怎么动态读取，添加xml中存放的产品图片的路径 图片能在后台增删改

Question

我做的是个图片旋转的效果  图片的路径存放到了xml中
<?xml version="1.0" encoding="utf-8"?><center>
<center  ImgName="images/img1.jpg" 
url="http://www.51xuediannao.com/" 
Title="" /> <center  ImgName="images/img2.jpg" 
url="http://www.51xuediannao.com/" 
Title="" />

<center  ImgName="images/img3.jpg" 
url="http://www.51xuediannao.com/" 
Title="" />
<center  ImgName="images/img4.jpg" 
url="http://www.51xuediannao.com/" 
Title="" />

<center  ImgName="images/img5.jpg" 
url="http://www.51xuediannao.com/" 
Title="" /> <center  ImgName="images/img6.jpg" 
url="http://www.51xuediannao.com/" 
Title="" />
</center><option>
<option    
    x_radiusX     =     "230"  
  x_radiusY     =     "70"  
  x_centerX     =     "480"
x_centerY     =     "170"
x_imgX         =     "-300"
x_imgY         =     "-230"
x_imgWidth    =     "610"
x_imgHeight   =     "310"
x_speed        =     "0.18"
x_Rspeed       =     "8000"
x_isPlay         =     "right"
x_filepath        =     ""
/>
</option>
产品的图片能在后台进行增删改 所以xml里就不能写死路径 怎样从数据库里读出来 然后修改里面的路径 

Answer 1

你看一看关于XML数据库增删改的方法，你就会的了

Answer 2

linq to xml static void PrintAllPetNames(XElement doc)
{
var petNames = from pn in doc.Descendants("PetName")
select pn.Value;
foreach (var name in petNames)
Console.WriteLine("Name: {0}", name);
}http://www.cnblogs.com/sunrack/articles/1081714.html

Answer 3

我以前没操作过xml，在哪里看啊

Answer 4

  public static void CreateXmlFile(string fileName,string rootElement)
        {
            if (!File.Exists(fileName))
            {
                //创建Xml文件
                XmlTextWriter writer = new XmlTextWriter(fileName, Encoding.UTF8);
                //设置自动缩进
                writer.Formatting = Formatting.Indented;
                //XML版本声明
                writer.WriteStartDocument();
                //根元素
                writer.WriteStartElement(rootElement);
                //关闭根元素，并书写结束标签
                writer.WriteEndElement();
                //将XML写入文件并且关闭XmlTextWriter实例对象
                writer.Close();
            }
        }        /// <summary>
        /// 添加XML数据
        /// </summary>
        /// <param name="fileName">XML文件路径和文件名</param>
        /// <param name="rootElement">XML文件根元素名称</param>
        /// <param name="itemElement">XML文件二级元素名称</param>
        /// <param name="childElement">XML文件三级元素名称和值</param>
        public static void AppendChildElement(string fileName, string rootElement,string itemElement, Dictionary<string,string> childElement)
        {
            XmlDocument xmlDoc = new XmlDocument();
            xmlDoc.Load(fileName);
            XmlNode root = xmlDoc.SelectSingleNode(rootElement);
            XmlElement el = xmlDoc.CreateElement(itemElement);
            foreach(var item in childElement)
            {
                XmlElement elChild = xmlDoc.CreateElement(item.Key);
                elChild.InnerText = item.Value;
                el.AppendChild(elChild);
            }            root.AppendChild(el);
            xmlDoc.Save(fileName);
        }
        /// <summary>
        /// 删除数据行
        /// </summary>
        /// <param name="fileName">XML文件</param>
        /// <param name="rowNode">顶级节点</param>
        /// <param name="elementID">要查找的三级节点的InnerText，根据此值删除二级节点（一条数据）</param>
        public static void RemoveRecord(string fileName,string rowNode,string elementID)
        {
            XmlDocument xmlDoc = new XmlDocument();
            xmlDoc.Load(fileName);
            XmlNodeList nodeList = xmlDoc.SelectSingleNode(rowNode).ChildNodes;
            foreach (XmlNode node in nodeList)
            {
                XmlElement el = (XmlElement)node;
                XmlNodeList nodeListChild = el.ChildNodes;
                foreach (XmlNode nodeChild in nodeListChild)
                {
                    if (nodeChild.InnerText == elementID)
                    {
                        xmlDoc.SelectSingleNode(rowNode).RemoveChild(node);
                        break;
                    }
                }
            }
            xmlDoc.Save((fileName));
        }

Answer 5

4楼的我用的你那个方法 试了 不行  
我这个xml里有两个二级节点 
<center>
  <center ImgName="images/img1.jpg" url="http://www.51xuediannao.com/" Title="" />
  <center ImgName="images/img2.jpg" url="http://www.51xuediannao.com/" Title="" />
  <center ImgName="images/img3.jpg" url="http://www.51xuediannao.com/" Title="" />
  <center ImgName="images/img4.jpg" url="http://www.51xuediannao.com/" Title="" />
  <center ImgName="images/img5.jpg" url="http://www.51xuediannao.com/" Title="" />
  <center ImgName="images/img6.jpg" url="http://www.51xuediannao.com/" Title="" />
  
</center>
<option>
<option    
    x_radiusX     =     "230"  
  x_radiusY     =     "70"  
  x_centerX     =     "480"
x_centerY     =     "170"
x_imgX         =     "-300"
x_imgY         =     "-230"
x_imgWidth    =     "610"
x_imgHeight   =     "310"
x_speed        =     "0.18"
x_Rspeed       =     "8000"
x_isPlay         =     "right"
x_filepath        =     ""
/>
</option>
怎么生成<center ImgName="images/img6.jpg"url="http://www.51xuediannao.com/"Title="" />这样的节点
而不是 
<center>
    <1>images/1.jpg</1>
    <1>images/2.jpg</1>
    <1>images/3.jpg</1>
    <1>images/4.jpg</1>
  </center>这样的