About customdatasource using IMailMergeDataSource interface

For Using IMailMergeDataSource Interface for the arralylist object (instead of Database) is the Document template should start with TableStart? i feel this format is used for retreving from database. what is the word document format for list of objects without database

Hi

Thanks for your inquiry. TableStart and TableEnd merge fields are required only if you execute mail merge with regions. Please see the following link to learn more:
https://docs.aspose.com/words/net/types-of-mail-merge-operations/
If you would like to execute simple mail merge, TableStart and TableEnd merge fields are not required:
https://docs.aspose.com/words/net/types-of-mail-merge-operations/
Format of the template document is not depended from kind of the data source you use for mail merge. You should just insert merge field with the appropriate names in your template.
Best regards.