Run Time Design Time and Break Mode

The VBA IDE can be in any one of three modes: run mode, break mode, or design mode. When the IDE is in design mode, we can write code or design a form.

Run mode occurs when a procedure is running. To run (or execute) a procedure, just place the cursor anywhere within the procedure code and hit the F5 key (or select Run from the Run menu). If a running procedure seems to be hanging, we can usually stop the procedure by hitting Ctrl-Break (hold down the Control key and hit the Break key).

Break mode is entered when a running procedure stops because of either an error in the code or a deliberate act on our part (described a bit later). In particular, if an error occurs, Excel will stop execution and display an error dialog box, an example of which is shown in Figure 4-2.

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