jquery根据前台title属性获取输入的值后台调用

<script type="text/javascript" src="/_layouts/15/VisualWebPartProject1/jquery.js"></script>
<script type="text/javascript">

 

        function Close() {
      
            var msg = $("input[title=aaa]").val();//获取title名为aaa的值
            if (msg != "") {
                $("input[id*=hf]").val(msg);//hf就是HiddenField1
                return true;
            }
            else {
                alert("值为空");
                return false;
            }
      
      
            alert("操作成功")
     
            window.location = "http://amid01110/_layouts/15/start.aspx#/Lists/test2/AllItems.aspx";
        }
    

    


</script>


<a id="id" name="name">点击</a>
<asp:Label ID="Label1" runat="server" Text="请选在推送到的文件路径"></asp:Label>
<asp:DropDownList ID="dwlist" runat="server">
</asp:DropDownList>
&nbsp;<asp:Button ID="Button1" runat="server"  OnClientClick="return Close();" OnClick="Button1_Click" Text="推送"  />

<asp:HiddenField ID="hf" runat="server" />

后台

Page.ClientScript.RegisterStartupScript(GetType(), "", "alert('值：" + hf.Value + "');", true);