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ResourceDictionary.Item Property

Silverlight

Other Versions

Gets the element at the specified index.

Namespace: System.Windows
Assembly: System.Windows (in System.Windows.dll)

Syntax

Copy

public Object this[
	Object key
] { get; set; }

Parameters

key: Type: System.Object
The key of the element to get.

Property Value

Type: System.Object
The object if it exists; otherwise, null.

Implements

IDictionary.Item[Object]

Exceptions

Exception	Condition
NotImplementedException	Attempted to set a value using the indexer.
ArgumentNullException	key is null.
ArgumentException	key is not a string.

Remarks

The main scenario for using the ResourceDictionary is to retrieve resources from a specific Silverlight ResourceDictionary at run time. For more information, see Referencing Resources from Code.

This indexer implementation specifically blocks a "set" usage. If you attempt to set a value using the indexer, an exception is thrown. You must remove and re-add to the ResourceDictionary in order to change a key-value pair.

Version Information