Application #42. Associate Help with an Application

One of the most important things that developers can do for their end users is to provide them with a competent and easy-to-use help system for their applications. A number of controls are provided by the .NET Framework for building a help system. Among these are the ToolTip, HelpProvider, and ErrorProvider controls. This sample application, shown in Figure 4-23, will demonstrate how to use these controls to create a more helpful and user-friendly environment in a Windows Forms application.

Figure 4-23. The main screen of Application #42, which demonstrates how to provide users of an application with an effective help system.

The sample application uses a simple interface that has a series ...

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