Adds a variable to a document.
Syntax
expression.Add(Name, Value)
expression Required. An expression that returns a Variables object.
Name Required String. The name of the document variable.
Value Optional Variant. The value for the document variable.
Remarks
Document variables are invisible to the user unless a DOCVARIABLE field is inserted with the appropriate variable name. If you try to add a variable with a name that already exists in the Variables collection, an error occurs. To avoid this error, you can enumerate the collection before adding a new variable to it.