The most complete article I&#39;ve ever found about this topic is [ASP.NET and jQuery to the Max][1].

It avoids update panel, script manager and viewstate.


  [1]: https://www.codeproject.com/Articles/95525/ASP-NET-and-jQuery-to-the-Max

Here are a few links: 

 - [A Look Into JQuery API (archived)][1]
   
 - [Using FireBug Profiler to Dig Deep into MS AJAX and JQuery API
   (archived)][2]
   
 - [On Demand Loading Using JQuery Ajax API (archived)][3]

  [1]: https://web.archive.org/web/20090414104717/http://www.highoncoding.com/Articles/407_A%20Look%20Into%20JQuery%20Ajax%20API.aspx
  [2]: https://web.archive.org/web/20090609194456/http://azamsharp.com/Posts/83_Using_FireBug_Profiler_to_Dig_Deep_into_MS_AJAX_and_JQuery_API.aspx
  [3]: https://web.archive.org/web/20090217113039/http://azamsharp.com/Posts/74_On_Demand_Loading_Using_JQuery_Ajax_API.aspx

Damien Edwards just gave an awesome talk on this topic at the recent MIX11 conference. You can [watch the video online (archived - click any download links below the player)][1] and download his code. He developed a jquery-UI extenders project that works the same way that ASP.NET AJAX toolkit works, but just extends normal controls/tags/elements with jQuery functionality. The project is on [CodePlex (archived)][2].


  [1]: https://web.archive.org/web/20110724072836/http://channel9.msdn.com/events/MIX/MIX11/FRM12
  [2]: https://web.archive.org/web/20190801214144/https://archive.codeplex.com/?p=jquery

How can polymorphism be described in an easy-to-understand way?

We can find a lot of information about the subject on the Internet and books, like in *[Type polymorphism][1]*. But let&#39;s try to make it as simple as we can.

  [1]: http://en.wikipedia.org/wiki/Type_polymorphism


Try to describe polymorphism as easy as you can

I&#39;m creating a bunch of migrations, some of which are standard &quot;create table&quot; or &quot;modify table&quot; migrations, and some of which modify data.  I&#39;m using my actual ActiveRecord models to modify the data, a la:

    Blog.all.each do |blog|
      update_some_blog_attributes_to_match_new_schema
    end

The problem is that if I load the Blog class, then modify the table, then use the Blog class again, the models have the old table definitions, and cannot save to the new table.  Is there a way to reload the classes and their attribute definitions so I can reuse them?

How do I force ActiveRecord to reload a class?

Anyone know of a link to a good article/tutorial for getting started using jQuery for AJAX calls rather than ASP.NET AJAX? I&#39;m trying to avoid using UpdatePanels entirely in this app, which I haven&#39;t been able to accomplish in the past.

Using jQuery for AJAX with ASP.NET Webforms

<p>Anyone know of a link to a good article/tutorial for getting started using jQuery for AJAX calls rather than ASP.NET AJAX? I'm trying to avoid using UpdatePanels entirely in this app, which I haven't been able to accomplish in the past.</p>


I&#39;m taking my first crack at [Ajax][1] with jQuery. I&#39;m getting my data onto my page, but I&#39;m having some trouble with the JSON data that is returned for Date data types. Basically, I&#39;m getting a string back that looks like this:

    /Date(1224043200000)/

From someone totally new to JSON - How do I format this to a short date format? Should this be handled somewhere in the jQuery code? I&#39;ve tried the `jQuery.UI.datepicker` plugin using `$.datepicker.formatDate()` without any success.

FYI: Here&#39;s the solution I came up with using a combination of the answers here:

    function getMismatch(id) {
      $.getJSON(&quot;Main.aspx?Callback=GetMismatch&quot;,
        { MismatchId: id },

        function (result) {
          $(&quot;#AuthMerchId&quot;).text(result.AuthorizationMerchantId);
          $(&quot;#SttlMerchId&quot;).text(result.SettlementMerchantId);
          $(&quot;#CreateDate&quot;).text(formatJSONDate(Date(result.AppendDts)));
          $(&quot;#ExpireDate&quot;).text(formatJSONDate(Date(result.ExpiresDts)));
          $(&quot;#LastUpdate&quot;).text(formatJSONDate(Date(result.LastUpdateDts)));
          $(&quot;#LastUpdatedBy&quot;).text(result.LastUpdateNt);
          $(&quot;#ProcessIn&quot;).text(result.ProcessIn);
        }
      );

      return false;
    }

    function formatJSONDate(jsonDate) {
      var newDate = dateFormat(jsonDate, &quot;mm/dd/yyyy&quot;);
      return newDate;
    }

This solution got my object from the callback method and displayed the dates on the page properly using the date format library.

