Tài liệu Using Delegates pptx
Tài liệu Using Delegates pptx
...
Using Delegates
In the following exercise, you will create a delegate to encapsulate a method that ...
1. Start Microsoft Visual Studio 2005.
2. Open the Delegates project, located in the \Microsoft Press\Visual CSharp Step by
Step\Chapter 16 \Delegates folder in your My Documents folder.
3. On ... called ticking, to arrange for a pulse to be
sent every second. This class...
Tài liệu Using Cursors pptx
... in a cursor using the @@CURSOR_ROWS
function. You'll learn more about functions later in the " ;Using Functions
" section.
Step 5: Close the Cursor
Close your cursor using the CLOSE ... reference to your cursor using the DEALLOCATE
statement. This frees the system resources used by your cursor. The following example
removes the reference to ProductCursor using the...
Tài liệu Using Functions phần 1 pptx
... functions. You get the total number of
rows using the COUNT() function. For example, the following statement gets the total
number of rows in the Products table using the COUNT() function:
SELECT COUNT(*) ... 4.3
shows the results of this SELECT statement.
Figure 4.3: Using the SUM() function to compute the total of the UnitPrice column
Using Mathematical Functions
The mathema...
Tài liệu Using ADO.NET Design-Time Features in Classes Without a GUI pptx
... variables, and constants
using System;
using System.Data;
using System.Data.SqlClient;
// . . .
public DataTable MyDataTable
{
get
{
// Fill a table using the DataAdapter control. ...
Example 7-34. File: UsingDesignTimeFeauresWithComponentsForm.cs
// Namespaces, variables, and constants
using System;
using System.Data;
// . . .
private void UsingDesignTimeFeau...
Tài liệu Using the Connection Object pptx
... Using the Connection Object
As with ADO.NET, you will be using the Connection object to set up a connection to the
database ... provides two other examples of using the connection object, also found in
basConnectionExamples.vb. The first is code to open a connection to a Jet database by
using a workgroup file, username, ... & cnnNet.ConnectionString
cnnNet.Close()
End Su...
Tài liệu Using Actionscript to Draw Lines Dynamically pptx
...
< Day Day Up >
Using Actionscript to Draw Lines Dynamically
Using ActionScript, you can dynamically draw lines in a movie as it plays—a ... drawing position at
any time using moveTo(). When a line is drawn, the drawing position is updated to the
endpoint of the drawn line.
The following is the syntax for using moveTo():
path.moveTo(x, ... line
style, and clear a movie...
Tài liệu Using Compound Assignment Operators pptx
...
Using Compound Assignment Operators
You've already seen how to use arithmetic operators to ... variable is so common that Microsoft Visual C# lets you
perform this task in shorthand manner by using the compound assignment operator, +=.
To add 42 to answer, an experienced programmer would
Tài liệu Using Window Systems pptx
... program exits. If yours doesn’t do this,
though, you’ll need to finish by using the terminal window’s own
“close” command.)
Using the program’s own “quit” command gives the program time to
clean ... want, just do it again.
Working with Windows 31
7 January 2002 13:11
32 Chapter 2: Using Window Systems
If you’re using a terminal window (such as xter m), and a
pr ogram is already running...
Tài liệu Using Transactions with a DataSet (SQL) pptx
... objects stored in a DataAdapter.
Using the DataAdapter Command Object's Transaction Property
A DataAdapter stores four Command objects that you access using the SelectCommand,
InsertCommand, ...
Using Transactions with a DataSet (SQL)
In Chapter 3
, "Introduction to Structured Query Language," ... this Transaction object. When you then modify your
DataSet and push the...
Từ khóa: