tailieunhanh - Microsoft ASP .NET Fast & Easy Web Development phần 5

Để hiển thị một tin nhắn cho người dùng khi họ nhập một tên người dùng hoặc mật khẩu không chính xác, kéo một điều khiển Label vào các hình thức từ hộp công cụ. 15. Rõ ràng thuộc tính Text của nhãn và thay đổi giá trị của tài sản ID để lblMessage. | 6. Click on OK. You will be returned to the Data Link Properties dialog box. 7. Click on OK. You will be returned to the Choose Your Data Connection dialog box. 8. Click on Next. The Choose a Query Type dialog box will open. This dialog box provides you with three options to specify the type of the query. You can specify whether you want to use SQL statements create a new stored procedure or use an existing stored procedure to access the database. By default the Use SQL Statements option will be selected. 9. Click on Next. The Generate the SQL Statements dialog box will open. This dialog box enables you to specify the Select statement that will be used to automatically create the Insert Update and Delete statements. 10a. Type the Select statement in the box. OR 10b. Click on Query Builder if you want to design the query. The Add Table dialog box will open. ft _ __J 11. Click on the name of the table you want to use in your query and then click on Add. The columns of the selected table will appear in the Query Builder. 12. After you add all of the tables that you want to use in your query click on Close. The Add Table dialog box will close. 13. Click on the check box for each column that you want in your query. The selected queries will be designed in the Query Builder. 14. Click on OK. The Query Builder will close and the query will appear in the Generate the SQL Statements dialog box of the wizard. 15. Click on Next. The View Wizard Results dialog box will open. This dialog box lists the tasks performed by the wizard. 16. Click on Finish. The wizard will be completed and the configuration settings will be applied to the data adapter. An instance of the connection and data adapter objects will appear on the fo rm. The preceding steps used the Data Adapter Configuration wizard to configure a data adapter for the application. You can also configure a data adapter for your application by dragging a table from the Server Explorer to the form. See .