COMException (0x80072020)
This post is programming related and has nothing to do with electronics. I have not written anything programming related topics lately, but this one is worth sharing as it is related to an rather obscure error.
Tag: C Sharp (C#)
Hex/Bin/Dec Converter And Calculator
When working with micro-controller projects, it is often necessary to perform calculations in binary and hexadecimal forms. While almost all calculator tools (such as calc under Windows and gcalctool in Linux) can handle such tasks, they are designed for general…
POV And POV Image Encoder
One of my recent projects was to build a POV display device. There are already many microcontroller based POV devices out there, but most of those I have seen use around eight LEDs and have fixed font types. So I…
A Simple Thread Barrier Implementation
Sometimes a group of concurrently running threads may need to rendezvous at a certain point in time before they can further proceed. This situation commonly arises in areas like event simulation, where the events are synchronized via a clock event…
Monodevelop on Ubuntu 9.04
I am running Ubuntu 9.04 64bit. One thing I noticed is that the integrated debugger is behaving quite flaky for the included Monodevelop 2.0 package. After some research, it turned out that a lot of people are having similar issues.
Poor Man’s Parallel Task Dispatcher
Even though multi-core processors are almost ubiquitous nowadays, applications are slow to catch up. Of course, one could always re-write the applications in order to take the full advantages in a multi-core environment. But it is not an easy undertaking.
Two Level Tree and Its Applications — II
In my previous post, I discussed how to merge and split a two level tree. Before moving on to discuss its applications, let us take a look at the output of the sample program I gave before.
Two Level Tree and Its Applications — I
A two level tree is a simple tree data structure. Unlike in a typical tree where the tree depths could be arbitrary, a two level tree has only two levels as its name suggests. Two level tree is also equivalent…
An Obscure System.Web.Mail Error Message
Today I encountered a rather obscure error while maintaining some old ASP.Net code (Framework 1.1).
Producer-Consumer: A Duplicate File Finder
Processes tend to benefit greatly from multi-core processors if they are CPU bound (i.e. computational intensive tasks). The actual speedup depends on the portion of the code that must remain sequential.
Extending the GridView — Part IV
In the previous three posts(I, II, III), I showed you how to inherit from GridView control to create an extended control that can bind to a generic list of objects. In this final post of the series, I will show…
Extending the GridView — Part III
In Part II, I showed you how to extend the GridView control so that we can bind a generic list to it. Because GridViewEx inherits from GridView, it has all the functionalities GridView has (i.e. paging). Sometimes, it is desirable…
Extending the GridView — Part II
In Part I, I talked about why we needed to extend the GridView and some of the benefit in doing that. In this post, I will discuss how to extend the standard GridView control to take advantage of binding to…
Extending the GridView — Part I
Most business applications require presenting result sets to the end users in the form of some kind of grid views.
A Line of Code Could Bring Visual Studio .Net Down to Its Knees
It seems at least to me that as more bells and whistles were added to each new release of Microsoft’s products, the qualities of which have been deteriorating.