log4net SDK Reference |

# EmptyDictionary.Item Property

Gets or sets the element with the specified key.

[Visual Basic]
NotOverridable Public Default Property Item( _
ByVal key As Object _
) _
Implements IDictionary.Item
As Object _
Implements IDictionary.Item
[C#]
public object this[
object key
] {get; set;}

#### Parameters

key
  The key of the element to get or set.

#### Property Value

`null`

#### Implements

IDictionary.Item

#### Remarks

As the collection is empty no values can be looked up or stored. If the index getter is called then `null` is returned. A InvalidOperationException is thrown if the setter is called.

#### Exceptions

Exception Type | Condition
--- | ---
InvalidOperationException | This dictionary is always empty and cannot be modified.

#### See Also

EmptyDictionary Class | log4net.Util Namespace