Question

explain the three modes of visual basic

Answer 1

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Answer 2

ModeDescriptionDesign timeMost of the work of creating an application is done at design time. You can design forms, draw controls, write code, and use the Properties window to set or view property settings. You cannot use the debugging tools, except for setting breakpoints and creating watch expressions.

From the Run menu, choose Start, or click the Run button to switch to run time.

If your application contains code that executes when the application starts, choose Step Into from the Run menu (or press F8) to place the application in break mode at the first executable statement.

Run timeWhen an application takes control, you interact with the application the same way a user would. You can view code, but you cannot change it.

From the Run menu, choose End, or click the End button to switch back to design time.

Break modeFrom the Run menu, choose Break, click the Break button, or press CTRL+BREAK to switch to break mode.

Execution is suspended while running the application. You can view and edit code (choose Code from the View menu, or press F7), examine or modify data, restart the application, end execution, or continue execution from the same point.

You can set breakpoints and watch expressions at design time, but other debugging tools work only in break mode. See "Using Break Mode" later in this chapter.