log4net SDK Reference |

# ReadOnlyPropertiesDictionary.Contains Method

Test if the dictionary contains a specified key

[Visual Basic]
Public Function Contains( _
ByVal key As String _
) As Boolean
[C#]
public bool Contains(
string key
);

#### Parameters

key
  the key to look for

#### Return Value

true if the dictionary contains the specified key

#### Remarks

Test if the dictionary contains a specified key

#### See Also

ReadOnlyPropertiesDictionary Class | log4net.Util Namespace