Unable to cast object of type 'System.Xml.XmlElement' to type 'System.Xml.XmlCDataSection[Answered] RSS

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  jagadishnpy

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  Unable to cast object of type 'System.Xml.XmlElement' to type 'System.Xml.XmlCDataSection

  Oct 27, 2015 01:51 AM|jagadishnpy|LINK

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  I am trying to deserialize this but whenever CDATA is null then my asmx web service crashes.If the CDATA is not null then i could make it work.

  Please help 

  deserialize NET xml sharepointCSOM

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  Zhi Lv - MSF...

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  Re: Unable to cast object of type 'System.Xml.XmlElement' to type 'System.Xml.XmlCDataSection

  Oct 27, 2015 10:27 PM|Zhi Lv - MSFT|LINK

  Hi jagadishnpy,

  Welcome to asp.net forum.

  As for this issue, I suggest you could check the object class. When you set the property, you need to check whether it is null. You could refer to the following code:

     [XmlRoot("root")]
      public class Sample1Xml
      {
          [XmlElement("node")]
          public NodeType Node { get; set; }
  
          #region Nested type: NodeType
  
          public class NodeType
          {
              [XmlAttribute("attr1")]
              public string Attr1 { get; set; }
  
              [XmlAttribute("attr2")]
              public string Attr2 { get; set; }
  
              [XmlIgnore]
              public string Content { get; set; }
  
              [XmlText]
              public XmlNode[] CDataContent
              {
                  get
                  {
                      var dummy = new XmlDocument();
                      return new XmlNode[] {dummy.CreateCDataSection(Content)};
                  }
                  set
                  {
                      if (value == null)
                      {
                          Content = null;
                          return;
                      }
  
                      if (value.Length != 1)
                      {
                          throw new InvalidOperationException(
                              String.Format(
                                  "Invalid array length {0}", value.Length));
                      }
  
                      var node0 = value[0];
                      var cdata = node0 as XmlCDataSection;
                      if (cdata == null)
                      {
                          throw new InvalidOperationException(
                              String.Format(
                                  "Invalid node type {0}", node0.NodeType));
                      }
  
                      Content = cdata.Data;
                  }
              }
          }
  
          #endregion
      }
  

  For more details, please refer to the following links:

  https://social.msdn.microsoft.com/Forums/en-US/6f59a2c0-2f70-4f19-9210-c675bbdce48d/cdata-serialization-with-xmlserializer?forum=asmxandxml

  http://stackoverflow.com/questions/9673030/deserialize-xml-with-empty-elements

  http://www.codeproject.com/Articles/483055/XML-Serialization-and-Deserialization-Part

  Best regards,
  Dillion

  deserialize NET xml sharepointCSOM

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