如何从文件后面的.net代码编写javascript。 [英] How to write a javascript from .net code behind file.

问题描述

您好我有一个用户控件假设a.ascx，我想在文件后面的用户控件代码中写一个javascript文件。可以任何一个请转换下面的javascript文件从后面的代码调用。



Javascript文件



< pre lang =Javascript> function xrxIdentifyCurrentBrowser（）{
var uaString = 导航 .userAgent;
return （（（uaString！= undefined ）&&（uaString！= < span class =code-keyword> null ））？（（（uaString = uaString.toLowerCase（））。indexOf（ galio）> = 0 ）？
FirstGenBrowser :(（uaString.indexOf（ webkit）> = 0 ）？ SecondGenBrowser： 未知））： 无用户代理）;
}

解决方案

我也试图帮助你解决你问题的Stack Overflow线程，问题实际上是你实际上不应该要求服务器端代码接管客户端代码。如果必须，那么您必须在启动时注册代码然后执行它。



但是，我在那里提供的另一个解决方案是你只需要确定浏览器。然后，您可以很好地使用 Request.Browser 对象来检查浏览器的属性。它将为您提供有关浏览器本身的详细信息，并可用于服务器端C＃代码。



否则，解决方案1所说的JavaScript代码必须在客户端代码环境中执行（仅限JavaScript）。您可以组成一个文件，并在实际的HTML DOM中引用该文件，或者您可以在HTML DOM中的脚本元素中编写该文件。但是，使用该Request.Browser对象在服务器端执行所有这些检查的效率仍然不高。



你可以阅读 MSDN文档 [ ^ ]关于Request.Browser和不同的成员吧暴露让你在确定浏览器时工作。



如何：检测ASP.NET中的浏览器类型和浏览器功能 Web窗体（相同的基础代码;不要惊慌） [ ^ ]

I相信代码隐藏文件只能包含C＃或VB.NET中的服务器端代码。你有2个选择：

1. 将你的功能嵌入到你的页面中：
   
   

    <   script    类型  =  text / javascript >  
     function  xrxIdentifyCurrentBrowser（）{
     var  uaString =  navigator  .userAgent; 
     return （（（uaString！=  undefined ）&&（uaString！= < span class =code-keyword> null ））？（（（uaString = uaString.toLowerCase（））。indexOf（  galio）> =  0 ）？
      FirstGenBrowser :(（uaString.indexOf（  webkit）> =  0 ）？  SecondGenBrowser： 未知））： 无用户代理）; 
   } 
    <   /  脚本 >  

2. 在站点文件夹中的某处创建包含您的函数的JS文件并插入像这样进入你的页面
   
   

    <   script     type   =  text / javascript    src   =  yourfile.js >  <   /   script   >  

Hi i have an user control suppose a.ascx, i want to write a javascript file in user control code behind file. Can any one please convert the below javascript file to call from code behind.

Javascript file

function xrxIdentifyCurrentBrowser() {
       var uaString = navigator.userAgent;
       return (((uaString != undefined) && (uaString != null)) ? (((uaString = uaString.toLowerCase()).indexOf("galio") >= 0) ?
           "FirstGenBrowser" : ((uaString.indexOf("webkit") >= 0) ? "SecondGenBrowser" : "Unknown")) : "No User Agent");
   }

解决方案

I also tried to help you out on that Stack Overflow thread of your question, the problem actually is that you shouldn't actually ask the server-side code to take over the client-side code too. If you have to then you have to register the code at the start-up and then execute it.

But, another solution, which I provided there too, is that you need to determine the browser only. Then you can make a good use the Request.Browser object, to check the properties of the browser. It would give you details about the browser itself, and can be used in the server-side C# code.

Otherwise, the JavaScript code as Solution 1 says, must be executed in the client-side code environment (by JavaScript only). You can make up a file, and reference that file in your actual HTML DOM, or you can write that in a script element in your HTML DOM. But still it won't be as much efficient as it can be to perform all these checks at the server-side using that Request.Browser object.

You can read the MSDN document[^] about the Request.Browser and different members it exposes for you to work out in determining the browsers.

How to: Detect Browser Types and Browser Capabilities in ASP.NET "Web Forms (Same underlying code; don't panic)"[^]

I believe that code-behind files can only contain server side code in C# or VB.NET. You have 2 options:

1. Embed your function into your page like this:
   

   <script type="text/javascript">
   function xrxIdentifyCurrentBrowser() {
     var uaString = navigator.userAgent;
     return (((uaString != undefined) && (uaString != null)) ? (((uaString = uaString.toLowerCase()).indexOf("galio") >= 0) ?
               "FirstGenBrowser" : ((uaString.indexOf("webkit") >= 0) ? "SecondGenBrowser" : "Unknown")) : "No User Agent");
       }
   </script>

2. Create a JS file containing your functions somewhere inside your site folder and insert it into your page like this
   

   <script type="text/javascript" src="yourfile.js"></script>

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