Tip – Serving .json File on Windows (IIS, IIS Express)

imageSo what is wrong with the simple getJSON call? Why doesn’t it work?

<script type="text/javascript" src="http://code.jquery.com/jquery-latest.js"></script>
<script type="text/javascript">
  $(document).ready(function(){
     $.getJSON('data.json',function(result){
      alert("success");
    });
  });

It works fine in Firefox 11 but not in IE and Chrome. By default, IIS6 does not serve .json (no wildcard MIME type). So you will see a 404 not found thrown.

By default, IIS in Windows Server 2003 and beyond does not serve files that aren’t of a MIME type that it knows about (instead returning 404 errors).

So, to serve up JSON files you need to add a MIME type to IIS to allow it to serve that type of file. You can set it at the site level or at the server level.

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Snippet – Using FontAwesome, Bootstrap, MVC for Checkbox, Radio Controls

imageSo how can you use the check-boxes from Font Awesome, and get the box to check/uncheck. When a user clicks, how do I show the right icon?

When checked: icon-check ; unchecked: icon-check-empty.

The basic idea is to select spans:before that is next to input you want..

image 

image

If you are using less/sass, you could just include the .icon-glass:before declarations, to make it all easier to maintain & modify. Continue reading “Snippet – Using FontAwesome, Bootstrap, MVC for Checkbox, Radio Controls”

Snippets – Filtering JSON Using jQuery Grep, Filter, Map

6327_image_58FAEDFAWhen you have a JSON array, you may want to get one or more items from the array and display. jQuery offers two functions that can help: grep and filter.

  • $.grep(). Finds the elements of an array which satisfy a filter function. The original array is not affected.
  • $filter(). Reduce the set of matched elements to those that match the selector or pass the function’s test.
  • $.map(). applies a function to each item in the array, thus returning a modified array

In other words, $.grep() removes items from an array as necessary so that all remaining items pass a provided test; .filter() constructs a new jQuery object from a subset of the matching elements.

Also, filter is intended to be used with html elements, and that is why it is a chainable function that returns a jQuery object and it accepts filters like “:even”, “:odd” or “:visible” etc. You can’t do that with the grep function, which is intended to be a utility function for arrays.

Continue reading “Snippets – Filtering JSON Using jQuery Grep, Filter, Map”

Snippet – C#, JavaScript, jQuery, Underscore ForEach Loops

10063_580983808600819_401360548_nThe foreach statement repeats a group of embedded statements for each element in an array or an object collection. The foreach statement is used to iterate through the collection to get the information that you want.

It is not be used to add or remove items from the source collection to avoid unpredictable side effects. (If you need to add or remove items from the source collection, use a for loop.)

Continue reading “Snippet – C#, JavaScript, jQuery, Underscore ForEach Loops”

Snippet – Setting MIME Types (Font Awesome or Custom Fonts or Json File Extensions Doesn’t Work When Deployed on Windows)

imageWhen using custom fonts on Windows Azure, users have reported issues. For example, Font Awesome icons would not display. Or even if the fonts do display, it might not display correctly on some devices, such as Windows Phones.

In other cases, you may have a file type that does not map to the right MIME type.

In fact, I exposed most of the JSON files with the .txt extension just to avoid the issue of IIS not serving up .JSON files as expected.

It turns out — the issue is that IIS 7 – 8.1 serves up the wrong MIME type for web font files. So you need to be sure the right MIME types are being served up for your font files, as shown here: Proper MIME type for fonts.

When deploying to an IIS servers you need to add MIME support.

Continue reading “Snippet – Setting MIME Types (Font Awesome or Custom Fonts or Json File Extensions Doesn’t Work When Deployed on Windows)”