Introduction to PowerBuilder

Continue Statement

The CONTINUE statement is similar to the EXIT statement. Instead of exiting a loop, however, CONTINUE restarts a loop in a new iteration. The CONTINUE statement has a syntax that is just as simple as the EXIT statement:

CONTINUE

Because it causes a loop to continue, this statement is legal only if it appears within one of loop statements such as DO�LOOP, FOR�NEXT. When the CONTINUE statement is executed, the current iteration of the enclosing loop is terminated and the next iteration begins. This means different things for different types of loops:

• In a DO WHILE/DO UNTIL loop, the specified expression at the beginning of the loop is tested again, and if true, the loop body is executed starting from the top.
• In a DO LOOP WHILE/DO LOOP UNTIL, execution skips to the bottom of the loop, where the loop condition is tested again before restarting the loop at the top.
• In a FOR NEXT loop, the increment is done and the code is executed again from the top if the condition is false.

The following example shows a CONTINUE statement being used to exit the current iteration of a loop when an error occurs:

li_TotalItems = UpperBound(ls_Array) FOR i = li_TotalItems Step 1 IF IsNull(ls_Array[i]) Then CONTINUE li_ValidItems++ NEXT

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