/text/sbasic/shared/03090201.xhp Sun Microsystems, Inc. converted from old format - fpe

Do...Loop statement While; Do loop Until loops Do...Loop Statement [Runtime] Repeats the statements between the Do and the Loop statement while the condition is True or until the condition becomes True.

Syntax Do [{While | Until} condition = True] statement block [Exit Do] statement block Loop or Do statement block [Exit Do] statement block Loop [{While | Until} condition = True] Parameters/Elements Condition: A comparison, numeric or string expression, that evaluates either True or False. Statement block: Statements that you want to repeat while or until the condition is True. The Do...Loop statement executes a loop as long as, or until, a certain condition is True. The condition for exiting the loop must be entered following either the Do or the Loop statement. The following examples are valid combinations: Syntax Do While condition = True ...statement block Loop The statement block between the Do While and the Loop statements is repeated so long as the condition is true. Do Until condition = True ...statement block Loop The statement block between the Do Until and the Loop statements is repeated if the condition so long as the condition is false. Do ...statement block Loop While condition = True The statement block between the Do and the Loop statements repeats so long as the condition is true. Do ...statement block Loop Until condition = True The statement block between the Do and the Loop statements repeats until the condition is true. Use the Exit Do statement to unconditionally end the loop. You can add this statement anywhere in a Do...Loop statement. You can also define an exit condition using the If...Then structure as follows: Do... statements If condition = True Then Exit Do statements Loop... Example Sub ExampleDoLoop Dim sFile As String Dim sPath As String sPath = "c:\" sFile = Dir$( sPath ,22) If sFile <> "" Then Do MsgBox sFile sFile = Dir$ Loop Until sFile = "" End If End Sub