c# - 传值+上传文件

Question

我正在使用 asp.net c# 和 Telerik 工具。我的问题是，我想传递值

of (textbox, drop down list and file uploaded details) to another asp page using java script，但是没有任何效果，我想获取文件内容并将其传递给 ??你能给我一个解决方案吗？请!

第 1 页:

<script type="text/javascript">
               function GetRadWindow() {
                    var oWindow = null;
                    if (window.radWindow) oWindow = window.radWindow;
                    else if (window.frameElement.radWindow) oWindow = window.frameElement.radWindow;
                    return oWindow;
               }
               function populateCityName(arg) {
                   var cityName = document.getElementById("cityName");
                   cityName.value = arg;
               }
                function returnToParent() {
                    //create the argument that will be returned to the parent page
                    var oArg = new Object();

                    //get the city's name           
                    oArg.cityName = document.getElementById("cityName").value;
                    //get a reference to the current RadWindow
                    var oWnd = GetRadWindow();




                    //Close the RadWindow and send the argument to the parent page
                    if (oArg.cityName) {
                        oWnd.close(oArg);
                    }
                    else {
                        alert("Please fill field");
                    }
                }
          </script>

第 2 页:

 function OnClientClose(oWnd, args) {
                //get the transferred arguments
                var arg = args.get_argument();
                if (arg) {
                    var cityName = arg.cityName;

            $get("order").innerHTML = "You chose to fly to <strong>" + cityName + "</strong>";
                }

Answer 1

尝试使用
var cityName = document.getElementById('<%= cityName.ClientID %>');而不是

var cityName = document.getElementById("cityName");