I’ve found (as others have) an interesting problem with ASP.NET AJAX’s Sys.Application.add_load function.  It doesn’t quite work as expected in all browser environments, under certain conditions. We have several ASP.NET based controls that use a lot of JavaScript on page load to initialize, and most of these controls are supposed to support ...

An exciting week with the release of Visual Studio 2010 Beta 1 and F# 1.9.6.16.  This week we have John Backus’s classic FP manifesto,  Luke Hoban speaks on F# in VS2010 beta 1, Django for ASP.NET, and an article on breaking changes in the latest F# release.   John Backus – Can Programming Be Liberated from the von Neumann Style? ...

If you haven’t already made it over to our DotImage 7.0 AJAX Annotations Demo, I  encourage you to take a look.  This demonstrates our new JavaScript annotation editors, which are based on the client side Canvas object.  We’re keeping with our zero-footprint tradition, and supporting most browsers: Internet Explorer 6-8, Firefox ...

Here are some notes from my presentation at SharePoint Saturday this past weekend in Virginia Beach, VA. Included are my slides, code that I demo'd, and hopefully answers to all of the questions that people asked. The Slides Download my slides in PDF form for quick reference. Download my slides as a QuickTime movie to view the presentation ...

This is my third post on the topic of using a simple JavaScript call to keep a server session alive. My first post was on keeping a generic IIS session alive by reloading a hidden GIF, my second was related directly to keeping session state alive for the WebImageViewer, and this post will address the WebThumbnailViewer. Using the ...

Recently, I posted an article describing a simple way to keep a session alive during long periods of inactivity. That works great if your web application doesn't rely on some other information on the server to maintain state. If you use DotImage in your web app, it maintains certain state information in the AtalaCache that needs to be updated ...

It has come to my attention via a recent DZone article that .NET 3.5 and 2.0 SP1 jointly included a new feature which lets you manipulate the way your garbage collector acts programmatically.  This can be done through changing the value of a new property of the System.Runtime.GCSettings class named LatencyMode. In this article I will walk you ...

When developing two of my applications for 31 Apps in 31 Days (here and here), I discovered an issue with using YUI with our WebImageViewer. The script tag that references the YUI js files must be inside the main form element. If it is not, the DOM of the WebImageViewer gets distroyed and multiple painful errors ...

The WebImageViewer is a very powerful web control that we offer to our customers. It does a lot of work for you behind the scenes to make the experience as application-like as possible. It even takes that a step further with the RemoteInvoke method and RemoteInvoked event by providing customers with the ability to make server-side function calls ...

After my last blog post, due to some of the responses, I decided to spend some time with Smalltalk.  As a DotNET developer by trade, I wanted to see what kinds of options were available for use on the CLR.  Unfortunately, out of the five different DotNET Smalltalk flavors that have been created, not a single one is still under ...