repeat until

rishi_smhs

can anyone could expalin me how to use repeat...until statement.plz explain it with example.

rajpatelbca

generally, Repeat statement is used as looping statement in record type of variable.

syntax :

REPEAT

UNTILL Record.next(step)=0.


eg.

Repeat

message(CustRec. Name);
untill CustRec.next=0;


in above example, it will display customer name for all records available in CustRec Record type variable. when record reach at last record after that CustRec.next statement return 0. thus loop is completed.

if you want to read more about it then refer. online help avalible in Navision.

DenSter

Doesn't have to be a record, it is a looping mechanism plain and simple. It repeats a number of statements until a condition is met. One of my former coworkers created an endless loop:

REPEAT
UNTIL HellFreezesOver;

HellFreezesOver is a boolean variable that never gets set

rajpatelbca

oohh same on me..

Tomas

usually it's used as

IF Rec.FIND('-') THEN
REPEAT
..
UNTIL Rec.NEXT <= 0;

DenSter

When looping a set of records it's more like this:

IF Rec.FINDSET THEN BEGIN
  // do what you need to do before the looping starts
  REPEAT 
    // do what needs to be repeated  
  UNTIL Rec.NEXT = 0;
  // clean up after the loop
END;

apertierra

Even simpler: reviewing pages 318-319 from the application designer guide that it's included in the docs folder of the original CD.