XML操作:1.XML类(http://blog.csdn.net/happy09li/article/details/7460521)

XML绑定TreeView

 private void XmlOperation_Load(object sender, EventArgs e)
        {
            path = AppDomain.CurrentDomain.BaseDirectory + @"NameList.xml";
            xml.Load(path);//加载xml文件
            bindTvXml();
        }


        /// <summary>
        /// 绑定TreeView
        /// </summary>
        private void bindTvXml()
        {
            for (int i = 0; i < xml.DocumentElement.ChildNodes.Count; i++)
            {
                XmlNode Xnode = xml.DocumentElement.ChildNodes[i];
                TreeNode node = new TreeNode();
                node.Text = Xnode.Attributes["name"].Value;
                node.Tag = Xnode;
                bindChildNode(node, Xnode);//绑定子节点
                TvXml.Nodes.Add(node);
                TvXml.HideSelection = false;
            }
        }

        /// <summary>
        /// 递归绑定子节点
        /// </summary>
        /// <param name="node"></param>
        /// <param name="xml"></param>
        private void bindChildNode(TreeNode node, XmlNode xml)
        {
            for (int i = 0; i < xml.ChildNodes.Count; i++)
            {
                TreeNode Childnode = new TreeNode();
                XmlNode ChildXml = xml.ChildNodes[i];
                Childnode.Text = ChildXml.Value;
                Childnode.Name = "1";
                Childnode.Tag = xml.ChildNodes[i];
                if (ChildXml.HasChildNodes)
                {
                    if (ChildXml.ChildNodes[0].NodeType == XmlNodeType.Text)
                        Childnode.Text = ChildXml.ChildNodes[0].InnerText;
                    else
                        bindChildNode(Childnode, ChildXml);
                }
                node.Nodes.Add(Childnode);
            }

        }




public class ManageXML
    {
        /// <summary>
        /// 返回用户操作的SQL语句
        /// </summary>
        /// <param name="sqlNodeName">XML的操作节点</param>
        /// <returns>操作的sql语句</returns>
        public static string GetXMLPath(string strXMlFileName)
        {
            string m_strFullPath = "";
            Assembly Asm = Assembly.GetExecutingAssembly();
            //获取文件的路径
            //m_strFullPath = Asm.Location.Substring(0, (Asm.Location.LastIndexOf("\\") + 1)) + "XMLSql.xml";
            m_strFullPath = AppDomain.CurrentDomain.BaseDirectory + "XMLLibrary\\" + strXMlFileName;
            return m_strFullPath;
        }
        /// <summary>
        /// 获取XML数据库中的数据的方法
        /// </summary>
        /// <param name="strFilePath">传入文件路径</param>
        /// <returns>返回一个数据集</returns>
        public static DataSet GetAllDataFromXML(string strFilePath)
        {
            DataSet ds = new DataSet();
            FileInfo fileInfo = new FileInfo(strFilePath);
            if (fileInfo.Exists)
            {
                try
                {
                    ds.ReadXml(strFilePath);
                }
                catch { }
            }
            else
            {
                ds = null;
            }
            if (ds != null)
            {
                if (ds.Tables[0].Rows.Count < 1)
                    ds = null;
            }
            return ds;
        }


        /// <summary>
        /// 获取指定目录下所有子节点的值
        /// </summary>
        /// <param name="strFileName">文件路径</param>
        /// <param name="nodeDir">节点目录</param>
        /// <returns></returns>
        public static  Hashtable GetNodeList(string strFileName, string nodeDir)
        {
            Hashtable strNodeList = new Hashtable();
            try
            {
                XmlDocument xmlDoc = new XmlDocument();
                xmlDoc.Load(strFileName);


                XmlNodeList nodeList = xmlDoc.SelectSingleNode(nodeDir).ChildNodes;//获取bookstore节点的所有子节点


                foreach (XmlNode xn in nodeList)     //遍历所有子节点
                {
                    XmlElement xe = (XmlElement)xn;  //将子节点类型转换为XmlElement类型
                    strNodeList.Add(xe.GetAttribute("id").ToString(), xe.InnerText.Trim());
                }


