给xml的一个节点添加属性的问题！

Question

foreach (System.Xml.XmlNode _Node in nodeList)
 {  
      XmlElement Xmlele=(XmlElement) _Node;
      Xmlele.SetAttribute("newDD_ID","TestDD_ID");                 
 } docWrite.Save(sourceFile);

Answer 1

XmlElement xmlele;if(xmlele.HasAttributes)
{
   foreach(XmlAttribute xmlatt in xmlele.Attributes)
   {
       Console.WriteLine(xmlatt.Value);
   }
}

Answer 2

XPathNavigator navItem = iterator.Current.Clone();       //defines another Navigator to search the nodes inside            while (navItem.MoveToNextAttribute())
           {               
            if (navItem.Name=="title")  //scan the property of the caption if the caption exist then  do below
            {
               bool DD_IDExist=false;   //default it doesn't exist
               title=navItem.Value ;    //get teh node 's caption
               XPathNavigator dd_idItem = iterator.Current.Clone();       //defines another Navigator to search the nodes inside
               // TODO: below is not the best sulution,
//               dd_idItem.MoveToFirstAttribute();           
//               while (dd_idItem.MoveToNextAttribute())  
//               {  
//                  if (dd_idItem.Name=="DD-ID")   
//                  {
//                     DD_IDExist=true;
//                     break;
//                  }                           
//               }

Answer 3

xpaht类型没发转换成xmelement类型的，请问应该怎么实现！