Conditionally executes a set of commands based on the value of a logical expression.
Syntax
IF lExpression [THEN]
Commands
[ELSE
Commands]
ENDIF
Arguments
lExpression
Specifies the logical expression that is evaluated. If lExpression evaluates to true (.T.), any commands following IF or THEN and preceding ELSE or ENDIF (whichever occurs first) are executed.
Remarks
You can nest an IF ... ENDIF block within another IF ... ENDIF block.
Comments preceded by && can be placed on the same line after IF, THEN, ELSE, and ENDIF. These comments are ignored during compilation and program execution.