ASP.Net Master Page and File path issues - asp.net

I'm trying to add a script reference to jQuery in my master page so that it will work for any page. It currently looks like this
<script type="text/javascript" src="jquery.js"></script>
The problem is that the path is always relative to the executing aspx page so this will only work if the "jquery.js" file is located in the same folder. To make it work I have to change the line to:
<script type="text/javascript" src="../../jquery.js"></script>
This is obviously less than ideal because it will only work for pages that are two levels deep from the root folder. If I try the following, IIS throws an error about an unexpected character.
<script runat="server" type="text/javascript" src="~/jquery.js"></script>
Any ideas?
EDIT: I forgot to mention as well that the script MUST be in the head tag
The current top answer throws a "ASP.NET Ajax client-side framework failed to load." error when I add it to my master page. Its thrown from javascript and not the .Net compiler. If I move the ScriptManager to the head section where it should be I get a compile error about the ScriptManager needing to be inside a form tag.
The third answer throws a "Illegal characters in path." exception from the compiler
EDIT 2: When I add that line to my head tag I get this error from IIS.
The Controls collection cannot be modified because the control contains code blocks (i.e. <% ... %>)
SOLVED: I took the edited response from the answer below and put it inside an asp:ContentPlaceHolder element

You could use a ScriptManager:
<asp:ScriptManager ID="ScriptManager1" runat="server">
<Scripts>
<asp:ScriptReference Path="~/jquery.js" />
</Scripts>
</asp:ScriptManager>
EDIT: If you absolutely need this in your <head> section, you could do something like:
<head>
<script type="text/javascript"
src="<%= Page.ResolveClientUrl("~/jquery.js") %>"></script>
</head>
EDIT 2: According to the comments, if you are observing that
The Controls collection cannot be modified because the control contains code blocks (i.e. <% ... %>)
you may need to change the above to use the data-binding syntax:
<head>
<script type="text/javascript"
src="<%# Page.ResolveClientUrl("~/jquery.js") %>"></script>
</head>

Try <%# instead of <%= in Master page under head section
<script type="text/javascript"
src="<%# ResolveUrl("~/YourScriptFolder/YourJQueryOrJavascript.js") %>">
</script>
Then in Code Behind of Master page under Page_Load Event
Page.Header.DataBind();
Now you are good to go with either jQuery and JavaScript as well as CSS just you need to change your path in ResolveUrl which file you want to handle CSS, JavaScript, jQuery.

If you're not going to us asp:ScriptManager or absolute paths then you can do it like this:
<script runat="server" type="text/javascript"
src='<%= Page.ResolveUrl("~/jquery.js") %>'></script>

I do not know whether you guys found the solution to your problem or not. I was facing the same problem and going nuts to figure out why do I get "jQuery is undefined" error on the plugins i use. I tried all the solutions i get from the internet but no luck at all.
But, suddenly something splash on my mind that may be the script files should be in order. So, I moved the jquery referece to first position and everything start working like charm.
Remember guys, if you're using any plugins with jquery, make sure you use the folloing order of setting reference to those fiels.
reference to the jquery library
reference to the other subsequent plug-in libraries and so on...
e.g.:
"script src="js/jquery-1.3.2.min.js" type="text/javascript"...
"script src="js/jqDnR.min.js" type="text/javascript"...
"script src="js/jquery.jqpopup.min.js" type="text/javascript"...
"script src="js/jquery.bgiframe.min.js" type="text/javascript"...
Always make sure you must put the jquery reference to first and then the subsequent libraries.
Hope, this solves your problem especially when you use with MasterPages. Its very strange that it works no matter what order you use when you don't use MasterPages but when you do, then it somehow requres the proper order.
Good luck and happy coding,
Vincent D'Souza

Look at How to Run a Root “/”. This should fix all your issues regarding unresolved .js file paths. You basically reconfigure the VS Dev server to run your application as localhost:port/ as opposed to the regular localhost:port/application name/ making name resolution work the same way as it does on IIS.

For absolute path of the file for any page use it following:
<script type="text/javascript" src="<%= Page.ResolveClientUrl("~/jquery.js") %>"></script>

<script type="text/javascript" src="/full/path/to/jquery.js"></script>

If this script tag goes directly to the browser, then you unlikely can substitute your site's root there. At least not on the server. So you can:
Deploy site to the root of domain
name and use absolute paths
(simplest solution).
Insert this
link with server control.
Preprocess resulting HTML before
sending it to the client (with
HttpResponse.Filter).

