Beginning C# 2008 Databases From Novice to Professional phần 5 potx

... something you almost never want (or need) to do. You need to be able to store whatever values are appropriate at any given time. There are two approaches to doing this. Both are reasonable, but ... Ctrl+F5. You should see the output in Figure 11 -5, the first and last names of all nine employees. Figure 11 -5. Using a data reader How It Works In this example, you use the ExecuteReader...

Ngày tải lên: 08/08/2014, 18:21

... Huddleston, author of Beginning VB 20 05 Databases: From Novice to Professional Beginning C# 20 05 Databases: From Novice to Professional Beginning Figure 1 -5. Creating the Northwind database This ... 0.9682" 51 2 page count Books for professionals By professionals ® Beginning C# 2008 Databases: From Novice to Professional Dear Reader, This b...

Ngày tải lên: 08/08/2014, 18:21

... property of any control is set to None. For example, a control docked to the top edge of a form will always be connected to the top edge of the form, and it will automatically resize in the left ... when developers were required to use Internet Information Services CHAPTER 15 ■ BUILDING ASP.NET APPLICATIONS 351 9004ch15final.qxd 12/13/07 4:00 PM Page 351 Figure 15- 3 shows the New...

Ngày tải lên: 08/08/2014, 18:21

... 4-7. select CustomerID, TerritoryID , Row_Number() over (Partition by TerritoryID order by CustomerID) as [RowCount] from Sales.Customer Where TerritoryID in (1,2) AND CustomerID Between 1 and 75 Notice ... beginning, middle, or end. In this case, book titles such as C# 2008: An Introduction,” “Accelerated C# 2008, ” and Beginning C# 2008 Databases will be listed. • _ (undersco...

Ngày tải lên: 08/08/2014, 18:21

... Predicates Quite often you’ll need to use more than one predicate to filter your data. You can use the logical operators shown in Table 5- 6. Table 5- 6. SQL Logical Operators Operator Description Example AND ... don’t have to be. If you work with another version of SQL, please refer to its documentation for specifics. In addition to these operators, the LIKE operator (see Table...

Ngày tải lên: 08/08/2014, 18:21

... you want to add a click event for the button. Double-click button1, and it will open the code editor with the button1_click event. Insert the code in Listing 8-2 into the code editor. Listing ... T-SQL H ere, you’ll code a transaction to both add a customer to and delete one from the N orthwind Customers table. The Customers table has eleven columns; two columns, C ustomerID and Com...

Ngày tải lên: 08/08/2014, 18:21

... @" select productname, unitprice, unitsinstock, discontinued from products "; The reason we have you choose these columns is to deal with different kinds of data types and show how to use relevant typed accessors to obtain ... "); } CHAPTER 12 ■ USING DATA READERS 257 9004ch12final.qxd 12/13/07 4:07 PM Page 257 Let’s look at an example. Imagine you’re trying to conn...

Ngày tải lên: 08/08/2014, 18:21

... DATA ADAPTERS 2 95 9004ch13final.qxd 12/13/07 4: 05 PM Page 2 95 hindering adoption by your target audience. Don’t ask users to adapt to new visual ele- ments as they navigate from form to form. Consistency ... ascending order by name from “a” to “z.” You can switch to the Alphabetical view by clicking the icon located at the second posi- tion from the left of the toolbar s...

Ngày tải lên: 08/08/2014, 18:21

... which is set to False by default. 6. Drag a Label control from the Toolbox to below the TextBox and set its AutoSize property to False. Also, set the Label’s Font Size property to 12 and TextAlign property ... named DisplayImages to your solution. Rename Form1.cs to DisplayImages.cs. 2. Add a text box, a button, and a picture box to the form and set the button’s Text property...

Ngày tải lên: 08/08/2014, 18:21

... of, 433–4 35 LINQ to Objects, 437–439 LINQ to SQL, 439–4 45 LINQ to XML, 4 45 447 overview, 431–433 project structure, 4 35 437 LINQ to Objects , 437–439 LINQ to SQL, 439–4 45 LINQ to XML, 4 45 447 List< ... method, 250 GetName( ) method, 255 , 256 GetName property, 251 GetOrdinal method, 255 GetOrdinal property, 251 GetRow( ) method, 418 GetSchemaTable method, 256 , 27...

Ngày tải lên: 08/08/2014, 18:21