//RentedMovie Gridview Bind Data here
        private void RentedMovieGridData()
        {
            DataTable ds = new RentedMOvies().ShowAllRentedMovies();

            RentalDataGridView.DataSource = ds;
            RentalDataGridView.AutoResizeColumns(DataGridViewAutoSizeColumnsMode.AllCells);
        }
 private void RentalDataGridView_CurrentCellDirtyStateChanged(object sender, EventArgs e)
 {
     if (RentalDataGridView.IsCurrentCellDirty)
     {
         RentalDataGridView.CommitEdit(DataGridViewDataErrorContexts.Commit);
     }
 }
 //Get Customers who borrow most movies
 private void button3_Click(object sender, EventArgs e)
 {
     try
     {
         TabControlSystem.SelectedTab = TabControlSystem.TabPages["RentedMovies"];
         DataTable dt = new RentedMOvies().CustBorrowMostMovies();
         RentalDataGridView.DataSource = dt;
         RentalDataGridView.AutoResizeColumns(DataGridViewAutoSizeColumnsMode.AllCells);
     }
     catch (Exception ex)
     {
         MessageBox.Show(ex.Message);
     }
 }