Checking for conditions using an IF statement

Sometimes, we want to execute a section of code on a specific condition; this recipe will help to explain the syntax for the same.

How to do it...

1. Let's create a new codeunit from Object Designer.

2. Add the following global variables:

   Name	Type	SubType
   SalesHeader	Record	Sales header
   RecordsProcessed	Integer

3. Now write the following code in the OnRun trigger of the codeunit:

   IF SalesHeader.FINDSET THEN BEGIN
     REPEAT
       RecordsProcessed += 1;
     UNTIL SalesHeader.NEXT = 0;
     MESSAGE('Processed %1 records.', RecordsProcessed);
   END ELSE
     MESSAGE('No records to process.');

4. Save and close the codeunit to complete the task.

5. On execution of the codeunit, you should see a window similar to the following screenshot:

   

How it works...

In order to execute the code that processes the records, there must be records in the table. That's exactly what the first line of the previous code does. It tells the code that if you find some records, then it should do...