            }
            catch (Exception)
            {


                throw;
            }
            return strNodeList;
        }


        /// <summary>
        /// 获取指定节点的值
        /// </summary>
        /// <param name="strFileName">文件路径</param>
        /// <param name="nodeName">节点名称</param>
        /// <param name="value">设置后的值</param>
        /// <param name="nodeDir">指定节点所在的节点目录</param>
        /// <returns></returns>
        public static string GetNodeValue(string strFileName, string nodeName, string nodeDir)
        {
            string value = null;
            try
            {
                XmlDocument xmlDoc = new XmlDocument();
                xmlDoc.Load(strFileName);


                XmlNodeList nodeList = xmlDoc.SelectSingleNode(nodeDir).ChildNodes;//获取bookstore节点的所有子节点


                foreach (XmlNode xn in nodeList)    //遍历所有子节点
                {
                    XmlElement xe = (XmlElement)xn;  //将子节点类型转换为XmlElement类型


                    if (xe.Name == nodeName)
                    {
                        value = xe.InnerText.Trim();


                        break;
                    }
                }
            }
            catch (Exception exp)
            {
                throw exp;
            }


            return value;
        }


        /// <summary>
        /// 获取指定节点下面对应属性的值
        /// </summary>
        /// <param name="strFileName">文件路径</param>
        /// <param name="nodeName">节点名称</param>
        /// <param name="nodeDir">指定节点所在的节点目录</param>
        /// <param name="attribute">节点对应的属性名称</param>
        /// <returns></returns>
        public static string GetNodeValue(string strFileName, string nodeName, string nodeDir, string attribute)
        {
            string value = null;
            try
            {
                XmlDocument xmlDoc = new XmlDocument();
                xmlDoc.Load(strFileName);


                XmlNodeList nodeList = xmlDoc.SelectSingleNode(nodeDir).ChildNodes;//获取bookstore节点的所有子节点


                foreach (XmlNode xn in nodeList)    //遍历所有子节点
                {
                    XmlElement xe = (XmlElement)xn;  //将子节点类型转换为XmlElement类型


                    if (xe.Name == nodeName)
                    {
                        //value = xe.InnerText.Trim();
                        value = (xe).Attributes[attribute].Value;
                        break;
                    }
                }
            }
            catch (Exception exp)
            {
                throw exp;
            }


            return value;
        }


        /// <summary>
        /// 修改指定结点值
        /// </summary>
        /// <param name="strFileName">文件路径</param>
        /// <param name="nodeName">节点名称</param>
        /// <param name="value">设置后的值</param>
        /// <param name="nodeDir">指定节点所在的节点目录</param>
        /// <returns></returns>
        public static bool UpdateNoteValue(string strFileName, string nodeName, string value, string nodeDir)
        {
            bool isSucceed = false;
            try
            {
                XmlDocument xmlDoc = new XmlDocument();
                xmlDoc.Load(strFileName);


                XmlNodeList nodeList = xmlDoc.SelectSingleNode(nodeDir).ChildNodes;//获取bookstore节点的所有子节点


                foreach (XmlNode xn in nodeList)    //遍历所有子节点
                {
                    XmlElement xe = (XmlElement)xn;  //将子节点类型转换为XmlElement类型


                    if (xe.Name == nodeName)
                    {
                        xe.InnerText = value;


                        isSucceed = true;
                        break;
                    }
                }


                xmlDoc.Save(strFileName);
            }
            catch (Exception exp)
            {
                throw exp;
            }


            return isSucceed;
        }


        /// <summary>
        /// 修改指定结点值
        /// </summary>
        /// <param name="strFileName">文件路径</param>
        /// <param name="nodeName">节点名称</param>
        /// <param name="value">设置后的值</param>
        /// <param name="nodeDir">指定节点所在的节点目录</param>
        /// <returns></returns>
        public static bool UpdateNoteValue(string strFileName, string nodeName, string value, string nodeDir, string attribute, string attributeValue)
        {
            bool isSucceed = false;
            try
            {
                XmlDocument xmlDoc = new XmlDocument();
                xmlDoc.Load(strFileName);


                XmlNodeList nodeList = xmlDoc.SelectSingleNode(nodeDir).ChildNodes;//获取bookstore节点的所有子节点


                foreach (XmlNode xn in nodeList)    //遍历所有子节点
                {
                    XmlElement xe = (XmlElement)xn;  //将子节点类型转换为XmlElement类型


                    if (xe.Name == nodeName)
                    {
                        xe.InnerText = value;
                        (xe).Attributes[attribute].Value = attributeValue;
                        isSucceed = true;
                        break;
                    }
                }


                xmlDoc.Save(strFileName);
            }
            catch (Exception exp)
            {
                throw exp;
            }


            return isSucceed;
        }




        /// <summary>
        /// 修改指定结点值
        /// </summary>
        /// <param name="strFileName">文件路径</param>
        /// <param name="nodeName">节点名称</param>
        /// <param name="value">设置后的值</param>
        /// <param name="nodeDir">指定节点所在的节点目录</param>
        /// <returns></returns>
        public static bool UpdateNoteValue(string strFileName, Hashtable hstable, string nodeDir)
        {
            bool isSucceed = false;
            try
            {
                XmlDocument xmlDoc = new XmlDocument();
                xmlDoc.Load(strFileName);


