XmlTextReader例子

 

using  System;
using  System.Data;
using  System.Configuration;
using  System.Collections;
using  System.Web;
using  System.Web.Security;
using  System.Web.UI;
using  System.Web.UI.WebControls;
using  System.Web.UI.WebControls.WebParts;
using  System.Web.UI.HtmlControls;
using  System.Xml;
using  System.Xml.Schema;

public   partial   class  selector : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {

    } 
    ValidationEvtCallBack#region ValidationEvtCallBack
    public void ValidationEvtCallBack(object sender, ValidationEventArgs args)
    {
        if (args.Severity == XmlSeverityType.Warning)
        {
            areaResut.InnerText += "Warning:" + args.Message + Environment.NewLine;
        }
        else
        {
            areaResut.InnerText += "ValidateError:" + args.Message + Environment.NewLine;
        }
    }
    #endregion

    protected void btnAnalyze_ServerClick(object sender, EventArgs e)
    {
        declare variables#region declare variables
        XmlTextReader XmlReader = null;
        XmlValidatingReader xmlDoc = null; 

        int nElements = 0;//元素个数
        int nAttributes = 0;//树形个数
        int nComponets = 0;
        int nPls = 0;
        int nCDATA=0;

        string strWorkingText="";
        areaResut.InnerText="";
        #endregion

        
        try#region  try
        try
        {
            instance XmlTextReader#region instance XmlTextReader
            //xmlDoc = new XmlTextReader(fileSelector.PostedFile.InputStream);
            XmlReader = new XmlTextReader(Server.MapPath("XMLFile.xml"));
            XmlReader.WhitespaceHandling = WhitespaceHandling.None;
            //instance XmlValidatingReader;
            xmlDoc = new XmlValidatingReader(XmlReader);
            xmlDoc.XmlResolver = new XmlUrlResolver();
            //Set ValidationType;
            xmlDoc.ValidationType = ValidationType.Auto;
            //Set Delegate for ValidationEvent
            xmlDoc.ValidationEventHandler += new ValidationEventHandler(ValidationEvtCallBack);

            #endregion
            loop xml#region loop xml

            while (xmlDoc.Read())
            {
                switch (xmlDoc.NodeType)
                {
                    case XmlNodeType.Element:
                        nElements++;
                        areaResut.InnerText += "Element:" + xmlDoc.Name + " has " + xmlDoc.AttributeCount + " attributes " + Environment.NewLine;
                        nAttributes += xmlDoc.AttributeCount;
                        while (xmlDoc.MoveToNextAttribute())
                        {
                            areaResut.InnerText += "\t" + xmlDoc.Name + "-" + xmlDoc.Value + Environment.NewLine;
                        }
                        break;
                    case XmlNodeType.Text:
                        strWorkingText += "|----------------Text:" + xmlDoc.Value + Environment.NewLine;
                        areaResut.InnerText += strWorkingText;
                        break;
                    case XmlNodeType.DocumentType:
                        areaResut.InnerText += "Document has a DocType " + Environment.NewLine;
                        break;
                    case XmlNodeType.Comment:
                        nComponets++;
                        areaResut.InnerText += "Comment:" + xmlDoc.Value + Environment.NewLine;
                        break;
                    case XmlNodeType.ProcessingInstruction:
                        nPls++;
                        break;
                    case XmlNodeType.CDATA:
                        nCDATA++;
                        break;
                }
            }
            #endregion

        }
        catch (XmlException ex)
        {
            this.Label1.Text = ex.Message;
            return;
        }
        finally
        {
            if (xmlDoc != null)
            {
                xmlDoc.Close();
            }
        }
        #endregion

 

    }

    
}