IsolatedStorageSettings.IDictionary<String, Object>.ContainsKey Method
Microsoft Silverlight will reach end of support after October 2021. Learn more.
This API supports the .NET Framework infrastructure and is not intended to be used directly from your code.
For a description of this member, see IDictionary<TKey, TValue>.ContainsKey.
Namespace: System.IO.IsolatedStorage
Assembly: System.Windows (in System.Windows.dll)
Syntax
'Declaration
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<TKey, TValue> contains an element with the specified key; otherwise, false.
Implements
Exceptions
| Exception | Condition |
|---|---|
| ArgumentNullException | key is nulla 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<TKey, TValue> interface.
Version Information
Silverlight
Supported in: 5, 4, 3
Silverlight for Windows Phone
Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0
Platforms
For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.