https://stackoverflow.com/questions/11263425/page-resolveurl-is-not-working-in-javascript

The problem, as poncha pointed out, is that as far as ASP.NET is concerned, the content delivered in your .js file is a string. It does not apply any sort of rendering before IIS delivers it. It gets the same treatment any other content file would, like a .jpg or .png.

In order to call server side methods (like ResolveUrl), you need to use the <% ... %> syntax within any page that is parsed by ASP.NET (like an .aspx or .master file).


By the way, these little code blocks go by a lot of different names:


In particular, we want a Displaying Expression with the syntax <%= ... %>, where:

the value that is entered after the equals sign is written into the current page

Knowing that, we can build our own own URL by using ResolveClientUrl() which:

returns a URL string suitable for use by the client to access resources on the Web server

To this, we'll pass in the Web Application Root Operator or ~ character, where ASP.NET:

resolves the ~ operator to the root of the current application:

By combining these, we can save the result of the displaying expression into a JavaScript variable by placing the following code on your Master Page (adapted from Joel Varty's blog):

The following script should place before the external JavaScript reference

<script type="text/javascript">
var baseUrl = '<%= Page.ResolveClientUrl("~/") %>';
</script>

Since JavaScript variables are inherently global, any other script can now access the baseUrl variable, so we can utilize it from the .js file with the following script:

function ResolveUrl(url) {
return url.replace("~/", baseUrl);
}

Now you can call ResolveUrl("~/DynamicMenu.ashx") directly from your javascript file and it will create the appropriate URL by stripping out "~/" and replacing it with the baseUrl created earlier by the server side script.


Further Reading:

ResolveUrl in external JavaScript file in asp.net project的更多相关文章

  1. Dynamically loading an external JavaScript or CSS file

    原文:   Dynamically loading an external JavaScript or CSS file 通过javascript动态加载css文件和javascript文件,主要是通 ...

  2. JavaScript应用于asp开发场景

    JavaScript应用于asp开发场景 演示代码示例: <%Path="../"%> <!--#include file="../../Inc/Con ...

  3. 使用 JavaScript File API 实现文件上传

    概述 以往对于基于浏览器的应用而言,访问本地文件都是一件头疼的事情.虽然伴随着 Web 2.0 应用技术的不断发展,JavaScript 正在扮演越来越重要的角色,但是出于安全性的考虑,JavaScr ...

  4. Post Complex JavaScript Objects to ASP.NET MVC Controllers

    http://www.nickriggs.com/posts/post-complex-javascript-objects-to-asp-net-mvc-controllers/     Post ...

  5. 网页绘制图表 Google Charts with JavaScript #2 ....与ASP.NET网页结合 (ClientScriptManager.RegisterStartupScript 方法)

    此为文章备份,原文出处(我的网站) 网页绘制图表 Google Charts with JavaScript #2 ....与ASP.NET网页结合 (ClientScriptManager.Regi ...

  6. 客户端的javascript改变了asp.net webform页面控件的值,后台代码中如何获取修改后的值。

    客户端的javascript改变了asp.net webform页面控件的值,后台代码中如何获取修改后的值.     无论是什么的html控件,只要加上了runat="server" ...

  7. AndroidStudio报错:Emulator: I/O warning : failed to load external entity "file:/C:/Users/Administrator/.AndroidStudio3

    场景 在进行Android Studio的.Android Studio目录从C盘修改为其他目录后,新建App启动提示: Emulator: I/O warning : failed to load ...

  8. jquery file upload + asp.net 异步多文件上传

    百度了很久,国内一直 找不到 使用jquery file upload 插件 +asp.net 的相关代码 一开始使用 jquery uploadify ,一款基于 flash的插件,但是不支持 Sa ...

  9. C#和JavaScript交互(asp.net前台和后台互调)总结 (转)

    http://www.cnblogs.com/poleices/archive/2011/02/24/1963727.html C#代码与javaScript函数的相互调用: 1.如何在JavaScr ...

随机推荐

  1. 2018湖南省第14届大学生计算机程序设计竞赛 A字符画

    Description 读入 w,请输出 2018 的字符画,两个数字之间有 w 个空格.具体格式请参考样例输出. 1 ≤ w ≤ 2018 Input 输入文件只包含 1 个整数 w. Output ...

  2. 笔试算法题(18):常数时间删除节点 & 找到仅出现一次的两个数字

    出题:给定链表的头指针和一个节点指针,要求在O(1)的时间复杂度下删除该节点 分析: 如果需要删除的节点为A,其前序节点为A-,其后续节点为A+,所以删除A之后,需要使得A-的下一个节点就是A+,常规 ...

  3. mySQL--找出各科最高成绩

    //找出各科最高成绩create table gradeMax(id int primary key auto_increment,name varchar(20),subject varchar(2 ...

  4. Python:socket实现ftp程序

    刚开始学习socket编程,还不是特熟练,码了好长时间,中间遇到许多问题,记录一下用socketserver写ftp server端: #!/usr/bin/env python import soc ...

  5. 爬虫框架urllib 之(二) --- urllib基础

    urllib 官方文档:https://docs.python.org/zh-cn/3/library/urllib.html urllib介绍 Urllib是python内置的HTTP请求库,是py ...

  6. 【BZOJ 1202】 [HNOI2005]狡猾的商人(枚举区间也可行)

    题链:http://www.lydsy.com/JudgeOnline/problem.php?id=1202 其实也可以不使用加权并查集,通过画图可以发现,一个长区间和其包含的区间能够算出一个新区间 ...

  7. 集训第六周 数学概念与方法 概率 数论 最大公约数 G题

    Description There is a hill with n holes around. The holes are signed from 0 to n-1. A rabbit must h ...

  8. pcb中几个层的解释

    阻焊层(Solder Mask):又称为绿油层,是PCB的非布线层,用于制成丝网漏印板,将不需要焊接的地方涂一层阻焊物质,防止焊接PCB时焊锡在高温下的流动性.在阻焊层上预留的焊盘大小,要比实际焊盘大 ...

  9. 1002. A+B for Polynomials (25) (浮点数判0)

    This time, you are supposed to find A+B where A and B are two polynomials. Input Each input file con ...

  10. POJ 2479 两段连续最大和

    题目大意: 在一组数中,找到连续的两段 , 是这两段相加和达到最大 这里利用dp[2][N]的数组保存所有的状态 dp[0][i]表示取到第i个数时只取了一段的最大和,第i个数是一定要被取到的 dp[ ...