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Wednesday, November 04, 2009 11:38 PM

Creating something from nothing, asynchronously [Developer-friendly virtual file implementation for .NET improved!]

Last week I posted the code for VirtualFileDataObject, an easy-to-use implementation of virtual files for .NET and WPF . This code implements the standard IDataObject COM interface for drag-and-drop and clipboard operations and is specifically targeted
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Monday, October 26, 2009 11:34 AM

Creating something from nothing [Developer-friendly virtual file implementation for .NET!]

Have you ever used one of those programs that lets you drag a UI widget, drop it in a folder, and - poof - a file that didn't exist magically appears? Me, too - it's cool! But how does it work? Are they really deferring the work of creating that file
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Friday, October 16, 2009 12:47 AM

Brevity is the soul of wit [A free, easy, custom URL shortening solution for ASP.NET!]

I tend to write pretty long blog post titles. There, I said it. That's the first step, right? Admitting the problem? Except I don't usually think it's a problem... :) Nobody's going to type post URLs, anyway - long ones are really only an issue in one
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Wednesday, September 30, 2009 8:41 PM

Give your computer insomnia [Free tool and source code to temporarily prevent a machine from going to sleep!]

The default power settings for Windows are set up so a computer will go to sleep after 15 to 30 minutes of inactivity (i.e., no mouse or keyboard input). This is great because a computer that's not being used doesn't need to be running at full power.
Posted by Delay | 3 Comments
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Tuesday, September 08, 2009 10:31 PM

When framework designers outsmart themselves [How to: Perform streaming HTTP uploads with .NET]

As part of a personal project, I had a scenario where I expected to be doing large HTTP uploads (ex: PUT ) over a slow network connection. The typical user experience here is to show a progress bar, and that's exactly what I wanted to do. So I wrote some
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Wednesday, August 26, 2009 11:42 PM

Following up on some of the attention [Live sample posted and a *very* small tweak to the Html5Canvas source code!]

I posted the source code for a Silverlight implementation of the HTML 5 <canvas> API yesterday and some readers have been pretty interested in the concept/implementation. Thanks for all your comments and feedback! Earlier today, kind user Fabien
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Monday, August 24, 2009 1:26 PM

Using one platform to build another [HTML 5's canvas tag implemented using Silverlight!]

Background There's been some buzz about the upcoming HTML 5 standard over the past few months. In particular, there are a couple of new features that people are looking forward to. One of them is the new <canvas> element which introduces a 2D drawing
Posted by Delay | 12 Comments
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Thursday, April 16, 2009 4:29 PM

Comma quibbling a la Eric and Jafar [A slightly wacky approach to the problem in C#]

Jafar was teasing me about his F# solution to Eric Lippert's comma quibbling problem , and I decided to retaliate. :) One of the things I didn't like about the five-or-so solutions I'd seen [including Jafar's :P ] was that they were doing a bunch of work
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Wednesday, April 15, 2009 12:21 PM

If one proxy is good, two must be better [Socks5to4a gives your SOCKS 4a proxy a free upgrade!]

I occasionally find myself on a particular network that's separated from the rest of the Internet by a firewall . The administrators of this network are kind enough to provide both HTTP and SOCKS 4a proxy servers , so it's generally quite easy to get
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Tuesday, February 17, 2009 12:12 AM

Ambiguous contract is ambiguous [Minor bug fix for CRC32 and MD5Managed HashAlgorithm implementations]

Kind reader Gregor Zurowski contacted me over the weekend to let me know that he was using my free CRC-32 HashAlgorithm implementation in his project and he'd found that omitting the call to the Initialize method lead to incorrect hash values being returned.
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Sunday, February 01, 2009 12:42 AM

The proverbial "one line fix" [ComputeFileHashes works around a troublesome Silverlight-on-Mac issue]

When I achieved cross-platform parity by adding MD5 support to the Silverlight version of ComputeFileHashes , I thought I was done for a while. But then I got an email from a coworker reporting that the Silverlight version of ComputeFileHashes running
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Wednesday, January 28, 2009 12:25 AM

Thank goodness for reference implementations [Low-overhead .NET MD5 implementation (source code and tests) works great on Silverlight!]

In yesterday's post announcing ComputeFileHashes's new support for MD5 on Silverlight , I promised to share some details about my experience getting an MD5 HashAlgorithm implementation for Silverlight. Recall that an MD5 class is available in the desktop
Posted by Delay | 5 Comments
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Monday, January 26, 2009 11:09 PM

Cross-platform feature parity: achieved [Silverlight version of ComputeFileHashes now includes MD5!]

I was very happy with last week's release of ComputeFileHashes supporting the command-line, WPF, Silverlight, *and* ClickOnce . Only one thing bothered me: the Silverlight version didn't do MD5 due to the lack of support for that type of checksum by Silverlight
Posted by Delay | 4 Comments
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Friday, January 23, 2009 12:21 AM

Math is hard, let's go shopping. [Minor bug fix for free CRC-32 HashAlgorithm implementation for .NET]

While working on code for an upcoming blog post, I found myself dealing with the HashAlgorithm.HashSize property again and realized I'd made a silly mistake a few days ago... :( I'm pretty sure I remember consulting the documentation when implementing
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Wednesday, January 21, 2009 2:13 AM

Gratuitous platform support [ComputeFileHashes works on the command-line, on WPF, on Silverlight, and via ClickOnce!]

Last week, I released the ComputeFileHashes tool for calculating file checksums . (To read more about what checksums are and why they're useful, please refer to that post.) ComputeFileHashes is a fairly simple .NET command-line application for calculating
Posted by Delay | 6 Comments
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