July 2003
Intermediate to advanced
736 pages
16h 35m
English
Content preview from Visual Basic® .NET Power CodingBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Implementing a Custom Component
Creating custom components in Visual Basic 6 was too complicated. The single greatest deterrent to building great components in VB6 was that VB6 did not support inheritance. As a result you could not inherit from a VB6 TextBox control and extend it to do something new. Fortunately, Visual Basic .NET does support true inheritance, and this is all you need to create great components.
The distinction generally made between a component and a control—even though the terms are often used interchangeably—is that controls have a visual aspect at runtime and components do not. Examples of components include the Timer, FileSystemWatcher, and EventLog components. Examples of controls include the TextBox, Label, and Button ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.