如何使用VB.Net自动填充word文档

I would like to create a Microsoft Word template that I can have a VB.net project auto fill specific fields in with database values. My question is how to best go about this with Word. Should I create a Template and add Fields, Bookmarks, or something else? I looked at fields but didn't see a way to create custom field names. Ideally, I would like to create a group of templates that have the same "Field" names that my application can recognize and fill in. Any advice would be great.I would like to create a Microsoft Word templat