c# - 反序列化模板之一的内容以检查它是否为有效的 XML 格式

Question

我想反序列化其中一个模板的内容以检查它是否是有效的 XML 格式。谁能给我这个示例代码？

Answer 1

您可以将其用于验证示例：

using System;
using System.Collections;
using System.Data;
using System.IO;
using System.Xml;
using System.Xml.Schema;
using System.Text;

public class XMLValidator
{
    // Validation Error Count
    static int ErrorsCount = 0;

     // Validation Error Message
    static string ErrorMessage = "";

    public static void ValidationHandler(object sender,
                                         ValidationEventArgs args)
    {
        ErrorMessage = ErrorMessage + args.Message + "\r\n";
        ErrorsCount ++;
    }

    public void Validate(string strXMLDoc)
    {
        try
        {
            // Declare local objects
            XmlTextReader         tr   = null;
            XmlSchemaCollection   xsc  = null;
            XmlValidatingReader   vr   = null;

            // Text reader object
            tr  = new XmlTextReader(urlpath);
            xsc = new XmlSchemaCollection();
            xsc.Add(null, tr);

            // XML validator object

            vr = new XmlValidatingReader( strXMLDoc,
                         XmlNodeType.Document, null);

            vr.Schemas.Add(xsc);

            // Add validation event handler

            vr.ValidationType = ValidationType.Schema;
            vr.ValidationEventHandler +=
                     new ValidationEventHandler(ValidationHandler);

            // Validate XML data

            while(vr.Read());

            vr.Close();

            // Raise exception, if XML validation fails
            if (ErrorsCount > 0)
            {
                throw new Exception(ErrorMessage);
            }

            // XML Validation succeeded
            Console.WriteLine("XML validation succeeded.\r\n");
        }
        catch(Exception error)
        {
            // XML Validation failed
            Console.WriteLine("XML validation failed." + "\r\n" +
            "Error Message: " + error.Message);
        }
    }
}

以及反序列化的代码：

var reader = new StringReader(xmlString);
        var serializer = new XmlSerializer(typeof(radio));
        var instance = (radio)serializer.Deserialize(reader);

        return instance;