对象数组的 XMLSerializer

Question

我有以下 XML：

<SQLToData>
  <PreProcessors>
    <PreProcessor>
      <Name>Input1</Name>
      <Expression>1 == a</Expression>
    </PreProcessor>
  </PreProcessors>
  <DataSource>
    <Type>SQLServer</Type>
    <ConnectionString>Data Source=****</ConnectionString>
  </DataSource>
  <SQL>
    SELECT * FROM TABLE
  </SQL>
  <ReturnType>DataTable</ReturnType>
</SQLToData>

还有以下 C# 类：

public class SQLToData
{
    public SQLToDataDataSource DataSource { get; set; }
    [XmlArray("PreProcessors")]
    public SQLToDataPreProcessor[] PreProcessors { get; set; }
    public string SQL { get; set; }
    public string ReturnType { get; set; }
}

[XmlRoot("DataSource")]
public class SQLToDataDataSource
{
    public string Type { get; set; }
    public string ConnectionString { get; set; }
}

[XmlRoot("PreProcessor")]
public class SQLToDataPreProcessor
{
    public string Name { get; set; }
    public string Expression { get; set; }
}

我这样调用序列化器：

XDocument xml = XDocument.Load(xmlPath);

XmlSerializer inputSerializer = new XmlSerializer(typeof(SQLToData));
XElement xmlElement = xml.XPathSelectElement("/SQLToData");

SQLToData config;
using (TextReader reader = new StringReader(xmlElement.ToString()))
{
    config = (SQLToData)inputSerializer.Deserialize(reader);
}

但是，我没有在数组中获取PreProcessors 的数据。

我的配置有什么问题？

Answer 1

发现问题。我错过了XmlArrayItem 标签。

public class SQLToData
{
    public SQLToDataDataSource DataSource { get; set; }
    [XmlArray("PreProcessors")]
    [XmlArrayItem("PreProcessor")]
    public SQLToDataPreProcessor[] PreProcessors { get; set; }
    public string SQL { get; set; }
    public string ReturnType { get; set; }
}