                XmlNodeList nodeList = xmlDoc.SelectSingleNode(nodeDir).ChildNodes;//获取bookstore节点的所有子节点
                foreach (DictionaryEntry item in hstable)
                {
                    foreach (XmlNode xn in nodeList)    //遍历所有子节点
                    {
                        XmlElement xe = (XmlElement)xn;  //将子节点类型转换为XmlElement类型


                        if (xe.Name == item.Key.ToString())
                        {
                            xe.InnerText = item.Value.ToString();


                            isSucceed = true;
                            break;
                        }
                    }
                }


                xmlDoc.Save(strFileName);
            }
            catch (Exception exp)
            {
                throw exp;
            }


            return isSucceed;
        }

}

   /// <summary>
        /// 移除选定节点集的所有属性
        /// </summary>
        /// <param name="xmlPathNode"></param>
        public void RemoveAllAttribute(string xmlPathNode)
        {
            XmlNodeList xnl = objXmlDoc.SelectNodes(xmlPathNode);
            foreach (XmlNode xn in xnl)
            {
                xn.Attributes.RemoveAll();
            }
        }
        public void DeleteNode(string Node)
        {
            //刪除一个节点。
            try
            {
                string mainNode = Node.Substring(0, Node.LastIndexOf("/"));
                objXmlDoc.SelectSingleNode(mainNode).RemoveChild(objXmlDoc.SelectSingleNode(Node));
            }
            catch
            {
                //throw;
                return;
            }
        }
        public void InsertNodeWithChild(string mainNode, string ChildNode, string Element, string Content)
        {
            //插入一节点和此节点的一子节点。
            XmlNode objRootNode = objXmlDoc.SelectSingleNode(mainNode);
            XmlElement objChildNode = objXmlDoc.CreateElement(ChildNode);
            objRootNode.AppendChild(objChildNode);//插入节点
            XmlElement objElement = objXmlDoc.CreateElement(Element);
            objElement.InnerText = Content;
            objChildNode.AppendChild(objElement);//插入子节点
        }
        /// <summary>
        /// 插入一个节点，带一个Attribute和innerText
        /// </summary>
        /// <param name="mainNode"></param>
        /// <param name="Element">节点名称</param>
        /// <param name="Attrib">Attribute名称</param>
        /// <param name="AttribContent">Attribute值</param>
        /// <param name="Content">innerText值</param>
        public void InsertNode(string mainNode, string Element, string Attrib, string AttribContent, string Content)
        {
            XmlNode objNode = objXmlDoc.SelectSingleNode(mainNode);
            XmlElement objElement = objXmlDoc.CreateElement(Element);
            objElement.SetAttribute(Attrib, AttribContent);
            objElement.InnerText = Content;
            objNode.AppendChild(objElement);
        }
        /// <summary>
        /// 插入一个节点，带一个Attribute
        /// </summary>
        /// <param name="mainNode"></param>
        /// <param name="Element">节点名称</param>
        /// <param name="Attrib">Attribute名称</param>
        /// <param name="AttribContent">Attribute值</param>
        public void InsertNode(string mainNode, string Element, string Attrib, string AttribContent)
        {
            XmlNode objNode = objXmlDoc.SelectSingleNode(mainNode);
            XmlElement objElement = objXmlDoc.CreateElement(Element);
            objElement.SetAttribute(Attrib, AttribContent);
            objNode.AppendChild(objElement);
        }
        /// <summary>
        /// 插入一个节点
        /// </summary>
        /// <param name="mainNode"></param>
        /// <param name="Element">节点名称</param>
        public void InsertNode(string mainNode, string Element)
        {
            XmlNode objNode = objXmlDoc.SelectSingleNode(mainNode);
            XmlElement objElement = objXmlDoc.CreateElement(Element);
            objNode.AppendChild(objElement);
        }
        //<summary>
        //插入一个节点，带多个属性和一个inner text
        //</summary>
        public void InsertNode(string mainNode, string elementName, string[] arrAttributeName, string[] arrAttributeContent, string elementContent)
        {
            try
            {
                XmlNode objNode = objXmlDoc.SelectSingleNode(mainNode);
                XmlElement objElement = objXmlDoc.CreateElement(elementName);
                for (int i = 0; i <= arrAttributeName.GetUpperBound(0); i++)
                {
