Using the CASE statement to test multiple conditions

When we have more than two conditions to test, it will be beneficial to use a CASE statement for better code readability.

How to do it...

1. Create a new codeunit from Object Designer.

2. Let's add the following global variables:

   Name	Type
   i	Integer

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

   i := 2;
   CASE i OF
     1:
       MESSAGE('Your number is %1.', i);
     2:
       MESSAGE('Your number is %1.', i);
     ELSE
       MESSAGE('Your number is not 1 or 2.');
   END;

4. It's time to save and close the codeunit.

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

   

How it works...

A CASE statement compares the value given, in this case i, to various conditions contained within that statement. Each condition other than the default ELSE condition is followed by a colon. The same logic can be written using the IF statement:

IF i = 1 THEN
  MESSAGE('Your number is %1.', i)
ELSE IF i = 2 THEN
  MESSAGE('Your number...