asp.net c#以文本文件打开并修改web.conif <connectionStrings>

Question

rt  写个类 求教

Answer 1

C# 读写 Web.config 的类

Answer 2

XmlDocument xmldocument=new XmlDocument(); 
xmldocument.Load(fileinfo.FullName); 
    foreach(XmlNode node in xmldocument.SelectSingleNode("appSettings").ChildNodes) 
    {  
    if (node.Name == "add") 
    {  
      if (node.Attributes.GetNamedItem("key").Value == "connString") 
      { 
      node.Attributes.GetNamedItem("value").Value= String.Format("Persist Security Info=False;Data Source={0};Initial Catalog={1};User ID={2};Password={3};Packet Size=4096;Pooling=true;Max Pool Size=100;Min Pool Size=1","","","","'); 
      }  
    }  
    } 
  
http://topic.csdn.net/u/20091027/09/83a368f5-7086-4186-8652-d08ffe46ba29.html