DBUtility/XmlControl.cs

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using System;
using System.Data;
using System.IO;
using System.Xml;

namespace DBUtility
{
    /// <summary>
    /// 提供对XML文档的操作接口。
    /// </summary>
    public class XmlControl
    {
        private string _strXmlFile;
        private XmlDocument _objXmlDoc = new XmlDocument();

        /// <summary>
        /// TODO: 在这里加入建构函式的程序代码 
        /// </summary>
        /// <param name="XmlFile"></param>
        public XmlControl(string _XmlFile)
        {
            try
            {
                _objXmlDoc.Load(_XmlFile);
            }
            catch (System.Exception ex)
            {
                throw ex;
            }
            _strXmlFile = _XmlFile;
        }
        /// <summary>
        /// 返回一个XmlNodeList
        /// </summary>
        /// <param name="XmlPathNode"></param>
        /// <returns></returns>
        public XmlNodeList GetList(string _XmlPathNode)
        {
            XmlNodeList _NodeList = _objXmlDoc.SelectNodes(_XmlPathNode);
            return _NodeList;
        }
        public bool ExistNode(string _XmlPathNode)
        {
            XmlNode _Node = _objXmlDoc.SelectSingleNode(_XmlPathNode);
            if (_Node == null)
                return false;
            else
                return true;
        }
        /// <summary>
        /// 查找数据。返回一个DataView
        /// </summary>
        /// <param name="XmlPathNode"></param>
        /// <returns></returns>
        public DataView GetData(string _XmlPathNode)
        {
            DataSet _ds = new DataSet();
            StringReader _read = new StringReader(_objXmlDoc.SelectSingleNode(_XmlPathNode).OuterXml);
            _ds.ReadXml(_read);
            return _ds.Tables[0].DefaultView;