Control - if else and else if

Conditional statements are one of the key control structures in CRMScript. They are used do different tasks based on whether the condition evaluates as true or false.

For example, you are taking sign-ups for an event and start a waiting-list when all available seats are taken.

If statement

The definition has 3 parts:

  • keyword if
  • the condition in parentheses, must be a boolean expression
  • 1 or more statements, blocks must be enclosed in curly brackets
Integer signupCount = 13;

if (signupCount <= 50)
  print("Thank you for signing up! Your participant number is " + signupCount.toString() +".\n");

You can use both conditional and logical operators. You can also compare with the special values true and false.

Bool waitingList = false;

if (waitingList == true)
  print("We are fully booked and have added you to our waiting list.");

If else statement

The definition extends the if statement with 2 more parts:

  • keyword else
  • 1 or more alternative statements, blocks must be enclosed in curly brackets

The alternative statements are run if the preceding condition (the if test) evaluates as false.

Integer signupCount = 72;

if (signupCount <= 50)
  print("Thank you for signing up! ...");
else
  print("We are fully booked ...");

Else if statement

The else if statement lets you test multiple conditions in sequence.

  • keyword else if

  • 1 or more alternative statements, blocks must be enclosed in curly brackets

  • It must be preceded by either an if statement or another else if statement.

  • It can optionally be followed by more else if statements or a closing else statement.

Integer signupCount = 51;
Bool waitingList = false;

if (signupCount <= 50)
  print("Registration OK!\n");
else if (signupCount == 51) {
  waitingList = true;
  print ("Starting waiting list.\n");
}
else
  print("Adding to waiting list.\n");