我实现了全选，可实现不了删除，请帮下！谢谢！（急！）

我是新手，实现了全选，就是删除不了！
<script type="text/javascript">
    //根据传入的checkbox的选中状态设置所有checkbox的选中状态
    function selectAll(obj)
    {
        var allInput = document.getElementsByTagName("input");
        //alert(allInput.length);
        var loopTime = allInput.length;
        for(i = 0;i < loopTime;i++)
        {
            //alert(allInput[i].type);
            if(allInput[i].type == "checkbox")
            {
                allInput[i].checked = obj.checked;
            }
        }
    }
</script></head>
<body>
    <form id="form1" runat="server">
    <div>
        <table style="width: 497px; height: 363px">
            <tr>
                <td rowspan="3" style="width: 100px">
                    <uc1:carte ID="Carte1" runat="server" />
                </td>
                <td colspan="2" rowspan="3">
                    <asp:GridView ID="GridView1" runat="server" AllowPaging="True" AutoGenerateColumns="False"
                        DataKeyNames="ProductId" DataSourceID="SqlDataSource1">
                        <Columns>
                            <asp:TemplateField> 
                                    <ItemTemplate> 
                                        <asp:CheckBox ID="chk_Del" runat="server" /> 
                                    </ItemTemplate> 
                                </asp:TemplateField> 
                            <asp:BoundField DataField="ProductId" HeaderText="编号" InsertVisible="False"
                                ReadOnly="True" SortExpression="ProductId" />
                            <asp:BoundField DataField="Client" HeaderText="客户" SortExpression="Client" />
                            <asp:BoundField DataField="Item" HeaderText="项目" SortExpression="Item" />
                            <asp:BoundField DataField="Addmine" HeaderText="时间" SortExpression="Addmine" />
                            <asp:CommandField HeaderText="操作"  ShowDeleteButton="True" />
                            <asp:TemplateField HeaderText="操作">
                            <ItemTemplate>
                            <a href='P_app.aspx?Id=<%# Eval("ProductId") %>' 0>编辑</a>
                            </ItemTemplate>
                            </asp:TemplateField>
                        </Columns>
                    </asp:GridView>
                    <asp:CheckBox ID="chk_JS" runat="server" Text="全选" onclick="selectAll(this)"/>
                    <asp:Button ID="btn_DeleteRecords" runat="server" OnClientClick="return judgeSelect();" Text="删除" OnClick="btn_DeleteRecords_Click" />我还用js
// JScript 文件//判断是否选中记录，用户确认删除
function judgeSelect()
{
    var result = false;
    var allInput = document.getElementsByTagName("input");
    var loopTime = allInput.length;
    for(i = 0;i < loopTime;i++)
    {
        if(allInput[i].checked)
        {
            result = true;
            break;
        }
    }
    if(!result)
    {
        alert("请先选则要删除的记录！");
        return result;
    }
    result = confirm("你确认要删除选定的记录吗？");
    return result;
}可就是删除不了，是不是还要写后台代码？请各位大哥大姐帮下我，在这先谢谢你们啦！

解决方案 »

  1.   

    btn_DeleteRecords_Click 事件 你写东西了么
      

  2.   

    全选了之后,删除按钮事件下
    foreach(DataGridItem dgi in this.DataGird.Items)
    {
          if(((CheckBox)dgi.FindControl("你CheckBox的ID")).Checked == true)
          {
               string ID = this.DataGird.Keys[dgi.ItemIndex];//你应该把ID放到DataKeys集合里面的
                 //既然ID拿到了，去执行删除就行了
          }
    }
      

  3.   

    忘了，在循环下，记得判断是否是项和交替项
    如果是再执行
    要不会抛异常的
    GridView同理