VBScript in a Nutshell, 2nd Edition

Name

For Each . . . Next Statement

Syntax

For Each element In group
[statements]
[Exit For]
[statements]
Next

element

Use: Required

Data Type: Variant

A variable to which the current element from the group is assigned.

group

Use: Required

A collection or an array.

statements

Use: Optional

A line or lines of program code to execute within the loop.

Description

Loops through the items of a collection or the elements of an array.

Rules at a Glance

• The For...Each code block is executed only if group contains at least one element.

• All statements are executed for each element in group in turn until either there are no more elements in group, or the loop is exited prematurely using the Exit For statement. Program execution then continues with the line of code following Next.

• For Each...Next loops can be nested, but each element must be unique. For example:

  For Each myObj In anObject
     For Each subObject In myObject
        sName(ctr) = subObject.NameProperty
        ctr = ctr + 1
     Next
  Next

  uses a nested For Each...Next loop, but two different variables, myObj and subObject, represent element.

• Any number of Exit For statements can be placed with the For Each...Next loop to allow for conditional exit of the loop prematurely. On exiting the loop, execution of the program continues with the line immediately following the Next statement. For example, the following loop terminates once the program finds a name in the myObj collection that has fewer than 10 characters:

  For Each subObject In myObj SName = subObject.NameProperty If Len(Sname) ...