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trong khi các chuyên gia dày dạn hơn sử dụng nó như một hướng dẫn tiết kiệm thời gian bất cứ khi nào họ cần "làm thế nào để" chi tiết mất mãi mãi để tìm thấy trực tuyến.Dưới đây là một tóm tắt nhanh chóng trên những gì mà các nhà phát triển đã luôn luôn thích nhất về cuốn sách này: | 566 Section 5 Advanced database programming skills How to choose a layout Figure 16-5 shows how to complete the next two steps of the Report Wizard. In the Choose the Layout dialog box you can check the first checkbox to display the subtotals and grand totals for the report and you can click on the option buttons to determine how these totals are displayed. The only difference between the two Blocked options is the location of the subtotals. In contrast the Stepped option displays all of the subtotals in a single column but puts a tab between each of them to create an offset effect. By default the second checkbox in this dialog box is checked. This means that the data in the child groups will be collapsed when the report is displayed. Then the user can click on the plus sign in front of a group to expand its collapsed data. This lets the users drill down to the data that they want. If you don t want that though you need to uncheck this box. In the Preview pane for this dialog box you can see that the sum of the invoice totals appears in four places. That s because I checked the first checkbox. The first sum is for each invoice although an individual invoice total doesn t need to be summed. The second is for each vendor. The thừd is for each state. And the fourth is the grand total for all invoices for all vendors. How to choose a style In the Choose a Style dialog box you can select one of the six styles for a report. By default the style is Ocean. Except for the Generic style each style applies colors to the rows in the report. After you complete the wizard you can use the Report Designer to change the background colors for specific cells rows and columns. When you click the Finish button in this dialog box the report is displayed in the designer. Download from Wow eBook www.wowebook.com Chapter 16 How to use the reporting features of Visual Studio 567 Layout and style options in the Report Wizard Report Wizard Choose the layout Options o Blocked subtotal below .
