Record count based on a condition vb.net winform

Hello experts. I have a winform that I fumbled my way through that connects to a sql database via a class I created (see attached if helpful). On my form I have a datagridview. The grid contains several columns. What I want to do is either have text boxes or labels that tell me how many records in my priority column contain Urgent, High, Medium, Low.

Example: Low               5
                 Medium        11

My issue is I have no idea how to connect a text box or label to the db with the proper syntax on how to count those records.
code.docx