Javascript无法在asp.net用户控件中运行 [英] Javascript is not working in asp.net user control

问题描述

我有一个包含许多javascript函数的用户控件。当我将这个添加到我的项目中时，一些功能正常工作但有些没有。

我使用下面的脚本来处理文本框的按键事件

I have a user control with many javascript functions. When I am adding this to my project ,some of the fuctions are working properly but some not.
I am using the below script for keypress event of a textbox

<script type="text/javascript">
                        var to; // variable to which we assign setTimeout function
                        var prm = Sys.WebForms.PageRequestManager.getInstance(); // Page Request Manager object

                        function onTxtKeyUp(e, buttonid) {

                            if (e.KeyCode != 9)
                                to = setTimeout(function () {
                                    performSearch(buttonid);
                                }, 300)
                        }
                        function onTxtKeyDown() {
                            if (to) clearTimeout(to);
                        }
                        function performSearch(buttonid) {

                            if (prm.get_isInAsyncPostBack) {
                                prm.abortPostBack();
                            }

                            //             $get("<%=lblStatus.ClientID %>").innerHTML = "Loading...";
                            __doPostBack(buttonid, "");
                            //           __doPostBack("<%=btnSearch.UniqueID %>", "");
                        }
                  </script>

及其正常工作。下一个用于双击的是

and its working properly. the next I am using for a doubleclick is

<script type="text/javascript">
    function clickButton(e, buttonid) {
        debugger;
        var evt = e ? e : window.event;
        var bt = document.getElementById(buttonid);
        if (bt) {
            bt.click();
        }
    }
      </script>

且无效

and it is not working

推荐答案

get（<％ = lblStatus.ClientID ％ > ）。innerHTML =正在加载......;
__doPostBack（buttonid，）;
// __doPostBack（<％ = btnSearch.UniqueID ％> ， ）;
}
< / script >

get("<%=lblStatus.ClientID %>").innerHTML = "Loading..."; __doPostBack(buttonid, ""); // __doPostBack("<%=btnSearch.UniqueID %>", ""); } </script>

及其正常工作。下一个用于双击的是

and its working properly. the next I am using for a doubleclick is

<script type="text/javascript">
    function clickButton(e, buttonid) {
        debugger;
        var evt = e ? e : window.event;
        var bt = document.getElementById(buttonid);
        if (bt) {
            bt.click();
        }
    }
      </script>

且无法使用

and it is not working

我可以看到你的用户控件有一个问题。



既然你没有外化你的用户控件的javascript，那么如果用户控件是在页面中多次使用，然后javascript代码将重复。

I can see one issue with your usercontrol.

Since you have not externalized your user control's javascript, so if the user control is used mutiple times in a page then the javascript code will get repeated.

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