Understanding Document Variables

Visual Basic for Applications allows you to create persistent variables that are associated with a document. Document variables are typically used to maintain some sort of information from one invocation of a macro to the next. For instance, you may want your macro to remember the defaults that it uses when prompting the user. These defaults can be stored within document variables.

To create a document variable within a macro, you use the Add method with the Variables collection. All you need to do is provide the name for the variable and the value you want assigned to the variable. For instance, the following macro line will create a variable called MyVar and assign it a value of 27:

ActiveDocument.Variables.Add Name:="MyVar", Value:=27

At a later time you can access the value associated with the variable by using the variable's name, as follows:

DefaultToUse = ActiveDocument.Variables("MyVar")

Typically, users would never see the contents of a document variable; they are intended primarily for use within macros. You can, however, insert the contents of a document variable directly within a document by using the DOCVARIABLE field, as follows:

{ DOCVARIABLE "MyVar" }

When updated, the field returns the value assigned to the MyVar document variable.