我有一个奇怪的问题,很困惑。我想通过电线发送数据集并对其进行序列化。当我反序列化时,我想检索对象和它的属性。但是,当我DESERIALIZE(EDITED)时,它似乎失去了与基类相关的子类。我创建了以下类:反序列化时丢失对象
[Serializable]
public class DataAttributeColumn : DataColumn, ISerializable
{
private string attributeName;
[DataMember(IsRequired = true)]
public string AttributeName
{
get { return attributeName; }
set { attributeName = value; }
}
public void GetObjectData(SerializationInfo info, StreamingContext context)
{
info.AddValue("AttributeName", this.AttributeName);
}
}
而不是使用列名的DataColumn的,我想扩展它的添加属性名称。这一切都工作100%,直到我通过电线发送。
我创建了以下Test类并使用了Binary和DataContract序列化程序。
public class Test
{
DataSet ds = new DataSet();
DataTable dt = new DataTable();
DataAttributeColumn dac = new DataAttributeColumn();
public void CreateData()
{
ds.Tables.Add(dt);
dac.AttributeName = "MyAttribute";
dt.Columns.Add(dac);
}
public void SerializeBinary()
{
DataSet dss = new DataSet();
BinaryFormatter dcs = new BinaryFormatter();
ds.RemotingFormat = SerializationFormat.Xml;
string strTempfilePath = "binary.txt";
FileStream fs;
using (fs = new FileStream(strTempfilePath, FileMode.OpenOrCreate, FileAccess.ReadWrite))
{
dcs.Serialize(fs, ds);
}
fs = new FileStream(strTempfilePath, FileMode.Open);
dss = dcs.Deserialize(fs) as DataSet;
DataAttributeColumn dac2 = null;
dac2 = dss.Tables[0].Columns[0] as DataAttributeColumn;
if (dac2 != null)
{
Console.WriteLine("YOU DID IT!!!!");
}
//Second Serialize
using (fs = new FileStream("binary2.txt", FileMode.OpenOrCreate, FileAccess.ReadWrite))
{
dcs.Serialize(fs, dss);
}
}
public void SerializeDataContract()
{
DataSet dss = new DataSet();
Type[] knowntypes = { typeof(DataAttributeColumn), typeof(DataColumn) };
DataContractSerializer dcs = new DataContractSerializer(typeof(DataSet), knowntypes);
MemoryStream stream = new MemoryStream();
ds.RemotingFormat = SerializationFormat.Xml;
string strTempfilePath = "datacontract.txt";
FileStream fs;
using (fs = new FileStream(strTempfilePath, FileMode.OpenOrCreate, FileAccess.ReadWrite))
{
dcs.WriteObject(fs, ds);
}
fs = new FileStream(strTempfilePath, FileMode.Open);
dss = dcs.ReadObject(fs) as DataSet;
DataAttributeColumn dac2 = null;
dac2 = dss.Tables[0].Columns[0] as DataAttributeColumn;
if (dac2 != null)
{
Console.WriteLine("YOU DID IT!!!!");
}
using (fs = new FileStream("datacontract2.txt", FileMode.OpenOrCreate, FileAccess.ReadWrite))
{
dcs.WriteObject(fs, dss);
}
}
}
我的目标是创建一个属性,当我反序列化,我可以从DataColumn中投的对象放回DataAttributeColumn,以获取“的AttributeName”。
我该怎么做到这一点?
编辑:反序列化后serializatiion
<DataSet><xs:schema id="NewDataSet" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata"><xs:element name="NewDataSet" msdata:IsDataSet="true" msdata:UseCurrentLocale="true"><xs:complexType><xs:choice minOccurs="0" maxOccurs="unbounded"><xs:element name="Table1"><xs:complexType><xs:sequence><xs:element name="Column1" msdata:**AttributeName="MyAttribute"** type="xs:string" minOccurs="0"/></xs:sequence></xs:complexType></xs:element></xs:choice></xs:complexType></xs:element></xs:schema><diffgr:diffgram xmlns:diffgr="urn:schemas-microsoft-com:xml-diffgram-v1" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata"/></DataSet>
和输出后的输出:
<DataSet><xs:schema id="NewDataSet" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata"><xs:element name="NewDataSet" msdata:IsDataSet="true" msdata:UseCurrentLocale="true"><xs:complexType><xs:choice minOccurs="0" maxOccurs="unbounded"><xs:element name="Table1"><xs:complexType><xs:sequence><xs:element name="Column1" type="xs:string" minOccurs="0"/></xs:sequence></xs:complexType></xs:element></xs:choice></xs:complexType></xs:element></xs:schema><diffgr:diffgram xmlns:diffgr="urn:schemas-microsoft-com:xml-diffgram-v1" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata"/></DataSet>
很难使这个问题的意义。属性与类型相关联。你序列化一个对象,而不是一个类型。 –
让我们这样,在序列化后,我怎样才能确保何时我将“dac2 = dss.Tables [0] .Columns [0]”作为DataAttributeColumn;“。我可以在反序列化之后检索“dac2.AttributeName”。 – Mage