我正在重构我的 XML 序列化,并想尝试一下 DataContractSerializer。
using System;
using System.Runtime.Serialization;
namespace VDB_Sync.Model
{
[DataContract(Name="Konstant")]
public class Konstant : DataFelt
{
[DataMember]
private MySqlDbType mydataType;
[DataMember]
private object value;
public Konstant(string navn, MySqlDbType dataType, object value)
: base(navn, dataType, "*Konstant", false, false)
{
//this.navn = navn;
this.mydataType = dataType;
this.value = value;
if (navn.Contains("*Løbenummer"))
{
navn = "*Konstant: " + Convert.ToString(value);
}
}
public object Value
{
get
{
return value;
}
}
}
}
它给了我这个:
Type ‘VDB_Sync.Model.Konstant’ with data contract name ‘Konstant:http://schemas.datacontract.org/2004/07/VDB_Sync.Model’ is not expected. Consider using a DataContractResolver or add any types not known statically to the list of known types - for example, by using the KnownTypeAttribute attribute or by adding them to the list of known types passed to DataContractSerializer.
*到目前为止我找到的帮助指向集合和类型。
作为参考,这就是我序列化它的方式,VDB_SessionController 是根:*
public void GemKonfig(VDB_SessionController session)
{
var settings = new XmlWriterSettings()
{
Indent = true,
IndentChars = "\t"
};
var writer = XmlWriter.Create(defaultFile, settings);
DataContractSerializer ser =
new DataContractSerializer(typeof(VDB_SessionController));
ser.WriteObject(writer, session);
writer.Close();
}
答案
报告的异常是针对 VDB_Sync.Model.Konstant 的。
问题是,根据 Konstant 在此类中的嵌入方式(例如,如果它位于集合或通用列表中),DataContractSerializer 可能无法在反序列化期间准备好其出现。
要解决此问题,您需要将known-type 属性应用于包含 Konstant 的类。VDB_SessionController
。
因此,尝试使用 KnownType 属性来修饰此类:
[KnownType(typeof(VDB_Sync.Model.Konstant)]
public class VDB_SessionController