XmlSerializer.CanDeserialize(XmlReader) 方法

定義

命名空間:

System.Xml.Serialization

組件:

System.Xml.XmlSerializer.dll

組件:

System.Xml.dll

組件:

netstandard.dll

取得值，指出這個 XmlSerializer 是否可以還原序列化指定的 XML 文件。

public:
 virtual bool CanDeserialize(System::Xml::XmlReader ^ xmlReader);

public virtual bool CanDeserialize (System.Xml.XmlReader xmlReader);

abstract member CanDeserialize : System.Xml.XmlReader -> bool
override this.CanDeserialize : System.Xml.XmlReader -> bool

Public Overridable Function CanDeserialize (xmlReader As XmlReader) As Boolean

參數

xmlReader

XmlReader

XmlReader，指向要還原序列化的文件。

傳回

Boolean

如果這個 XmlSerializer 可以還原序列化 XmlReader 所指向的物件，則為 true，否則為 false。

範例

下列範例會 CanDeserialize 呼叫 方法來檢查 XML 檔是否可以還原序列化。

private:
   void TestDocument( String^ filename, Type^ objType )
   {
      // Using a FileStream, create an XmlTextReader.
      Stream^ fs = gcnew FileStream( filename,FileMode::Open );
      XmlReader^ reader = gcnew XmlTextReader( fs );
      XmlSerializer^ serializer = gcnew XmlSerializer( objType );
      if ( serializer->CanDeserialize( reader ) )
      {
         Object^ o = serializer->Deserialize( reader );
      }
      fs->Close();
   }

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();
}

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

另請參閱

• Deserialize(Stream)