如何使用通过javascript在客户端创建的元素 [英] How to work with elements which were created in Client side through javascript

问题描述

  function  addRow（id）{
 alert（id）; 
  var  x =  document  .getElementById（   CphrEMS_tblnew）; 
  var  node = x.rows [ 0 ]。cells [ 0 ]。cloneNode（ true ）; 
 node.id =  2 ; 
 x.appendChild（node）;  //  将节点或行添加到表中 
 返回  false ; 
} 

我使用上面的代码在客户端创建元素





如何

在代码背后访问这些新创建的元素？





以及它们在Post Back中消失了

解决方案

在这个场景中我建议你使用Ajax GET / POST进行客户端编程方法，

当你动态生成元素然后给它们一个唯一的id

并且对于数据操作你可以使用ajax方法进行绑定或插入，更新删除而不回发一页

所以你的元素不清楚.. :)



更多信息请参阅我的提示/技巧，

它不是你想要的，但我在gridview中动态生成文本框并使用ajax post方法绑定它们... :)



[ ^ ]



使用AJAX绑定Gridview [ ^ ]

function addRow(id) {
            alert(id);
            var x = document.getElementById("CphrEMS_tblnew");
            var node = x.rows[0].cells[0].cloneNode(true);
            node.id = 2;
            x.appendChild(node);   //add the node or row to the table
            return false;
        }

I'm using the above Code to create elements in Client Side


How to
Access these Newly Created Elements In Code Behind ?


and also they Were Disappearing in Post Back

解决方案

In this scenerio i am suggest you to use client side programming using Ajax GET/POST method,
When you are generate elements dynamically then give them all a unique id
and for data manipulations you can use ajax methods for binding or insert,update delete without postback of a page
so your elements doesnt clear .. :)

for more info see my tip/trick,
it is not exactly whatever you want but i have generate textboxes dynamically in gridview and bind them using ajax post method... :)

Expandable Table like Gridview[^]

Bind Gridview using AJAX [^]

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