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New page: In Visual Basic Comparison and Logic we looked at how to use Visual Basic logical expressions to decide is something is ''True'' or ''False''. Much of the art of programming involves w...
In [[Visual Basic Comparison and Logic]] we looked at how to use Visual Basic logical expressions to decide is something is ''True'' or ''False''. Much of the art of programming involves writing code that makes decisions based on one or more criteria. Such decisions define which code gets executed and which code gets by-passed when the application is running. This is often referred to as ''flow control'' since it controls the flow of execution.
In previous chapters the ''If'' statement has been widely used in examples. In this chapter of Visual Basic Essentials we are going to cover the various forms of ''If'' statements such as ''If .. Then .. Else'', together with other decision making code structures such as ''Select Case'' and ''GoTo''
== Using If ... Then to Make Decisions ==
The ''If ... Then'' construct is probably the most common decision making tool used by Visual Basic programmers. teh basic syntax of this decision structure is as follows:
'''If''' ''expression'' '''Then'''
.. ''Code to be Executed'' ..
'''Endif'''
In previous chapters the ''If'' statement has been widely used in examples. In this chapter of Visual Basic Essentials we are going to cover the various forms of ''If'' statements such as ''If .. Then .. Else'', together with other decision making code structures such as ''Select Case'' and ''GoTo''
== Using If ... Then to Make Decisions ==
The ''If ... Then'' construct is probably the most common decision making tool used by Visual Basic programmers. teh basic syntax of this decision structure is as follows:
'''If''' ''expression'' '''Then'''
.. ''Code to be Executed'' ..
'''Endif'''