.net 操作web.config文件

 1                     XmlDocument doc = new XmlDocument();
 2                     string wc = HttpContext.Request.PhysicalApplicationPath + @"/web.config";
 3 
 4                     //设置修改节点路径                          
 5                     string changeNode = "/configuration/XryangConfig/CachingEnabled";
 6 
 7                     //加载web.config文件  
 8                     doc.Load(wc);
 9 
10 
11                     //找到要修改的节点  
12                     XmlNode node = doc.SelectSingleNode(changeNode);
13 
14                     //设置节点的值  
15                     node.Attributes["Enabled"].InnerText = isOpen.ToString();
16 
17                     //保存设置
18                     doc.Save(wc);
19 
20                     response.StatusCode = 200;