IsolatedStorageSettings.Contains Method
[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]
Determines if the application settings dictionary contains the specified key.
Namespace: System.IO.IsolatedStorage
Assembly: System.Windows (in System.Windows.dll)
Syntax
Public Function Contains ( _
key As String _
) As Boolean
public bool Contains(
string key
)
Parameters
- key
Type: System..::.String
The key for the entry to be located.
Return Value
Type: System..::.Boolean
true if the dictionary contains the specified key; otherwise, false.
Exceptions
| Exception | Condition |
|---|---|
| ArgumentNullException | key is nullNothingnullptra null reference (Nothing in Visual Basic). |
Remarks
Use this method to determine whether a key is present in the dictionary.
Version Information
Windows Phone OS
Supported in: 8.1, 8.0, 7.1, 7.0
Platforms
Windows Phone