Flow control structures in Visual Basic for Applications (VBA) are used to control the flow of execution in a VBA program. These structures allow you to make decisions, repeat actions, and execute different actions depending on certain conditions.
The three main flow control structures in VBA are:
- If-Then-Else statements
- For-Next loops
- Do-While loops
An If-Then-Else statement allows you to execute a certain set of instructions if a certain condition is met, and a different set of instructions if the condition is not met. For example, if a cell value is greater than 100, you can have VBA perform one action, and if it is less than 100, it can perform a different action.
A For-Next loop is used to repeat a set of instructions a specified number of times. For example, you can use a For-Next loop to process all the items in a list or all the sheets in a workbook.
A Do-While loop is used to repeat a set of instructions until a specific condition is met. For example, you can use a Do-While loop to keep repeating a process until a certain cell value is reached.
These flow control structures are essential for writing efficient and effective VBA programs. By using them, you can automate many tasks, saving you time and effort. They also make your code easier to read and maintain. If you’re just starting with VBA, understanding flow control structures is a great place to begin.
VBA for Beginners – Chapter 23 : Flow control structures
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