C# SQL Check box to be ticked when data present

I am slowing learning my way round c# and SQL. I have started a project that will have a list of checkboxes. I want these checkboxes to be ticked if there is any data present within the table. I am not interested in what data, only if there is data in the table.

I have created a win form project that can connect to the database and show the data in a grid view.

Any help would be fantastic!