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All Tags » ASP.NET AJAX (RSS)
Taking Picture Snapshots with ASP.NET and HTML5
This is another post on HTML5 and ASP.NET integration . HTML5 brought along with it a number of great JavaScript APIs; one of them is getUserMedia , which is W3C standard and you can get a good description of it in MDN . In a nutshell, it allows access...
ASP.NET Callback Panel
Continuing with my quest for reusable, no dependencies, Web Forms AJAX controls , this time I wanted a replacement for the venerable UpdatePanel control. Specifically, I wanted to address the following issues: Allow the partial update of a region on my...
Speech Synthesis with ASP.NET and HTML5
The .NET framework includes the SpeechSynthesizer class which can be used to access the Windows speech synthesis engine. The problem with web applications is, of course, this class runs on the server. Because I wanted a mechanism to have speech synthesis...
ASP.NET Upload Panel
Introduction I have been playing recently with HTML5, and one thing that I got to understand really well was the new upload mechanisms available. Specifically, I wanted to understand how Sky OneDrive , Google Drive , Dropbox , etc, all support dropping...
Client Callbacks In Action Part 1: Auto Completing Text Boxes
I have talked about client callbacks in the past , and even provided a general-purpose control for invoking code on the server-side. This time, I will provide two more examples: A text box control that displays a dynamic pick list generated from a server...
My All Time Favorite Posts
Since this blog started, back in 2008, I wrote a lot of posts. I’d say some are still up to date. I picked a few of them, those I’m more proud of, in no particular order. ASP.NET Web Forms: Using the ASP.NET Health Monitoring Provider to Secure Your Application...
Wrapping ASP.NET Client Callbacks
Client Callbacks are probably the less known (and I dare say, less loved) of all the AJAX options in ASP.NET, which also include the UpdatePanel , Page Methods and Web Services . The reason for that, I believe, is it’s relative complexity: Get a reference...
ASP.NET MVC Validation Complete
OK, so let’s talk about validation. Most people are probably familiar with the out of the box validation attributes that MVC knows about, from the System.ComponentModel.DataAnnotations namespace, such as EnumDataTypeAttribute , RequiredAttribute , StringLengthAttribute...
Remove View State from UpdatePanel Call
You may not be aware that view state (and control state) is included on each UpdatePanel call, even if the controls placed inside it have it disabled. As view state can get quite large, it may be useful to disable posting it during UpdatePanel calls,...
Detecting Authentication Expiration in ASP.NET
I recently had to solve a problem: when issuing an asynchronous call by using an UpdatePanel , if the user is no longer authenticated – due possibly to long inactivity – this situation is silently ignored. What happens is, when an unauthenticated user...
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