                    objElement.SetAttribute(arrAttributeName[i], arrAttributeContent[i]);
                }
                objElement.InnerText = elementContent;
                objNode.AppendChild(objElement);
            }
            catch
            {
                throw;
                //string t = mainNode;
            }
        }
        ///<summary>
        ///插入一个节点，带多个属性
        ///</summary>
        public void InsertNode(string mainNode, string elementName, string[] arrAttributeName, string[] arrAttributeContent)
        {
            try
            {
                XmlNode objNode = objXmlDoc.SelectSingleNode(mainNode);
                XmlElement objElement = objXmlDoc.CreateElement(elementName);
                for (int i = 0; i <= arrAttributeName.GetUpperBound(0); i++)
                {
                    objElement.SetAttribute(arrAttributeName[i], arrAttributeContent[i]);
                }
                //objElement.InnerText = elementContent;
                objNode.AppendChild(objElement);
            }
            catch
            {
                throw;
                //string t = mainNode;
            }
        }
        /// <summary>
        /// 插入子节点(带多个属性)
        /// </summary>
        /// <param name="parentNode">要插入的父节点</param>
        /// <param name="elementName">插入的节点名称</param>
        /// <param name="arrAttributeName">属性名称[数组]</param>
        /// <param name="arrAttributeContent">属性内容[数组]</param>
        /// <param name="elementContent">节点内容</param>
        public void AddChildNode(string parentNodePath, string elementName, string[] arrAttributeName, string[] arrAttributeContent, string elementContent)
        {
            try
            {
                XmlNode parentNode = objXmlDoc.SelectSingleNode(parentNodePath);
                XmlElement objChildElement = objXmlDoc.CreateElement(elementName);
                for (int i = 0; i <= arrAttributeName.GetUpperBound(0); i++)
                {
                    objChildElement.SetAttribute(arrAttributeName[i], arrAttributeContent[i]);
                }
                objChildElement.InnerText = elementContent;
                parentNode.AppendChild(objChildElement);
            }
            catch
            {
                return;
            }
        }
        /// <summary>
        /// 插入子节点(将内容以CData形式写入)
        /// </summary>
        /// <param name="parentNode">要插入的父节点</param>
        /// <param name="elementName">插入的节点名称</param>
        /// <param name="elementContent">节点内容</param>
        public void AddChildNodeCData(string parentNodePath, string elementName, string elementContent)
        {
            try
            {
                XmlNode parentNode = objXmlDoc.SelectSingleNode(parentNodePath);
                XmlElement objChildElement = objXmlDoc.CreateElement(elementName);
                //写入cData数据
                XmlCDataSection xcds = objXmlDoc.CreateCDataSection(elementContent);
                objChildElement.AppendChild(xcds);
                parentNode.AppendChild(objChildElement);
            }
            catch
            {
                return;
            }
        }


        /// <summary>
        /// 插入子节点(仅内容，不带属性)
        /// </summary>
        /// <param name="parentNode">要插入的父节点</param>
        /// <param name="elementName">插入的节点名称</param>
        /// <param name="elementContent">节点内容</param>
        public void AddChildNode(string parentNodePath, string elementName, string elementContent)
        {
            try
            {
                XmlNode parentNode = objXmlDoc.SelectSingleNode(parentNodePath);
                XmlElement objChildElement = objXmlDoc.CreateElement(elementName);
                objChildElement.InnerText = elementContent;
                parentNode.AppendChild(objChildElement);
            }
            catch
            {
                return;
            }
        }
        /// <summary>
        /// 根据xpath值查找节点
        /// </summary>
        /// <param name="NodePath">要查找节点的xpath值</param>
        /// <returns>找到返回true,否则返回true</returns>
        public bool FindNode(string NodePath)
        {
            try
            {
                if (objXmlDoc.SelectSingleNode(NodePath) != null)
                {
                    return true;
                }
                else
                {
                    return false;
                }
            }
            catch
            {
                return false;
            }
        }