1/*
  2 * Created by SharpDevelop.
  3 * User: XiaoCai
  4 * Date: 2006-9-25
  5 * Time: 10:05
  6 * 
  7 * If you have anything,Please contact us;
  8 */
  9 
 10using System;
 11using System.Xml;
 12
 13namespace BH.XmlClass
 14{
 15    基本的XML数据对象类
 87    
 88    ///    <summary>
 89    /// 数据操作类，只能对简单的xml数据表结构操作
 90    /// XML文件原型：1、只有一个根结点。2、根结点可以带属性。
 91    ///     3、子结点标识必须相同。4、子结点和孙结点都不带属性
 92    /// </summary>
 93    public class XmlOprator
 94    {
 95        /// <summary>
 96        /// 添加一个新的XML结点
 97        /// </summary>
 98        /// <param name="vXmlItem">结点信息对象</param>
 99        public void AddXml(XmlItem vXmlItem)
100        {
101            XmlDocument XmlDoc = new XmlDocument();
102            XmlDoc.Load(vXmlItem.XmlPath);
103            //
104            //TODO:查找根结点
105            //
106            XmlNode root = XmlDoc.SelectSingleNode(vXmlItem.RootNode);
107            if(vXmlItem.IsRootAttribute){
108                //添加根结点属性
109                XmlElement xe = (XmlElement)root;
110                for(int i=0;i < vXmlItem.RootAttribute.Length;i++){
111                    xe.SetAttribute(vXmlItem.RootAttribute[i], vXmlItem.RootAttributeValue[i]);
112                }
113                //xe.SetAttribute("Date",vXmlItem.Date);
114                //xe.SetAttribute("Author",vXmlItem.Author);
115                //xe.SetAttribute("Description",vXmlItem.Description);
116            }
117            else
118            {
119                //添加根结点的子结点
120                XmlElement xe = XmlDoc.CreateElement(vXmlItem.ChildNode);
121                
122                for(int i=0;i < vXmlItem.GrandsonNode.Length;i++){
123                    XmlElement xeSub1 = XmlDoc.CreateElement(vXmlItem.GrandsonNode[i]);
124                    xeSub1.InnerText = vXmlItem.GrandsonNodeValue[i];
125                    xe.AppendChild(xeSub1);
126                }
127                
128                /*//xe的第一个子结点
129                XmlElement xeSub1 = XmlDoc.CreateElement("Name");
130                xeSub1.InnerText = vXmlItem.Name;
131                xe.AppendChild(xeSub1);
132                //xe的第二个子结点
133                XmlElement xeSub2 = XmlDoc.CreateElement("Url");
134                xeSub2.InnerText = vXmlItem.Url;
135                xe.AppendChild(xeSub2);
136                //xe的第三个子结点
137                XmlElement xeSub3 = XmlDoc.CreateElement("Img");
138                xeSub3.InnerText = vXmlItem.Img;
139                xe.AppendChild(xeSub3);
140                //xe的第四个子结点
141                XmlElement xeSub4 = XmlDoc.CreateElement("Address");
142                xeSub4.InnerText = vXmlItem.Address;
143                xe.AppendChild(xeSub4);*/
144                    
145                root.AppendChild(xe);
146                XmlDoc.Save(vXmlItem.XmlPath);
147            }
148        }
149        
150        /// <summary>
151        /// 编辑结点信息
152        /// </summary>
153        /// <param name="vXmlItem">要修改的结点信息对象</param>
154        /// <param name="Index">孙结点的索引</param>
155        /// <param name="WhereStr">和索引对应的条件</param>
156        public void EditXml(XmlItem vXmlItem,int Index,string WhereStr)
157        {
158            XmlDocument XmlDoc = new XmlDocument();
159            XmlDoc.Load(vXmlItem.XmlPath);
160            
161            XmlNodeList xnl = XmlDoc.SelectSingleNode(vXmlItem.RootNode).ChildNodes;
162            foreach(XmlNode xn in xnl){
163                XmlElement xe = (XmlElement)xn;
164                if(xe.ChildNodes[Index].InnerText==WhereStr){
165                    for(int i=0;i < vXmlItem.GrandsonNode.Length;i++){
166                        xe.ChildNodes[i].InnerText = vXmlItem.GrandsonNodeValue[i];
167                    }
168                    /*xe.ChildNodes[0].InnerText = vXmlItem.Name;
169                    xe.ChildNodes[1].InnerText = vXmlItem.Url;
170                    xe.ChildNodes[2].InnerText = vXmlItem.Img;
171                    xe.ChildNodes[3].InnerText = vXmlItem.Address;*/
172                }
173            }
174            XmlDoc.Save(vXmlItem.XmlPath);
175        }
176        
177        /// <summary>
178        /// 删除XML指定结点,孙结点的索引作为条件
179        /// </summary>
180        /// <param name="vXmlItem">结点信息对象</param>
181        /// <param name="Index">孙结点的索引</param>
182        /// <param name="WhereStr">和索引对应的条件</param>
183        public void DeleteXml(XmlItem vXmlItem,int Index,string WhereStr)
184        {
185            XmlDocument XmlDoc = new XmlDocument();
186            XmlDoc.Load(vXmlItem.XmlPath);
187            
188            XmlNodeList xnl = XmlDoc.SelectSingleNode(vXmlItem.RootNode).ChildNodes;
189            //按照孙结点的索引循环查找指定结点删除
190            foreach(XmlNode xn in xnl){
191                XmlElement xe = (XmlElement)xn;
192                if(xe.ChildNodes[Index].InnerText==WhereStr){
193                    XmlDoc.SelectSingleNode(vXmlItem.RootNode).RemoveChild(xe);
194                }
195            }
196            XmlDoc.Save(vXmlItem.XmlPath);
197        }
198        
199        public void DeleteXml(XmlItem vXI,string vGrandsonNode,string WhereStr){
200            XmlDocument XmlDoc = new XmlDocument();
201            XmlDoc.Load(vXI.XmlPath);
202            
203            XmlNodeList xnl = XmlDoc.SelectSingleNode(vXI.RootNode).ChildNodes;
204            //按照孙结点的名称循环查找指定结点删除
205            foreach(XmlNode xn in xnl){
206                XmlElement xe = (XmlElement)xn;
207                if(xe.GetElementsByTagName(vGrandsonNode)[0].InnerText==WhereStr){
208                    XmlDoc.SelectSingleNode(vXI.RootNode).RemoveChild(xe);
209                }
210            }
211            XmlDoc.Save(vXI.XmlPath);
212        }
213    }
214}
215