Adding an Invisible Control to a Form
 | So far, all the controls that you've used sit on a form and have a physical appearance. However, not all controls have a physical appearance. Such controls, referred to as invisible-at-runtime controls, aren't designed for user interactivity, but they're designed to give you, the programmer, functionality beyond the standard features of C#. |
To allow the user to select a picture to display, you need to give her the capability to locate a file on her hard drive. You've probably noticed in the past that whenever you choose to open a file from within any Windows application, the dialog box displayed is almost ...
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