By Heather Wright
Something that was once awesome approximately this publication is the author's definition of polymorphism. He says that Polymorphism is the facility to create many equipment in a category with a similar identify yet with various signatures. In my my wisdom, that idea is named process overloading. Polymorphism is the facility to name an identical process on items from varied periods that inherit from an analogous superclass or interface.
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Additional resources for Beginning Visual C# 2005 Express Edition: From Novice to Professional (Beginning: from Novice to Professional)
If you don’t want to save the project, don’t worry about giving it a name, just accept the standard one. What you’ll do in this program is hold some information about my two dogs and be able to display that information in the console window. Without classes and objects, this program would have taken one of two forms. You’d either create a whole bunch of variables (don’t worry, I’ll get into what variables are shortly), or create a couple of arrays (lists of variables, which I’ll be covering later as well).
If you look at the top of the code window, you’ll see some grayed-out text that says Using directives with a + sign next to it. Click the + sign (see Figure 1-28). Figure 1-28. Clicking a + sign next to text in the code editor expands the region. qxd 4/10/06 12:50 PM Page 23 CHAPTER 1 ■ WELCOME TO C# EXPRESS What you’ve just done is expanded a region. If you look closely at the code, you’ll see the word #region beside the + sign, and further down a line that reads #endregion. The #region and #endregion keywords allow you to mark up a block of text as a region that can be collapsed and redisplayed, as you just saw.
If you were to resize the form right now (please don’t), you’d find that the form would grow or shrink in size but the controls would remain exactly where they currently are. What you really want to happen is that when the user resizes the form, the controls move to match the new form size. This is achieved by setting up the Anchor property of a control. Anchoring allows you to lock an edge of a control in place, relative to its parent. So if you dropped a Label control on a form, and resized it with the mouse so that its right edge was just 5 pixels away from the right edge of the form, anchoring that edge would make sure that the label grows and shrinks as the form does, always keeping its right edge 5 pixels away from the right edge of the form.