Beginning C# 2005 Databases From Novice to Professional phần 9 ppsx

... to use delegates to bind them to event handlers. Specifically, you saw the following: • That a connection’s StateChange event fires when the state changes from Open to Closed or from Closed to ... it easy for you to use ADO.NET XML features if you choose to. The FOR XML clause has four modes: • RAW • AUTO • EXPLICIT • PATH We’ll use the first two in examples to show how t...

Ngày tải lên: 09/08/2014, 14:20

... connecting to a local SSE instance, but it might happen in trying to connect to a SQL Server instance on another server. • A hardware problem: Again, this is unlikely if you’re trying to connect to a ... method to create a SqlDataReader from a command to display query results. Try It Out: Using the ExecuteReader Method To use the ExecuteReader method, follow these steps: 1....

Ngày tải lên: 09/08/2014, 14:20

... that provides a customiz- able view. CHAPTER 9 ■ INTRODUCING DATA BINDING 2 39 777Xch09final.qxd 11/18/06 2:42 PM Page 2 39 CHAPTER 9 ■ INTRODUCING DATA BINDING 235 Figure 9- 9. Choose Your Database ... WOLZA’s city back to Warszawa and deleting customer zzz. Click Save Data to propagate the changes to the database. Once again, you didn’t write any code to access Customers, n...

Ngày tải lên: 09/08/2014, 14:20

... typically used to pass values between stored procedures, but sometimes they need to be accessed from C#, so let’s write a stored procedure with an output parameter so we can use it in a C# program ... this chapter, we cover: • How to create, modify, and delete stored procedures in SSMSE • How to use stored procedures in C# programs Creating Stored Procedures Stored procedures c...

Ngày tải lên: 09/08/2014, 14:20

... Pedersen, and Jon Reid Beginning C# 2005 Databases From Novice to Professional CYAN MAGENTA YELLOW BLACK PANTONE 123 CV ISBN 1- 590 59- 777-X 9 781 590 597 774 5 399 9 6 892 53 597 77 4 Companion eBook ... 0 .99 8" 528 page count BOOKS FOR PROFESSIONALS BY PROFESSIONALS ® Beginning C# 2005 Databases: From Novice to Professional Dear Reader, Thousands of...

Ngày tải lên: 09/08/2014, 14:20

... 31, 99 99, accurate to 1/300th of a second. Equivalent to the standard SQL timestamp data type. smalldatetime SqlDateTime Date and time data from Jan. 1, 190 0, through June 6, 20 79, accurate to ... GETTING TO KNOW OUR TOOLS 29 Figure 2-17. Restoring the Northwind database Figure 2-18. Restore-failure message box Figure 2- 19. M essage bo x stating the N or thwind database is r...

Ngày tải lên: 09/08/2014, 14:20

... a bucket, ready to be filled with water, but it needs an external pipe to let the water in. In other words, the dataset needs a data adapter to populate it with data and to sup- port access to the data ... chapter, you used data readers to perform a variety of common tasks, from sim- ply looping through single result sets to handling multiple result sets. You learned how to...

Ngày tải lên: 09/08/2014, 14:20

... see the result shown in Figure 9- 2. CHAPTER 9 ■ INTRODUCING DATA BINDING 2 29 Figure 9- 2. Text boxes bound to column values 777Xch09final.qxd 11/18/06 2:41 PM Page 2 29 Performing Complex Data Binding Complex ... using directive to Form1.cs for the System.Data.SqlClient namespace. 6. Insert the code in Listing 9- 1 into the Form1_Load method. CHAPTER 9 ■ INTRODUCING DATA BINDI...

Ngày tải lên: 09/08/2014, 14:20

... an expedient way to cause an ADO.NET exception. You specify the command for a stored procedure call, but you don’t specify the stored procedure to call // Specify that a stored procedure is to be executed cmd.CommandType ... Fail In this example, you’ll try to insert an invalid new customer and try to delete an undeletable one. 1. Run sp_Trans_Test to add customer a and delete cus...

Ngày tải lên: 09/08/2014, 14:20

... server, 5 databases. See also relationships; views introduction to, 172 propagating changes to data source, 196 storing images, 4 09 411 DataBindings property, 238 data-bound controls, 238–2 39 DataColumn ... 67 DataView class, 69 70 binding controls, 2 39 DataTable compared, 188 dynamic views of data, 188 using, 187– 191 , 3 29 date data types , 62 date functions , 2 89 290 , SQL DA...

Ngày tải lên: 09/08/2014, 14:20