js调用后台代码 带参 传值问题

Question

function GetValue()
{
    var arr = "";
    var dobj = document.all("chkAll");
    for(var i = 0;i < dobj.length - 1;i++)
    {
        if(dobj[i].checked)
        {
            arr += dobj[i].value + "C";
        }
    }
    if (arr.length > 0)
    {
        var res = '<%=lbtnDelete("'+arr+'") %>';
        alert(res);
    }
}arr的值传过去  在后台获得的是   +arr+什么问题......
.....急  ...   小弟在线等

Answer 1

  var res = ' <%=lbtnDelete(&quot;'+arr+'&quot;) %>';

Answer 2

var res = "<%=lbtnDelete('"+arr+"') %>";

Answer 3

"<%=lbtnDelete(\""+arr+"\") %>"; 这样呢?

Answer 4

var res = ' <%=lbtnDelete("'+arr+'") %>';这个，<% %>里面是服务器端代码，怎么能直接用客户端js的变量值作为参数去运行一个服务器端的函数，要能这样还得了?

Answer 5

<%@ Page Language="C#" MasterPageFile="~/MasterPage/MasterPageUser.master" AutoEventWireup="true" CodeFile="messagecenter.aspx.cs" Inherits="msg_messagecenter" %><asp:Content ID="Content2" ContentPlaceHolderID="head1" Runat="Server"><script language="javascript" type="text/javascript">
function SelDeptQ(m,d)
{
    var fobj = document.getElementById(d);
    var dobj = document.all(m);
    
    for(var i = 0;i < dobj.length - 1;i++)
    {
        dobj[i].checked = fobj.checked?true:false;
    }
}  
function GetValue()
{
    var arr = "";
    var dobj = document.all("chkAll");
    for(var i = 0;i < dobj.length - 1;i++)
    {
        if(dobj[i].checked)
        {
            arr += dobj[i].value + "C";
        }
    }
    if (arr.length > 0)
    {
        var res = ' <%=lbtnDelete("'+arr+'") %>'; 
    }
}
</script></asp:Content><asp:Content ID="Content1" ContentPlaceHolderID="ContentPlaceHolder2" Runat="Server">    
    <div class="page_right">
   <div class="tab_top">信息中心</div>
       <div class="tab_cot">
        <a href="#">短消息</a> |
            <a href="#" >系统消息</a> |
            <a href="#" >历史信息</a> |
            <a href="#" class="aul">发送短消息</a>         <asp:DataList ID="dlMessage" runat="server" CssClass="dl" DataKeyField="id">
            <ItemStyle ForeColor="#CCCCCC" />
            <ItemTemplate>
                    <table width="100%">   
                        <tr class="tb_list_3">
                            <td colspan="3" align="left">
                                <div style="width:100%">
                                    <div class="fl" style="width:55%"><a href="#"><%# Conver_user(Eval("reguserid").ToString())%></a></div>
                                    <div class="fl" style="width:30%">
                                        <%# Eval("regdate")%>
                                    </div>
                                    <div class="fl"><input type="checkbox" value='<%# Eval("id") %>' name="chkAll">删除</div><br>
                                    <div class="fl">
                                        <%# Eval("messageTitle")%>
                                    </div>
                                </div>
                            </td>
                        </tr>
                    </table>
            </ItemTemplate>
            <AlternatingItemStyle BackColor="#EFEFEF" />
            <AlternatingItemTemplate>
                <table width="100%">   
                        <tr>
                            <td colspan="3" align="left">
                                <div style="width:100%">
                                    <div class="fl" style="width:55%"><a href="#"><%# Conver_user(Eval("reguserid").ToString())%></a></div>
                                    <div class="fl" style="width:30%">
                                        <%# Eval("regdate")%>
                                    </div>
                                    <div class="fl"><input type="checkbox" value='<%# Eval("id") %>' name="chkAll">删除</div><br>
                                    <div class="fl">
                                        <%# Eval("messageTitle")%>
                                    </div>
                                </div>
                            </td>
                        </tr>
                    </table>
            </AlternatingItemTemplate>
            <FooterTemplate>
                <div style=" float:left">
                    <input type="checkbox" value="V1" id="chkAllQuan" name="chkAll" onclick="SelDeptQ('chkAll','chkAllQuan')"/>
                </div>
                <div style=" float:left; padding-left:5px">全选</div>
                <div style="float:left; padding-left:5px">  
                    <label id="del" onclick="GetValue()" style="cursor:pointer" >删除</label>
                </div>
                <div style=" float:left; padding-left:5px">移到历史信息</div>
            </FooterTemplate>
            </asp:DataList>
    </div>
    </div>
<div class="divMargin"></div>
</asp:Content>
这是 html全部代码

Answer 6

    //删除
    public string lbtnDelete(string arr)
    {
        //删除定值
        
        //string id = "0";
        //message.Delete(Convert.ToInt32(id));
        //MessageBind();
        return "";
    }
后台代码 

Answer 7

把arr转成json串,作为参数发送http请求到后台页面，后台根据get/post过来的串运行函数，返回结果给客户端 。
可以考虑ajax.