移动XPathNodeIterator和Child XPathNodeIterator的同步问题

Question

我在代码中创建了两个 XPathNodeIterator it 和 childIt 代码

片段如下，

string selectSfStr = "Equipment/Main/Sub";
            it = nav.Select(selectSfStr);

            while (it.MoveNext())
            {                
                ; // do something here

                if (it.Current.HasChildren)
                {


                    XPathNodeIterator childIt;
                    string selectChildSfStr = "//item";
                    childIt = nav.Select(selectChildSfStr);

                    while (childIt.MoveNext())
                    {
                           ; // do something here, but I found bug. The childIt can't move sychronized with the parent `it`.
                           ;// How can I synchronize `childIt` here when I moved to next `it`.
                    }
                 }
         }

我的 xml 文件嵌套有 Equipment/Main/Sub/item 的序列> 并且每个sub节点有多个sub节点和多个item

Answer 1

最终，我修复了这个错误，如下所示：

while (it.MoveNext())
            {                
                // do something here


                if (it.Current.HasChildren)
                {


                    XPathNodeIterator childIt;
                    childIt = null;                    
                    childIt = it.Current.SelectChildren("item", ""); 

                    while (childIt.MoveNext())
                    {
                       // do something here

                       childIt.Current.MoveToParent();
                    }
                }
          }