Pini Dayan

Advanced JavaScript Open House

Hi all, As I promised, I am uploading the presentation and source files from the Open day at Sela this week. In these files you can see the source code of the samples we showed in class and the slides which are a good reference to the highlight of this day. Than you all for participating... Download

IE 8 New way to select objects using CSS selectors

When we wish to set some styling rules to a certain group on html controls on a given page - the proper way to do it is to use CSS selectors. CSS selectors come in many ways , You can write simple selector, complex selectors and even group them together. Basically Selectors are the patterns that determine which style rules apply to elements of the document tree. Lets see some sample: Type element selectors: Will find all the div elements and set their font size to 22px div { font-size : 22px ; }...

IE 8 new Feature for working with JSON

When I am lecturing "Microsoft Ajax" and I need to show some Ajax sample that uses JSON I explain to my students that they need to download some js files and place them in the web site in order for them to work with JSON in the client side. When I am referring to working with JSON I usually mean 3 things: 1. Converting a string into a JSON object. 2. Converting an existing object into it's JSON string representation. 3. Converting an XML string into JSON object. So for the first 2 I...

IE 8 Connectivity Enhancements

If you ask any .NET developer what is the number of http requests you can send to a given server at once - he will answer 2. He will be even more sure if he wrote some ajax pages or even worked with Microsoft Ajax. Well as it turns out this answer is not correct. and especially not true in case of IE 8. As it turns out , when we are using IE 8 , rather its an HTTP 1.0 or HTTP 1.1 request we can now use 6 concurrent connections to the same server. Here is a summary table from the msdn site: The limitation...