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Total Hits: 47 | Today: 0
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Author: Ashish Sarda
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ASP.NET 2.0 introduced an interface named ICallbackEventHandler (System.Web.UI.ICallbackEventHandler) to allow asynchronous communication with the server. Unlike Postback, in Callback only user defined information is sent to the server. Instead of using Postback to post the page, ICallbackEventHandler uses the DoCallback event to send user defined data to server, and return a String to client; on the client-side JavaScript can then manipulate the string. In total we have to use four functions fo...
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Total Hits: 10 | Today: 0
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Author: Kris Hadlock
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A standard form includes a set of form tags with custom form fields, such as a name, city, state and so on. In order to successfully submit a form these form elements must have a unique name, so we can retrieve the value with a server-side language when the form is submitted. How we gather this information on the server-side is based on the method in which the form is sent, either a get or a post. Where we send it to is based on the action defined in the opening form tag and if it's left empty t...
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Total Hits: 132 | Today: 0
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Author: Moderator1
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This article explains the concept of associating the Asp.Net Ajax HoverMenu Control with GridView and to manipulate the records in database with the help of HoverMenu. HoverMenu is an ASP.NET AJAX extender that can be attached to any ASP.NET Server Controls, and will associate that control with a popup panel to display additional content. When the user moves the mouse cursor over the main control, the popup gets displayed at the specified position and a CSS style can also be applied to the main ...
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Total Hits: 8 | Today: 0
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Author: Pearson Education
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n the last Designing with Code article, Converting Forms to Ajax, I showed you how to convert your standard web forms to Ajax by including a simple JavaScript object. In this article, I'll show you how to handle the request on the server-side and then the response on the client-side.The example project in this article can be downloaded here and viewed live here. We will learn how to create a login form, reroute the response through Ajax using the same technique learned in the previous article, h...
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Total Hits: 4 | Today: 4
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Author: Dino Esposito
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Unless you've spent the past 12 months disconnected from the Net-perhaps vacationing on a remote tropical island or participating in a reality game show-you should know a few things about AJAX. But I'll do a quick refresher just in case. First, there's the acronym-it stands for Asynchronous JavaScript and XML. Then there is its purpose: a true breakthrough, AJAX makes possible solutions that would be otherwise impossible or just impractical to obtain. And finally, you should understand what AJAX...
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Total Hits: 4 | Today: 0
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Author: Dino Esposito
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There's an unavoidable connection between AJAX and JavaScript that is implied by the AJAX acronym, which stands for Asynchronous JavaScript and XML. JavaScript, though, is a simple programming language whose foundation was laid out quite a few years ago when object-oriented programming was considered overkill for Web pages. At the same time, principles of dynamic languages were considered too academic to be fully implemented in a broadly used programming language....
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Total Hits: 4 | Today: 0
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Author: Guy Smith-Ferrier
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It is a fact that ASP.NET 2.0 has an excellent localization model for Web applications, and the Microsoft® .NET Framework includes considerable globalization support as well. However, this support is limited to server-side code. ASP.NET AJAX applications include a significant amount of client-side code, and this is not covered by the standard ASP.NET localization model. Here I'll explain the localization and globalization models for ASP.NET AJAX applications and show how you can localize JavaScr...
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Total Hits: 4 | Today: 0
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Author: Radu D.
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This article discusses how to build Web applications of the future relying on the current standards. Part 2 of this article presents a C# and Java example about what Standalone Ajax may be. Around January 2007, I was reading an article about the possible technology trends during 2007. One trend was identified as having the Ajax standalone - not needing any more ASP or JSP or PHP or other usual Web technology. Since then, I haven't seen great progress about this "Standalone Ajax", so I decided to...
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Total Hits: 8 | Today: 1
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Author: Maxim Kazitov
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It's a short article about iGoogle gadgets. Gadgets API is easy but documentation is really fuzzy. Gadgets are mini applications that use the IGoogle framework and can live inside other site. In short it's a your page inside iFrame. There are several steps to create your first gadget:
1. Sign up for the Sandbox. Note: behavior of application in Sandbox is different from the one on IGoogle home page (looks like they use different JS libraries).
2. Add developer tools. These tools will prote...
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Total Hits: 7 | Today: 0
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Author: Dino Esposito
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Whether you're a system administrator, a designer, or a developer, your job will be significantly affected by AJAX. Administrators have to ensure that the security bar is still high enough to face new types of possible attacks. Intranet administrators have to guarantee that JavaScript is not disabled on any browsers. Web designers have new challenges to pursue due to features attainable with AJAX that were once impossible or impractical. And developers have a new API and a new overall approach t...