  [1]: http://en.wikipedia.org/wiki/Ajax_%28programming%29


How do I format a Microsoft JSON date?

I have an ASP.NET website and when I press F5 it automatically attaches to the ASP.NET Development Server, how do I attach to IIS worker process instead when I press F5?





How do I attach the debugger to IIS instead of ASP.NET Development Server?

I have a ASP.NET `GridView` with a column mapped to a boolean. I want do display &quot;Yes&quot;/&quot;No&quot; instead of &quot;True&quot;/&quot;False&quot;. Well actually I want &quot;Ja&quot;/&quot;Nej&quot; (in Danish).

Is this possible? 


    &lt;asp:gridview id=&quot;GridView1&quot; runat=&quot;server&quot; autogeneratecolumns=&quot;false&quot;&gt;
        &lt;columns&gt;
            ...
            &lt;asp:boundfield headertext=&quot;Active&quot; datafield=&quot;Active&quot; dataformatstring=&quot;{0:Yes/No}&quot; /&gt;
            ...
        &lt;/columns&gt;
    &lt;/asp:gridview&gt;

Can I convert a boolean to Yes/No in a ASP.NET GridView

I&#39;m new to .Net and do not understand the difference. Can someone point me in the right direction?

What is the difference between an asp.net web method and a wcf service?

What is difference between `Server.Transfer` and `Response.Redirect`?

- What are advantages and disadvantages of each?
- When is one appropriate over the other?
- When is one not appropriate?

Server.Transfer Vs. Response.Redirect

I have a bit of code where I am looping through all the select boxes on a page and binding a `.hover` event to them to do a bit of twiddling with their width on `mouse on/off`.

This happens on page ready and works just fine.

The problem I have is that any select boxes I add via Ajax or DOM after the initial loop won&#39;t have the event bound.

I have found this plugin ([jQuery Live Query Plugin][1]), but before I add another 5k to my pages with a plugin, I want to see if anyone knows a way to do this, either with jQuery directly or by another option.

[1]: http://brandonaaron.net/docs/livequery/#getting-started

Event binding on dynamically created elements?

I have a form with multiple fields that I&#39;m validating (some with methods added for custom validation) with J&#246;rn Zaeffere&#39;s excellent jQuery Validation plugin. How do you circumvent validation with specified submit controls (in other words, fire validation with some submit inputs, but do not fire validation with others)? This would be similar to ValidationGroups with standard ASP.NET validator controls.

My situation:

It&#39;s with ASP.NET WebForms, but you can ignore that if you wish. However, I am using the validation more as a &quot;recommendation&quot;: in other words, when the form is submitted, validation fires but instead of a &quot;required&quot; message displaying, a &quot;recommendation&quot; shows that says something along the line of &quot;you missed the following fields.... do you wish to proceed anyways?&quot; At that point in the error container there&#39;s another submit button now visible that can be pressed which would ignore the validation and submit anyways. How to circumvent the forms .validate() for this button control and still post?

The Buy and Sell a House sample at http://jquery.bassistance.de/validate/demo/multipart/ allows for this in order to hit the previous links, but it does so through creating custom methods and adding it to the validator. I would prefer to not have to create custom methods duplicating functionality already in the validation plugin.

The following is a shortened version of the immediately applicable script that I&#39;ve got right now:

    var container = $(&quot;#&lt;%= Form.ClientID %&gt; div.validationSuggestion&quot;);
            
    $(&#39;#&lt;%= Form.ClientID %&gt;&#39;).validate({          
        errorContainer: container,
        errorLabelContainer: $(&quot;ul&quot;,container),
        rules: {
            &lt;%= YesNo.UniqueID %&gt;: { required: true },
            &lt;%= ShortText.UniqueID %&gt;: { required: true } // etc.

        },
        messages: {
            &lt;%= YesNo.UniqueID %&gt;: &#39;A message.&#39;,
            &lt;%= ShortText.UniqueID %&gt;: &#39;Another message.&#39; // etc.
        },
        highlight: function(element, errorClass) {
            $(element).addClass(errorClass);
            $(element.form).find(&quot;label[for=&quot; + element.id + &quot;]&quot;).addClass(errorClass);
            $(element.form).find(&quot;label[for=&quot; + element.id + &quot;]&quot;).removeClass(&quot;valid&quot;);
        },
        unhighlight: function(element, errorClass) {
            $(element).removeClass(errorClass);
            $(element.form).find(&quot;label[for=&quot; + element.id + &quot;]&quot;).removeClass(errorClass);
            $(element.form).find(&quot;label[for=&quot; + element.id + &quot;]&quot;).addClass(&quot;valid&quot;);
        },
        wrapper: &#39;li&#39;
    }); 

jQuery Validation plugin: disable validation for specified submit buttons

We are using jQuery [thickbox][1] to dynamically display an iframe when someone clicks on a picture.  In this iframe, we are using [galleria][2] a javascript library to display multiple pictures.

