Parameters

key

The key of the element to get or set. [Edit]

Value

The element with the specified key. [Edit]

Exceptions

Type	Reason
ArgumentNullException	key is null. [Edit]
NotSupportedException	The property is set and the current instance is read-only. The property is set, key does not exist in the collection, and the current instance has a fixed size. [Edit]

Remarks

Note: This property provides the ability to access a specific element in the collection by using the following syntax: myCollection[index].

Operation

When setting this property, if the specified key already exists in the current instance, the value is required to be replaced; otherwise, a new element is required to be created.

[Edit]

Requirements

Namespace: System.Collections
Assembly: mscorlib (in mscorlib.dll)
Assembly Versions: 1.0.5000.0, 2.0.0.0