XmlBinaryReaderSession.TryLookup Method (Int32, XmlDictionaryString%)
Microsoft Silverlight will reach end of support after October 2021. Learn more.
Checks whether the internal collection contains an entry with a specified key.
Namespace:  System.Xml
Assembly:  System.Runtime.Serialization (in System.Runtime.Serialization.dll)
Syntax
'Declaration
Public Function TryLookup ( _
    key As Integer, _
    <OutAttribute> ByRef result As XmlDictionaryString _
) As Boolean
public bool TryLookup(
    int key,
    out XmlDictionaryString result
)
Parameters
- key
 Type: System.Int32
 The key to match.
- result
 Type: System.Xml.XmlDictionaryString%
 The XmlDictionaryString, if found; otherwise, nulla null reference (Nothing in Visual Basic).
Return Value
Type: System.Boolean
true if an entry that matches the key was found; otherwise, false.
Implements
Exceptions
| Exception | Condition | 
|---|---|
| ArgumentNullException | key is nulla null reference (Nothing in Visual Basic). | 
Version Information
Silverlight
Supported in: 5, 4
Platforms
For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.