Export (0) Print
Expand All

XmlSerializer.CanDeserialize Method

Gets a value that indicates whether this XmlSerializer can deserialize a specified XML document.

Namespace:  System.Xml.Serialization
Assembly:  System.Xml (in System.Xml.dll)

'Declaration
Public Overridable Function CanDeserialize ( _
	xmlReader As XmlReader _
) As Boolean
'Usage
Dim instance As XmlSerializer 
Dim xmlReader As XmlReader 
Dim returnValue As Boolean 

returnValue = instance.CanDeserialize(xmlReader)

Parameters

xmlReader
Type: System.Xml.XmlReader

An XmlReader that points to the document to deserialize.

Return Value

Type: System.Boolean
true if this XmlSerializer can deserialize the object that the XmlReader points to; otherwise, false.

The following example calls the CanDeserialize method to check whether an XML document can be deserialized.

Private Sub TestDocument _
                (ByVal filename As String, _
                 ByVal objType As Type)
    ' Using a FileStream, create an XmlTextReader. 
    Dim fs As New FileStream(filename, FileMode.Open)
    Dim reader As New XmlTextReader(fs)
    Dim serializer As New XmlSerializer(objType)
    If serializer.CanDeserialize(reader) Then 
        Dim o As Object = serializer.Deserialize(reader)
    End If
    fs.Close()
End Sub
private:
void TestDocument(String* filename, Type* objType)
{
   // Using a FileStream, create an XmlTextReader.
   Stream* fs = new FileStream(filename, FileMode::Open);
   XmlReader* reader = new XmlTextReader(fs);
   XmlSerializer* serializer = new XmlSerializer(objType);
   if(serializer->CanDeserialize(reader))
      {
         Object* o = serializer->Deserialize(reader);
      }
   fs->Close();
}

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC, Xbox 360, Zune

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0, 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 3.5, 2.0

XNA Framework

Supported in: 3.0, 2.0, 1.0

Community Additions

ADD
Show:
© 2014 Microsoft