When you develop a large scale of project, there are many dataforms in the DataForm.NET List. It will become difficult to browse or find one if they are not categorized. Define several categories and specify a category to a DataForm when you add or update a DataForm.

1. Open DataForm.NET Manager.
2. Open "Edit/Category" from menu.
3. To add a new category, enter category name and click "Add" button to a new category.
   To modify an existing category, click an existing category, modify its name and click "Update" button.
   To delete an existing category, click an existing category and click "Delete" button. All dataforms that belong to this category will be moved to default category(first category).

Note: There is a default category which has no name. It can't be deleted but can be updated.