利用js的Node遍历找到repeater的一个字段实例介绍

var checkboxs = document.getElementsByTagName("input"); 
for(var i=0;i<checkboxs.length;i++) 
{ 
if(checkboxs[i].type=="checkbox" && checkboxs[i].checked==true){ 
var trobj=checkboxs[i].parentNode.parentNode; //找到tr节点 
if(trobj.rowIndex > 0){ 
var tdobj=trobj.children; 
var amount = tdobj[3].children.item(0).value; //找到td节点的value 对应第4个td 
alert(amount); 
} 
} 
}

<asp:repeater id="repeater1" runat="server"> 
<ItemTemplate> 
<tr class="TableDetail2"> 
<TD> 
<input type =checkbox name="checkboxs" ID="checkbox" Runat="server" Width="15" value = '<%# Container.DataItem("mocode") %>'/> 
</TD> 
<td class="nowrap"> 
<asp:ImageButton id="btnkxcode" runat="server" Width="15" ImageUrl="../image/search.jpg" CommandName="btnkx" 
Height="15"></asp:ImageButton> 
<asp:TextBox id="ckxcode" runat="server" CssClass="TextBox1" Text='<%# Container.DataItem("itemtype") %>'> 
</asp:TextBox></td> 
<td class="nowrap"> 
<asp:ImageButton id="btnkxname" runat="server" Width="15" ImageUrl="../image/search.jpg" CommandName="btnkxn" 
Height="15"></asp:ImageButton> 
<asp:TextBox id="ckxname" runat="server" CssClass="TextBox1" Text='<%# Container.DataItem("itemname") %>'> 
</asp:TextBox> 
</td> 
<td class="nowrap"> 
<asp:TextBox id="amount" runat="server" CssClass="TextBox1" Text='<%# Container.DataItem("ysamount") %>'> 
</asp:TextBox></td> 
</tr> 
</ItemTemplate> 
</asp:repeater>