IsolatedStorageSettings.IDictionary<(Of <(String, Object>)>).ContainsKey Method
This API supports the .NET Framework infrastructure and is not intended to be used directly from your code.
[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]
For a description of this member, see IDictionary<(Of <(TKey, TValue>)>)..::.ContainsKey.
Namespace: System.IO.IsolatedStorage
Assembly: System.Windows (in System.Windows.dll)
Syntax
Private Function ContainsKey ( _
key As String _
) As Boolean Implements IDictionary(Of String, Object).ContainsKey
bool IDictionary<string, Object>.ContainsKey(
string key
)
Parameters
- key
Type: System..::.String
The key for the entry to be located.
Return Value
Type: System..::.Boolean
true if the IDictionary<(Of <(TKey, TValue>)>) contains an element with the specified key; otherwise, false.
Implements
IDictionary<(Of <(TKey, TValue>)>)..::.ContainsKey(TKey)
Exceptions
| Exception | Condition |
|---|---|
| ArgumentNullException | key is nullNothingnullptra null reference (Nothing in Visual Basic). |
Remarks
This member is an explicit interface member implementation. It can be used only when the IsolatedStorageSettings instance is cast to an IDictionary<(Of <(TKey, TValue>)>) interface.
Version Information
Windows Phone OS
Supported in: 8.1, 8.0, 7.1, 7.0
Platforms
Windows Phone