private void RetrieveAssignment()
        {
            string   storageFile     = Path.Combine(Environment.CurrentDirectory, "Assignment.bin");
            FileInfo storageFileInfo = new FileInfo(storageFile);

            if (storageFileInfo.Exists == true)
            {
                Assign            assign    = new Assign();
                AssignmentManager assignMgr = new AssignmentManager();
                assign = assignMgr.RetrieveAsssignment(assign);

                startDatePicker.Text = assign.StartDate;
                endDatePicker.Text   = assign.EndDate;
                txtStartTime.Text    = assign.StartTime;
                txtEndTime.Text      = assign.EndTime;
            }
            else
            {
                MessageBox.Show("No Assignment Created. Please create a new assignment.");
            }
        }