePair<TKey, TValue> item
)
Parameters
- item
Type: System.Collections.Generic..::.KeyValuePair<(Of <(TKey, TValue>)>)
The object to add to the dictionary.
Implements
ICollection<(Of <(T>)>)..::.Add(T)
Exceptions
| Exception | Condition |
|---|---|
| NotSupportedException | In all cases. |
Remarks
This member is an explicit interface member implementation. It can be used only when the ReadOnlyDictionary<(Of <(TKey, TValue>)>) instance is cast to an ICollection<(Of <(T>)>) interface. The ICollection<(Of <(T>)>) interface specifies that the Add method should throw a NotSupportedException exception if the collection that implements the interface is read-only.
Version Information
Windows Phone OS
Supported in: 8.1, 8.0