Page History

...

The main document may include multiples sets of merge fields, where each set of fields binds to a different data source. A SetDataSource call is required for each set of main document merge fields. Only one row of data can be imported to each set of main document merge fields. When you include more than one set of merge fields in the main document, use any of the following SetDataSource methods to set data sources:

SetDataSource(object[] data, string[] fieldNames, string name)
SetDataSource(DataSet ds, string name)
SetDataSource(DataTable dt, string name)
SetDataSource(IDataReader dr, string name)

SetDataSource(data() As Object, fieldNames() As String, name As String)
SetDataSource(ds As DataSet, name As String)
SetDataSource(dt As DataTable, name As String)
SetDataSource(dt As IDataReader, name As String)

...