C#通用類實現讀取xml控制Asp.net控制項輸入資訊長度

來源:互聯網
上載者:User

方法體

using System;
using System.Xml;
using System.Configuration;
using System.Web;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;

namespace XMLSize
{
  public struct strRestric
  {
    public string msgPage;
    public string msgPrompt;
    public int size;
  }
  public class XmlRestrict
  {
    public static strRestric res;
    public XmlRestrict()
    {
      res.msgPage="";
      res.msgPrompt="";
      res.size=0;
    }
    public static object Restrict(string xmlPathName,string nodeID,strRestric res)
    {
      int NodeNum=1;
      string path="";
      path =ConfigurationSettings.AppSettings.Get(xmlPathName).ToString();
      path+="Restrict.xml";
      try
      {
        XmlDocument xmlDoc=new XmlDocument();
        xmlDoc.Load(path);
        XmlNodeList nodeList=xmlDoc.SelectSingleNode("Tree").ChildNodes;
        foreach(XmlNode xn in nodeList)
        {
          XmlElement xe=(XmlElement)xn;
          if(xe.Name=="Node")
          {
            XmlNodeList nls=xe.ChildNodes;
            foreach(XmlNode xn1 in nls)
            {
              XmlElement xe2=(XmlElement)xn1;
              if(xe2.Name=="PageId")
              {
                if(xe2.InnerText==nodeID)
                {
                  XmlNode xnChild=(XmlNode)xe2;
                  XmlNode child=xnChild.ParentNode.ChildNodes[NodeNum+1];
                  XmlElement xeChild=(XmlElement)child;
                  string Id=xeChild.GetAttribute("value");
                  int Pid=int.Parse(Id);
                  res.msgPage=child.InnerText.ToString();
                  res.msgPrompt=xnChild.ParentNode.ChildNodes[NodeNum+2].InnerText.ToString();
                  res.size=Pid;
                  return res;
                }
                break;
              }
            }
          }
        }
      }
      catch
      {}
      return null;
    }

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