/// <summary>

/// 格式化XML方法

/// </summary>

public class UXMLFormat

{

    public static string FormatXML(string XMLstring)

    {

        //校验是否是XML报文

        if (!XMLstring.Contains("<?xml version")) return XMLstring;

        XmlDocument xmlDocument = GetXmlDocument(XMLstring);

        return ConvertXmlDocumentTostring(xmlDocument);

    }

    public static string ConvertXmlDocumentTostring(XmlDocument xmlDocument)

    {

        MemoryStream memoryStream = new MemoryStream();

        XmlTextWriter writer = new XmlTextWriter(memoryStream, null)

        {

            Formatting = Formatting.Indented//缩进

        };

        xmlDocument.Save(writer);

        StreamReader streamReader = new StreamReader(memoryStream);

        memoryStream.Position = ;

        string xmlString = streamReader.ReadToEnd();

        streamReader.Close();

        memoryStream.Close();

        return xmlString;

    }

        public static XmlDocument GetXmlDocument(string xmlString)

    {

        XmlDocument document = new XmlDocument();

        document.LoadXml(xmlString);

        return document;

    }

}