The problem seems to be that `$(document).ready` in the iframe seems to be fired too soon and the iframe content isn&#39;t even loaded yet, so galleria code is not applied properly on the DOM elements.  `$(document).ready` seems to use the iframe parent ready state to decide if the iframe is ready.

If we extract the function called by document ready in a separate function and call it after a timeout of 100&amp;nbsp;ms. It works, but we can&#39;t take the chance in production with a slow computer.

    $(document).ready(function() { setTimeout(ApplyGalleria, 100); });

My question: which jQuery event should we bind to to be able to execute our code when the dynamic iframe is ready and not just it&#39;s a parent?

  [1]: http://jquery.com/demo/thickbox/
  [2]: http://devkick.com/lab/galleria/demo_01.htm


jQuery .ready in a dynamically inserted iframe

Since I&#39;ve started to use jQuery, I have been doing a lot more JavaScript development.

I have the need to parse different date formats and then to display them into another format.

Do you know of any good tool to do this?

Which one would you recommend?

Best JavaScript Date Parser &amp; Formatter?

I&#39;m calling a web service that returns an array of objects in JSON.  I want to take those objects and populate a div with HTML.  Let&#39;s say each object contains a url and a name.

If I wanted to generate the following HTML for each object:
    
    &lt;div&gt;&lt;img src=&quot;the url&quot; /&gt;the name&lt;/div&gt;

Is there a best practice for this? I can see a few ways of doing it:

1. Concatenate strings
2. Create elements
3. Use a templating plugin
4. Generate the html on the server, then serve up via JSON.


Is there a best practice for generating html with javascript

I am trying to create controller actions which will return either JSON or partial html depending upon a parameter. What is the best way to get the result returned to an MVC page asynchronously?

ASP.NET MVC controller actions that return JSON or partial html

Is it possible to prevent the browser from following redirects when sending XMLHttpRequest-s (i.e. to get the redirect status code back and handle it myself)?


Prevent redirection of Xmlhttprequest

I&#39;m having difficulty parsing some JSON data returned from my server using jQuery.ajax()

To perform the AJAX I&#39;m using:

    $.ajax({
      url: myUrl,
      cache: false,
      dataType: &quot;json&quot;,
      success: function(data){
        ...
      },
      error: function(e, xhr){
        ...
      }
    });  

And if I return an array of items then it works fine:

    [ { title: &quot;One&quot;, key: &quot;1&quot; }, { title: &quot;Two&quot;, key: &quot;2&quot; } ]

The success function is called and receives the correct object.

However, when I&#39;m trying to return a single object:

    { title: &quot;One&quot;, key: &quot;1&quot; } 

The error function is called and xhr contains &#39;parsererror&#39;.  I&#39;ve tried wrapping the JSON in parenthesis on the server before sending it down the wire, but it makes no difference.  Yet if I paste the content into a string in Javascript and then use the eval() function, it evaluates it perfectly.

Any ideas what I&#39;m doing wrong?

Anthony

jQuery won&#39;t parse my JSON from AJAX query

Similar to this question: https://stackoverflow.com/questions/621340/checkboxes-on-rails

What&#39;s the correct way of making radio buttons that are related to a certain question in Ruby on Rails? At the moment I have:

    &lt;div class=&quot;form_row&quot;&gt;
        &lt;label for=&quot;theme&quot;&gt;Theme:&lt;/label&gt;
        &lt;br&gt;&lt;%= radio_button_tag &#39;theme&#39;, &#39;plain&#39;, true %&gt; Plain
        &lt;br&gt;&lt;%= radio_button_tag &#39;theme&#39;, &#39;desert&#39; %&gt; Desert
        &lt;br&gt;&lt;%= radio_button_tag &#39;theme&#39;, &#39;green&#39; %&gt; Green
        &lt;br&gt;&lt;%= radio_button_tag &#39;theme&#39;, &#39;corporate&#39; %&gt; Corporate
        &lt;br&gt;&lt;%= radio_button_tag &#39;theme&#39;, &#39;funky&#39; %&gt; Funky
    &lt;/div&gt;

I also want to be able to automatically check the previously selected items (if this form was re-loaded). How would I load the params into the default value of these?

