Make separate function to save a csv file so printing can do that too.
Decide to write a csv file and use excel interop to actually do the printing as a cheap hack.
Clear the columns from dgv on formload, we don't need those.
Refresh the report datagrid view on date change.
Implement the logic to show datagrid view for all children.
Break out the ReportScreen data into a seperate function.
Implement save to CSV.
TODO: for each day, make a new class to display the records in the dgvReport with child displayname, in+in_time, guardian_in, out+out_time, guardian_out, duration.
