public void fillDataGridViewLocationAttendance(DataGridView dataGridView, string locationName, int month, int year) { locationControl = new LocationControl(); attendance = new Attendance(); attendanceDB = new AttendanceDB(); int locationID = locationControl.getID(locationName); attendance.setLocationID(locationID); attendance.setMonth(month); attendance.setYear(year); SqlDataAdapter adapter = attendanceDB.fillDataGridViewLocationAttendance(attendance); DataTable dataTable = new DataTable(); adapter.Fill(dataTable); dataGridView.DataSource = dataTable; }