Shahed's blog

Shahed's blog Sharing my thoughts and work

Oct 10

Part 1: Getting started with TouchToolkit

In my last post, I introduced TouchToolkit – a toolkit for developing touch-enabled applications. This is the first of a multi-part post where I will explain how TouchToolkit can help simplify the development process of multi-touch applications in Silverlight or WPF 4.0. While we can use the recorded touch interactions (I will explain the recorder module ......

Posted On Sunday, October 24, 2010 11:08 PM Silverlight , Multi-touch , WPF 4.0 , Gesture , Microsoft Surface

Oct 10

Introducing TouchToolkit - simplify the multi-touch application development and testing complexities

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I have been developing TouchToolkit for some time now and just released the October community technical preview (CTP) at the codeplex project website. The key features are: A domain-specific language to define custom gestures (e.g. sample gestures) Supports Windows 7/WPF 4.0 Touch API, Microsoft Surface, Silverlight and TUIO A record/replay module to ......

Posted On Tuesday, October 12, 2010 8:09 AM

Mar 08

Converting Silverlight 1.1 Alpha projects to Silverlight 2 Beta 1

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Just installed the runtime and Silverlight Tools for Visual Studio 2008. You can find the necessary tools here. The beta 1 now has a good set of controls including Data Grid, cool! To run the Silverlight 1.1 Alpha projects in Beta 1, you need to manually modify few things. First, if you try to open the old projects in VS 2008 after installing the latest ......

Posted On Wednesday, March 5, 2008 12:25 PM

Feb 07

Spy on your class and log what it is doing

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In this article, I will explain how you can track class activities like function calls, parameters and return values by simply inheriting one class which I named "Spy". The "Spy" class encapsulates the tracking and logging relates the complexities . This class can be used for debugging function call sequence, state change of objects & parameters ......

Posted On Wednesday, February 7, 2007 4:52 PM

Jan 07

Stop bot, crawler or automated programs from hiting a page

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Recently, I faced a problem where I need to ensure that someone really clicked on a link from a browser. One possible option could be using javascript instead of a direct link. But as many of the referrer sites have already set the link in their pages, I can't ask all of them to fix in their sites. And although this can solve bot or crawler but can't ......

Posted On Tuesday, January 9, 2007 1:44 PM

Jan 07

HTTP 404 error if RSS feed contains <!DOCTYPE rss PUBLIC "-//Netscape Communications//DTD RSS 0.91//EN" "http://my.netscape.com/publish/formats/rss-0.91.dtd">

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Few days back, I was getting HTTP 404 error in my RSS Reader for some feeds. Some of them are very popular feeds and when I checked the feed XML content, I couldn't find any problem. After doing some step by step debugging I found an interesting thing - the path provided for the DTD in <!DCOTYPE... is no longer valid. When the XmlTextReader was trying ......

Posted On Wednesday, January 10, 2007 10:27 PM

Dec 06

Top 20 Programming Lessons ...

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Here is a great article explaining the realities of software development:

http://www.dcs-media.com/desdev/Detail.aspx?ArticleId=578

Posted On Sunday, December 3, 2006 10:39 PM

Oct 06

How to delete a windows service

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Recently, I was trying to delete a windows service. Normally it should not be necessary to manually delete a service. Uninstalling an application should remove its associated service (if any). However, I installed some beta products and a service created by one of the applications was not removed automatically. Its very easy to remove a service from ......

Posted On Friday, October 13, 2006 4:54 PM

Oct 06

"Code Search" - another interesting feature from Google

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Today, I heard about "Code Search" from a pod cast. Its very useful for developers, specially the advance search option.

see www.google.com/codesearch

Posted On Friday, October 6, 2006 5:19 PM

Oct 06

Can not open any files in Office 2007 after installing the latest "Beta 2 Technical Refresh"

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After installing the lastest Office 2007 beta 2 technical refresh, I was getting “Document is unavailable” or virus related error message and can not open any old files. The problem is caused by Norton AntiVirus. To resolve the problem, goto option -> miscellaneus and disable the “How to keep Microsoft Office documents protected” ......

Posted On Tuesday, October 10, 2006 5:46 AM

Aug 06

Can a web based RSS Reader replace the desktop RSS apps?

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Recently, Pageflakes released their new RSS Reader. It provides all the features of a good desktop RSS reader and with AJAX, it gives you the smoothness of regular desktop reader. The good thing of a web application is that you don't have to install it in your PC and you can use it from anywhere. The reader has two view modes: Outlook View & Newspaper ......

Posted On Thursday, August 24, 2006 8:49 AM

Aug 06

FireFox error: [Exception... "'Permission denied to set property XULElement.selectedIndex' ...

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Finally I found a simple solution for the FireFox error: "[Exception... "'Permission denied to set property XULElement.selectedIndex' when calling method: [nsIAutoCompletePopup::sele... nsresult: "0x8057001e (NS_ERROR_XPC_JS_THREW_STRI... This error occurs when focus() is called. I was reported in https://bugzilla.mozilla.or... ......

Posted On Monday, August 14, 2006 2:48 PM

Jul 06

IIS Error "Unexpected error 0x8ffe2740 occurred"

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I was getting the following error when trying to start IIS from my XP machine: “Unexpected error 0x8ffe2740 occurred“ You can get more information in MS KB @ http://support.microsoft.co... Finally, I discovered that its caused by Skype. It listens to port 80 for incoming call. Now, most of the time IIS starts before Skype starts. So IIS works ......

Posted On Thursday, July 20, 2006 7:23 AM

Jul 06

How to optimize javascript

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Today, I have read a useful article which explains the performance issues for javascript execution on Opera. I think, this is also applicable for regular javascript execution on other browsers too. http://userjs.org/help/tuto... ......

Posted On Saturday, July 1, 2006 7:14 AM

Jun 06

Debugging JScript in Visual Studio 2005

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Today, I found an interesting change in Visual Studio 2005 JScript debugging. In Visual Studio 2003, to dubug JScript we need to clear the Disable Script Debugging checkbox from Internet Explorer, Tools->Advance Options. But in Visual Studio 2005, we also have to add the key word "debugger" in JScript code. For more details, http://support.microsoft.co... ......

Posted On Friday, June 23, 2006 1:37 AM