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Total Hits: 2 | Today: 0
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Author: Dave Ward
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Wrapping up my series on some of ASP.NET AJAX’s less utilized client side functionality, this post will take a closer look at some of ASP.NET AJAX’s JavaScript UI helper functions. These methods are great because they abstract away most of the tedious work that comes with supporting cross browser compatibility, leaving us with a nice, consistent API....
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Total Hits: 6 | Today: 0
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Author: themastech.net
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In the previous tutorial we worked with asp.net 2 client callback mechanism. We saw how to use this mechanism to make asynchronous calls to the server side from the client and then return the results back to the client, without any postback. This technique extremely improves the performance of you application. In this tutorial we introduce AJAX patterns. We first discuss what AJAX is and what AJAX is not and how does asp.net client callback fits in with AJAX. Then we will work with four patterns...
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Total Hits: 6 | Today: 0
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Author: mattsrebatespam
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I recently discovered that the bittorrent application µtorrent contained a Web interface. I eventually got it up and running and thought it was pretty neat. I wanted to customize it and make it my own. So, I searched the Web and came across a set of C# classes that hooked into the official µtorrent Web UI. The original posting is located here. In that same posting, there was also a post about an ASP.NET interface using the C# classes. I tested it out, and thought I could build my own and overcom...
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Total Hits: 7 | Today: 0
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Author: Zafar.Iqbal
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This sample demonstrate, how you can use AutoCompleteExtender control from ASP.NET AJAX Control Toolkit and customize its behavior without modifying it. I like Google's suggest feature and was thinking of using it in any of my project. ASP.NET's AJAX Control Toolkit have a similar control (AutoCompleteExtender) which provides a basic items to complete this functionality. I searched about its usage, and found many examples, but I was not satisfied with them. They all were populating only a single...
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Total Hits: 5 | Today: 0
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Author: swalther
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JavaScript (or more accurately, ECMAScript 3.0) does not support properties. JavaScript objects do not have properties in the same sense as C# or VB.NET objects have properties. That’s unfortunate, since there are benefits to C# and VB.NET properties:
· You can use a property as a public interface to a private field. Typically, you want to keep all of an object’s fields private and only expose certain fields through properties.
· You can use a property to perform logic when reading or writ...
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Total Hits: 7 | Today: 0
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Author: Alessandro Gallo
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In the third part of this series we talked about asynchronous calls to the server, which are the essence of Ajax development. ASP.NET AJAX lets the developer write less (and consistent) code by providing a framework that hides the details of the XmlHttpRequest object behind a client API. Another goal of the framework is to further simplify the implementation of common scenarios for asynchronous calls. In the previous article, for example, we saw how to invoke a server method from the client side...
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Total Hits: 9 | Today: 0
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Author: Alessandro Gallo
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In the second part of this series, you saw how to create client Controls and Extenders using the Microsoft Ajax Library and the ASP.NET AJAX server framework. Now, you will learn how to make asynchronous calls to the server in order to process data without reloading a web page. The Web uses a stateless protocol (HTTP) to exchange data. As a consequence, a user interacts with a web page through multiple request-response transactions. Typically, an action performed by the user (such as submitting ...
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Total Hits: 6 | Today: 0
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Author: Alessandro Gallo
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In the first part of this series, we started with an example of a simple web page that displays a Virtual Earth map on screen. The purpose of the code was to highlight some bad habits in writing markup and JavaScript code. We promised ourselves to rewrite the same page in order to take advantage of ASP.NET and the new AJAX framework. This is what we are going to do starting from part two of this series....
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Total Hits: 5 | Today: 0
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Author: Alessandro Gallo
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With ASP.NET AJAX, we can add AJAX functionality to ASP.NET pages. We can rely on a robust JavaScript library to perform tasks such as making asynchronous method calls and refreshing a portion of HTML without reloading the whole page. On the server side, comes a framework that leverages the power of the ASP.NET technology and lets you create Ajax-enabled server controls. In this series, you will take a leap around the main features offered by ASP.NET AJAX. To make things less boring, you will pu...
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Total Hits: 2 | Today: 0
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Author: #ASP.NET
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Just over a month ago, at MIX08, I presented a talk on Real-World Ajax. One of the demos I included was an Ajax templating technique to demonstrate separation of presentation and content from behavior to help manage script complexity, and to help facilitate designer/developer workflow. The demo was based on early thoughts around what we need to do in this area. What is presented here is still quite simplistic in terms of the range of options it provides to developers....
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