You can also use <base> HTML tag:
<base href="http://www.domain.com"></base>
and then all the links in header section are relative to base address:
<script type="text/javascript" src="scripts/jquery.js"></script>
It's often useful when you have multiple publishing destinations, like local dev web server, demo server, etc. You just replace that base URL.

<body>
<script language="javascript" src='<%= this.ResolveClientUrl("~/full/path/to/jquery.js") %>' type="text/javascript"></script>
</body>

Related

ASP.NET jQuery Datepicker Issue - What am I missing?

This was working on Friday, and now isn't. I've got this at the beginning of a UserControl:
<link type="text/css" href="/App_Themes/css/ui-lightness/jquery-ui-1.8.11.custom.css" rel="stylesheet" />
<script src="/Scripts/jquery-1.5.1.min.js" type="text/javascript"></script>
<script src="/Scripts/jquery-ui-1.8.11.custom.min.js" type="text/javascript"></script>
<script type="text/javascript">
$(document).ready(function () {
$("#MainContent_ucSearchControl_dpPickupStart").datepicker();
$("#MainContent_ucSearchControl_dpPickupEnd").datepicker();
});
</script>
And further down, this:
<td><asp:TextBox id="dpPickupStart" runat="server" style="width: 65px"/></td>
<td><asp:TextBox id="dpPickupEnd" runat="server" style="width: 65px"/></td>
Which results in (in the rendered page) input controls with:
name="ctl00$ctl00$MainContent$ucSearchControl$dpPickupStart" id="MainContent_ucSearchControl_dpPickupStart"
name="ctl00$ctl00$MainContent$ucSearchControl$dpPickupEnd" id="MainContent_ucSearchControl_dpPickupEnd"
And yet, every time the page loads, I get an Object Expected javascript error which points to the $(document).ready location.
What am I missing?
EDIT: Firebug is reporting that:
$ is not defined
[Break On This Error] $(document).ready(function () {
Being a user control you cannot guarantee that the relative path to your JS files will always be correct depending on the location of the parent page in the file system hierarchy.
Therefore change you JS script tags as follows to use the Control.ResolveUrl method which converts a URL into one that is usable on the requesting client.
<script src='<%=ResolveUrl("~/Scripts/jquery-1.5.1.min.js")%>' type="text/javascript"></script>
<script src='<%=ResolveUrl("~/Scripts/jquery-ui-1.8.11.custom.min.js")%>' type="text/javascript"></script>
Or reference from a CDN for added performace bonus of caching.
jQuery hosted on google
jQuery UI hosted on google
That error is caused due to Jquery not available. I think Swaff's solution should work(+1). Check if you have the Jquery-1.5.1.min.js file is available in Scripts folder of your solution. Or it could also be that your Scripts folder is renamed.
HTH.

registering a javascript file from a master page

Is there any reason why registering a javascript file from the head tags of an ASP.NET master page wouldn't work? For example, I have the following (plus many other) file referece:
<script type="text/javascript" src="/js/jquery/jquery-1.4.2.min.js"></script>
but jquery (and every other JS reference) doesn't work when the page loads.
Any thoughts? Thanks.
The src attribute is relative, try
<script type="text/javascript" src="/js/jquery/jquery-1.4.2.min.js"></script>
and see if that fixes your problem
If that doesn't work, you can try this:
<script type="text/javascript" src="<%# ResolveUrl("~/js/jquery/jquery-1.4.2.min.js") %>"></script>
and in your Page Load handler in the master page add this code:
Page.Header.DataBind();
The masterpage can have script resources just like a normal HTML page; you'll probably want to check the problem with an HTTP debugger like FireBug or Fiddler2, if phsr is correct you'll see the requests failing with an ErrorCode.
Using master pages will not affect the loading of JavaScript files. Your problem is either the location of the file or the script tag is formatted incorrectly.

