For many years I have created articles that deal with a simple subject relatively quickly, usually in a single page.
After many requests by my readers, and thanks to you all for the suggestions, I have created a set of in-depth articles
that deal with subjects in greater detail and with a lot more code and explanation than I can get onto a single page.
These articles listed here provide free to use source code which can be downloaded in its entirety from links provided on the pages.
A series of three in-depth articles which show how to create a totally custom collection object and a WPF control that databinds to it.
Finally, I'll show you how to customise that system to accept any objects you like and to create custom data templates to spice the control up.
Discover how to create a non graphical presentation layer which enables you to quickly remove one user interface and replace it with another, even on a completely different platform.
A scrollable zoomable canvas control suitable for creating drawing and object manipulation surfaces.
See how the old recursive flood fill algorithm gets new life using a .Net stack collection
A demo application which gives you how to make the event-driven apps more robust!
Add extended properties to your designer controls
Article describing GDI+ alpha-blending in .NET
Read on now to discover the right way to go about debugging
complex controls at run time and design time.
Recently, Microsoft released DirectX9
which has a new set of managed wrappers that enable you to use DirectX through
C# or VB.NET applications. Read on..
If you ever create applications in which the user has to edit items they have
selected, such as graphical elements in a drawing package or objects in a list view,
you'll probably have used the PropertyGrid control as a UI element to speed development
of what would otherwise be a very complex task.
An article on text formatting in .NET
This is the first in a series of occasional articles
that will create some handy shell-extension objects in managed code. Look out
for more in future editions.
The classes and controls provided in Windows Forms are well
suited to most applications. There are however, a few situations when a
non-standard window is required for which Windows Forms does not have an answer.
For example, a custom made tool-tip window is very difficult to create using the
standard Windows Forms repertoire.
The property grid is one of the most useful controls when
creating applications that need to provide a simple to use yet powerful method
of editing any object model.
Windows has a certain look and feel but applications that need to
have a very individual appearance can be created using GDI+ and some window
Windows Forms controls provide a 3D or flat appearance as
standard and the framework provides no other method of changing the appearance
of controls and apparently do not enable users to customize their appearance
other than through handling the Paint event and drawing directly on the control
Graphics systems which maintain information about geometric
shapes or graphical objects that maybe interacted with are known as
retained-mode systems because they retain information about all the
graphical objects in an object model.
When I originally embarked upon this article I imagined that the process of
creating owner-drawn ListView derivatives in Windows Forms would be quite cut
and dried. As the great Rabbie Burns once said "The best laid plans of mice and
men often go awry."
It's possible to create a cool
and distinctive look using this method it has certain disadvantages.
One of the coolest things you can do with GDI+ is mess about
with images. Image transition suites are big business with some packages selling
for almost a thousand dollars.
Creating config files is a useful technique but you have to
decide what to configure by hand. Using reflection, you can create
configurations that can maintain application state very easily.
The property grid used at design time is
a great tool but sometime it'd be great just to grab a little handle on a
control to tweak a property that was wholly visual in nature.
Windows Forms applications regularly use
the LayeredWindow API when translucent forms are used but the control over it is
rudimentary only allowing you to set the opacity of a given window.
So many people seem to struggle over this simple
functionality that I thought it would be a great idea to create a little base
class that shoehorns snap to grid behavior into the mouse handling methods and
One of the most popular types of display is the old
seven segment LED used for many years on video-recorders, watches and just about
every other electronic gizmo that requires a numeric display.
An LED digital clock is one of the classic forms of time
display. Using the LED control created earlier, you can put together a composite
control that displays time very easily.
The LEDBar aggregates a number of LEDControl objects to make a
display that can show any numeric information.
How we can use the simple gradient generating brushes to create
alpha blend masks and make effects like the Windows Drag-Image .
Copyright © Bob Powell 2000-2013.  All rights reserved.