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我目前正在修改 ASP.NET (3.5) 应用程序以在 SQLServer SessionState
模式下运行。在现有代码中，我们有一个序列化的数据集，该数据集当前
使用 C# 存储在 Session 中。我有一个属性，用于提取此序列化数据集并将其加载到 XmlDataDocument 中。我的财产是这样的“东西”：

public abstract class TransCommand 
{
 public static XmlDataDocument TransDoc
   {
     get
        {
          XmlDataDocument doc = null;
          if (Session["DataSetStore"] != null)
            {
              DataSet tds3 = new DataSet();
              MemoryStream tms3 = new MemoryStream(HttpContext.Current.Session["DataSetStore"] as byte[]);
              doc = new XmlDataDocument();
              doc.LoadXml(System.Text.Encoding.UTF8.GetString(tms3.ToArray()));
             }
             return doc;
         }
            set
            {
                Session["DataSetStore"] = System.Text.Encoding.UTF8.GetBytes(value.OuterXml);
            }
        }

这很好用，除非我尝试将 XmlNode 附加到从此
TransDoc 方法创建的节点上。

public class AddChildren
  {
    XmlDataDocument doc = TransactionCommand.TransactionDoc;
    doc.DataSet.EnforceConstraints = false;
    XmlNode dataNode = doc.SelectSingleNode("//WebServiceResponse/Data");

    ......

    ArrayList lstNewInfants = new ArrayList();
    1stNewInfants.add(newInfants); //Adding new Infants XmlNodes into an arraylist.

    foreach (XmlNode nodInfant in lstNewInfants)
    {
      dataNode.AppendChild(nodInfant);
    }

doc.DataSet.EnforceConstraints = true;
TransactionCommand.TransactionDoc = doc; //Adds the modified doc back into the session


追加此节点后，我在遇到下一页aspx页面的Databind后收到以下异常：

Error Message:Type 'System.Xml.XmlBoundElement' in Assembly 'System.Data, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' is not marked as serializable.
Stack Trace:   at System.Runtime.Serialization.FormatterServices.InternalGetSerializableMembers(RuntimeType type)
   at System.Runtime.Serialization.FormatterServices.GetSerializableMembers(Type type, StreamingContext context)
   at System.Runtime.Serialization.Formatters.Binary.WriteObjectInfo.InitMemberInfo()
   at System.Runtime.Serialization.Formatters.Binary.WriteObjectInfo.InitSerialize(Object obj, ISurrogateSelector surrogateSelector, StreamingContext context, SerObjectInfoInit serObjectInfoInit, IFormatterConverter converter, ObjectWriter objectWriter)
   at System.Runtime.Serialization.Formatters.Binary.WriteObjectInfo.Serialize(Object obj, ISurrogateSelector surrogateSelector, StreamingContext context, SerObjectInfoInit serObjectInfoInit, IFormatterConverter converter, ObjectWriter objectWriter)
   at System.Runtime.Serialization.Formatters.Binary.ObjectWriter.Serialize(Object graph, Header[] inHeaders, __BinaryWriter serWriter, Boolean fCheck)
   at System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Serialize(Stream serializationStream, Object graph, Header[] headers, Boolean fCheck)
   at System.Web.Util.AltSerialization.WriteValueToStream(Object value, BinaryWriter writer)

有任何想法吗？

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0 回答 0