Problem in reference js file for IE7/8

I have a very strange problem in an ASP.NET page, the following reference of JavaScript file works well in IE6
<script src='~/Scripts/xxx.js' type="text/javascript"></script>
But not working in IE7/8, I got object required error when load the page
change to the following works:
<script src='<%# ResolveUrl ("~/Scripts/xxx.js") %>' type="text/javascript"></script>
Can anyone explain? Thanks.
~/ is not going to be anything the browser knows about, it needs to be a relative path or an absolute one. The ResolveUrl method take an asp.net path and creates one the browser can understand.
Use this:
<script src="<%= Response.ApplyAppPathModifier("~/Scripts/xxx.js") %>" type="text/javascript"></script>
Basically, the "~" is a way to refer to the application's home directory, but it is only understood by ASP.NET. You can call the function I listed above to translate that into a real HTTP path.

jQuery calls in external js file with MasterPages

I am using ASP.NET 3.5 with MasterPages. My master page has the script references to jquery and jquery UI. My web page that uses the master page has a script reference for a custom javascript file for that page. This javascript file has jquery calls in it (i.e. document.ready --> set up input boxes as calendars).
When I run the website in debug from Visual Studio, the input boxes are not set as calendars. However, if I copy the script from the external file and include it in a script block in the web page, the input box becomes a calendar.
I also have an element in the child page (not sure if that makes a difference). I have referenced the external javascript file in the ScriptManager and outside of the ScriptManager and neither work.
Why does jQuery not work in an external javascript file when the jQuery script reference resides in the master page?
Any help would be appreciated.
Thanks
MASTER PAGE CODE
<head id="Head1" runat="server">
<title>Customer Agreement Lifecycle Management System </title>
<link rel="stylesheet" type="text/css" href="~/calms.css" />
<link href="css/ui-lightness/jquery-ui-1.7.1.custom.css" rel="stylesheet" type="text/css" />
<script type="text/javascript" src="<%=ResolveUrl("~/js/jquery-1.3.2.min.js") %>"></script>
<script type="text/javascript" src="<%=ResolveUrl("~/js/jquery-ui-1.7.1.custom.min.js") %>"></script>
</head>
CHILD PAGE CODE
<asp:Content ID="Content1" ContentPlaceHolderID="ContentPlaceHolder1" Runat="Server">
<script src="<%=ResolveUrl("~/js/rule.js") %>" type="text/javascript"></script>
<asp:ScriptManager ID="ScriptManager1" runat="server">
</asp:ScriptManager>
I want to thank everyone for their suggestions but I made a "bone-headed" mistake. The tags were mistakenly still in the external js file. Once removed, everything works as expected. I apologize for taking up everyone's time (and somewhat embarrassed).
Thanks.
Is the external script include below the jquery script? Maybe it's the order in which the scripts are being loaded and run...
Are you sure the reference to the jQuery file in the child object appears in the head of the HTML document?
If not, put a ContentPlaceHolder in the tag and put the references you need in each child page.

Usercontrol access Javascript from a Content's Page's Master Page

Hello all I have a problem. I have a masterpage that all of my Content pages inherit from. Within this masterpage I have a script tag pointing to the Javascript file folder ~/Scripts/validation.js
On my content pages I use different usercontrols that require the use of many of the functions within the validation.js file however if I dont put the <script> tag and the Javascript functions within a contentholder on the contentpage the usercontrols do not see these functions and I get errors like OnNameValidation is not defined.
Of course I can copy the Javascript code into all of the pages but that's 30+ pages and a maintenance nightmare if I find a bug in one of the Javascript functions.
So the question (if you haven't already figured out from my long dissertation) is how can I declare the script tag with the path to the validation.js file so that contentpages and their usercontrols etc. can access the functions/code.
What you are trying to do should work, so I suspect that the path to your javascript file is wrong (without seeing your html code I can only assume). Keep in mind that you can only reference the javascript file like this: "~/Scripts/validation.js" if you have the link in a HEAD runat="server" tag. Without the runat="server" it won't find the file. You would have to do something like "../scripts/validation.js"
As a test I would try to call your javascript function in the masterpage, so you can rule out a bad file reference.
I picked up this tip from ScottGu here.
Add this to you user control which enables Intellisense in user controls but always evaluates false:
<% if (false) { %>
<script src="/Scripts/validation.js" type="text/javascript"></script>
<% } %>
I am currently doing this in my site by going to the Source code on the master page and putting the following in the head and outside of the ContentPlaceHolder.
<head>
<asp:ContentPlaceHolder ID="HeadContent" runat="server">
</asp:ContentPlaceHolder>
<script src="CP.js" type="text/javascript"></script>
</head>
The path you are assigning for your js file is probably not matching in all the pages.
script src="../JavaScript/Scriptaculous/scriptaculous.js"
It should have something like above this if you have separate folder for Scripts, MasterPages, Pages & Controls.

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