This method takes a collection of values and an array of field names. The two must contain the same number of elements. Each name in the array of field names must be the same as the corresponding merge field name in the template.
Each merge field in a WordWriter template must bind to a data source field/value pair. The number of merge fields in the main template document (the part of the document that is not within a repeat block) may not exceed the number of values in the data source defined by SetDataSource. However, the number of values in the data source may be greater than the number of merge fields in the main template document.