AJAX CascadingDropdown Control SQL DataBinding

AJAX CascadingDropdown extender control provides the functionality to load the data in ASP.Net dropdown list controls using AJAX based web service methods. AJAX CascadingDropdown extender works with 2 or more Dropdownlist controls that enable you to load the primary data in first dropdown and further it populates the second Dropdown list control dynamically with related data on selected index change event of first dropdownlist.

All this functionality performs without refreshing the ASP.Net web page. In this sample we have used the Northwind SQL Database to load the category names in first Dropdownlist control that will populate the related products into the second dropdownlist control accroding to the category name selected.

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Google Maps! AJAX-Style Web Development Using ASP.NET

There are three goals in this article. First, to provide a high-level overview of AJAX-style applications. Second goal is to provide a detailed description of asynchronous callback features of ASP.NET 2.0. Finally, to provide an insight into upcoming enhancements of tools and frameworks for building AJAX-style applications.

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ASP.NET AJAX Extender for multicolumn drag and drop

This open source AJAX Web Portal, www.dropthings.com, has an ASP.NET AJAX Extender which provides multi-column drag and drop for widgets. You can see similar drag and drop behavior in commercial AJAX Start Pages like Pageflakes. The Extender allows reordering of content on the same column and drag and drop content between columns. It also supports client-side notification so that you can call a web service and store the position of the content behind the scene without producing (async) postback.

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Dragging and dropping with ASP.NET 2.0 and Atlas

This tutorial is intended to help readers understand how certain aspects of Microsoft's new AJAX Extensions technology works. AJAX Extensions is intended to simplify the development of AJAX-style functionality. As with all technologies, however, to use a tool well, it is important to understand the underlying technology that Atlas abstracts. One of the key ASP.NET AJAX abstractions is the new XML markup syntax developed to make coding with AJAX easier (originally included with the core Atlas files, XML markup is now a part of the CTP called AJAX Futures). With XML markup, developers can modify their code declaratively.

However, there are times when a developer may want to be able to change her code programmatically, and in order to accomplish this, she will need to understand that underneath the markup abstraction, she is actually dealing with good 'ol JavaScript and some custom JavaScript libraries developed by Microsoft. In order to demonstrate the relationship between the Atlas declarative model and the programmatic model, I will go through a series of examples in which the same task will be accomplished both declaratively and programmatically. I will be demonstrating how to use the PreviewDragDrop library file to perform basic drag-drop operations as well as setting up drop zones.

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ASP.NET AJAX SlideShow Extender - Some Common Tips and Tricks

The ASP.NET AJAX SlideShow is cool extender control that comes with the ASP.NET AJAX control toolkit and can be used to create a Slide show by looping images in a round robin fashion.

The images are configured with the SlideShow by using a PageMethod or a webservice. In this article, we will see common tips and tricks while using the SlideShow Extender control.

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