và một hàng dữ liệu về hình thức và ba biểu tượng xuất hiện trong khay ở dưới cùng của cửa sổ thiết kế. Thay đổi kích cỡ hình thức và lưới điện cho phù hợp với sở thích của bạn cho bao nhiêu hàng và cột để hiển thị. | CHAPTER 9 INTRODUCING DATA BINDING 235 Figure 9-9. Choose Your Database Objects window Figure 9-10. Choose a database table 236 CHAPTER 9 INTRODUCING DATA BINDING 11. Click Finish and you ll go back to the window in Figure 9-3. You don t need to do anything else with it now so click anywhere outside it to dismiss it. You ll see the screen shown in Figure 9-11. Notice that the data grid now shows a row of column headings and a row for data on the form and that three icons appear in the tray at the bottom of the Design window. Resize the form and grid to suit your preference for how many rows and columns to display. Design Design start Page S X 3 northwndDataSet tcustomersBindmgSource customersTableAdapter Figure 9-11. Data grid view and three tray icons 12. Make this the startup project and run it with Ctrl F5. You should see a result similar to the one shown in Figure 9-12. CHAPTER 9 INTRODUCING DATA BINDING 237 Figure 9-12. Displaying customers bound to a data grid view How It Works It works like magic. You went through lots of screens but wrote no code at all. Pretty cool The magic happens because of the objects created for you represented by the icons in the tray. Most of the details are well beyond the scope of this book but if you look at you ll find four lines that define private variables used for the data grid view dataset binding source and table adapter private dataGridViewl private northwndDataSet northwndDataSet private customersBindingSource private customersTableAdapter If you re really curious look at the 1 476 lines of code that VCSE generated to implement the .
