Adds the specified item to the collection.
Namespace:  System.Web.Mvc
Assembly:  System.Web.Mvc (in System.Web.Mvc.dll)
Syntax
'Declaration
Public Sub Add ( _
    item As KeyValuePair(Of String, Object) _
)
public void Add(
    KeyValuePair<string, Object> item
)
public:
virtual void Add(
    KeyValuePair<String^, Object^> item
) sealed
Parameters
- item
 Type: System.Collections.Generic.KeyValuePair<String, Object>
 The object to add to the collection.
Implements
Exceptions
| Exception | Condition | 
|---|---|
| NotSupportedException | The collection is read-only. |