Radio buttons on Rails

I have the following layout for my mvc project:

 - /Controllers
  - /Demo
  - /Demo/DemoArea1Controller
  - /Demo/DemoArea2Controller
  - etc...
 - /Views
  - /Demo
  - /Demo/DemoArea1/Index.aspx
  - /Demo/DemoArea2/Index.aspx

However, when I have this for `DemoArea1Controller`:

    public class DemoArea1Controller : Controller
    {
        public ActionResult Index()
        {
            return View();
        }
    }

I get the &quot;The view &#39;index&#39; or its master could not be found&quot; error, with the usual search locations.

How can I specify that controllers in the &quot;Demo&quot; namespace search in the &quot;Demo&quot; view subfolder?

Can I specify a custom location to &quot;search for views&quot; in ASP.NET MVC?

Some site I&#39;m programming is using both ASP.NET MVC and WebForms. 

I have a partial view and I want to include this inside a webform. The partial view has some code that has to be processed in the server, so using Response.WriteFile don&#39;t work.
It should work with javascript disabled.

How can I do this?

How to include a partial view inside a webform

I would expect this:

    &lt;asp:CheckBox    ID=&quot;CheckBox1&quot;    runat=&quot;server&quot; CssClass=&quot;myClass&quot; /&gt;
    &lt;asp:RadioButton ID=&quot;RadioButton1&quot; runat=&quot;server&quot; CssClass=&quot;myClass&quot; /&gt;
    &lt;asp:TextBox     ID=&quot;TextBox1&quot;     runat=&quot;server&quot; CssClass=&quot;myClass&quot; /&gt;

...to render like this *(with some attributes removed for simplicity)*:

    &lt;input id=&quot;CheckBox1&quot;    type=&quot;checkbox&quot; class=&quot;myClass&quot; /&gt;
    &lt;input id=&quot;RadioButton1&quot; type=&quot;radio&quot;    class=&quot;myClass&quot; /&gt;
    &lt;input id=&quot;TextBox1&quot;     type=&quot;text&quot;     class=&quot;myClass&quot; /&gt; 

...when in fact, the `RadioButton` and `CheckBox` get wrapped with a `span` tag and the CSS class gets applied there.

    &lt;span class=&quot;myClass&quot;&gt;&lt;input id=&quot;CheckBox1&quot;    type=&quot;checkbox&quot; /&gt;&lt;/span&gt; 
    &lt;span class=&quot;myClass&quot;&gt;&lt;input id=&quot;RadioButton1&quot; type=&quot;radio&quot;    /&gt;&lt;/span&gt; 
    &lt;input type=&quot;text&quot; id=&quot;TextBox1&quot; class=&quot;myClass&quot; /&gt; 

Is there a reason for this and is there a way to avoid it? It makes jQuery selectors ugly since you can&#39;t catch all of them with:

    $(&quot;input.myClass&quot;)

Granted it is just going to:

    $(&quot;input.myClass, span.myClass input&quot;)

...but that is ugly. I could write my own selector, but again not as elegant as it should be.


Why does ASP.Net RadioButton and CheckBox render inside a Span?

I have a web app where the user needs to upload a .zip file.  On the server-side, I am checking the mime type of the uploaded file, to make sure it is `application/x-zip-compressed` or `application/zip`.

This worked fine for me on Firefox and IE.  However, when a coworker tested it, it failed for him on Firefox (sent mime type was something like &quot;`application/octet-stream`&quot;) but worked on Internet Explorer.  Our setups seem to be identical: IE8, FF 3.5.1 with all add-ons disabled, Win XP SP3, WinRAR installed as native .zip file handler (not sure if that&#39;s relevant).

So my question is: **How does the browser determine what mime type to send?**

&lt;i&gt;Please note: I know that the mime type is sent by the browser and, therefore, unreliable.  I am just checking it as a convenience--mainly to give a more friendly error message than the ones you get by trying to open a non-zip file as a zip file, and to avoid loading the (presumably heavy) zip file libraries.&lt;/i&gt;

Content Type	Original Author	Original Content on Stackoverflow
Question	Mark Struzinski	View Question on Stackoverflow
Solution 1 - asp.net	Steve Nelson	View Answer on Stackoverflow
Solution 2 - asp.net	azamsharp	View Answer on Stackoverflow
Solution 3 - asp.net	Eric Falsken	View Answer on Stackoverflow

Using jQuery for AJAX with ASP.NET Webforms

asp.net Problem Overview

asp.net Solutions

Solution 1 - asp.net

Solution 2 - asp.net

Solution 3 - asp.net

How do I force ActiveRecord to reload a class?

Try to describe polymorphism as easy as you can

Attributions