I have been developing applications for mobile devices and AJAX developments for several years, and I thought the idea of ​​merging both was great. After studying many frameworks, I came to the conclusion that the one that best suited my needs was Phonegap, which with the purchase by Adobe after a while I realized that it was not exactly a mistake.

PhoneGap is an HTML5 application platform that allows you to author native applications with web technologies and gain access to APIs and app stores. Leverage web technologies to developers who already know best… HTML and JavaScript

We all remember the mythical Eolas case, for which developers had to change the way of embedding a flash object in web pages, and that many users suffered from having to click for a flash to play. Plus the friendly agreement of xxxxxxxxxx dollars with Microsoft (am I missing any x?).

Well, this law firm (although they call themselves by other terms) apparently claim to own the AJAX patent, USP 7,599,985, which describes an abstract system that works in a similar way to basically any Ajax application.

One of the big problems we have when it comes to web security are the dreaded “cross-site scripting” attacks. Something that browsers like IE (Internet Explorer) solve with the default denial of access to scripts that are hosted on domains other than those of our application. Something that other browsers have not chosen to carry from the beginning.

This leads us to the fact that if we have to embed our development within a third-party iframe, both hosted on different servers, our application will work perfectly in Firefox, Safari, ….. but not in IE, giving us the “Access is denied” error to that script.

Verio is offering free hosting for developers and designers working with Microsoft technology such as Expression, Visual Studio, and Silverlight.  The plan includes:

• .NET Framework 3.0
• SQL Server Express
• ASP.NET 2.0 (Including ASP.NET AJAX 1.0)
• Full Trust
• Shared AppPool
• 100 MB disk space

What needs to be done?  Call 800-932-7483.  No credit card required.  The offer is not available online.  You only need to call this toll-free number, except that since it is an international call I suppose it will have a cost (Skype will always be there). Source: Public Sector Developer Weblogs

Nothing is simpler than creating a basic project in AJAX ASP.NET, once the environment is prepared as we saw in the previous chapter, and given that we have a template for it, we will not complicate our lives to get started:

This will create a structure as follows:

Nothing out of this world, right? a Default, a web.config and the DLL to use the simple AjaxControlToolkit. Now that we have used the template, let’s go a little deeper to see what it has created for us compared to a normal ASP.NET project.

We begin this introductory mini-course in ASP.NET AJAX programming, over the course of a few chapters we will see what to install, how, the use and meaning of the new components and a thousand other things. I hope you like it.

Necessary material:

1. Visual Studio 2005 recommended with SP1
2. ASP.NET 2.0 AJAX Extensions 1.0
3. ASP.NET AJAX Control Toolkit
4. Futures January CTP

We will install Visual Studio routinely, in the same way we will do it with the AJAX Extensions, since they have their own installer.