从WCF服务返回XML [英] Returning XML From a WCF Service

问题描述

我正在创建WCF Web服务，其中一种方法（在Service中公开）以XML格式返回数据，如下所示：

I am creating a WCF Web Service in which one method (exposed in Service) return data in XML format as given below:

    public string QueryDirectoryEntry()
    {

        XmlDocument doc = new XmlDocument();
        doc.Load(@"c:\" + FILE_NAME);
        return doc.InnerXml;
    }

如果客户端调用此方法，他们的服务将返回XML格式的数据，将该XML绑定到datagridview控件中。

If the client call this method their service return data in XML format , I want to bind this XML in the datagridview control.

XML数据实际上包含 List< MyStruct> 。 / p>

The XML data is actually contains the List<MyStruct>.

class MyStruct
{
  Name..
  ID...
}

XML：

<root>
  <MyStruct>
    <Name>abc</Name>
    <ID>1</ID>
  </MyStruct>
  <MyStruct>
    <Name>abc</Name>
    <ID>2</ID>
  </MyStruct>
</root>

我希望数据应为XML ，以便每个应用程序都可以使用

I want that data should be in XML so that every application can use this data either in C# or Java.

推荐答案

您永远不要将XML作为字符串返回或操作。而是将其返回为XmlElement：

You should never return or manipulate XML as a string. Return it as XmlElement instead:

[ServiceContract]
public interface IReturnRealXml {
    [OperationContract]
    XmlElement QueryDirectoryEntry();
}

public class ReturnRealXmlNotStrings : IReturnRealXml {

    public XmlElement QueryDirectoryEntry()
    {
        XmlDocument doc = new XmlDocument();
        doc.Load(@"c:\" + FILE_NAME);
        return doc.DocumentElement;
    }
}

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