sams teach yourself the csharp language in 21 days pdf

... under the Windows Scripting Host Today you’ll learn about JScript, the other scripting language supported by WSH The JScript scripting language is based on the popular Java programming language ... single-line and multiline A single-line comment begins with a pair of forward slashes (//) and indicates that the remainder of the line is a comment Following is an example of a single-line comment: ... similar in terms of their syntax, they were originally developed independently of each other They also continue to Explorer Thus, JScript was born At its core, JScript is still the same scripting language

Ngày tải lên: 13/08/2014, 08:21

... significance of breakpoints, imagine that you are interested in seeing what happens in a script at a particular point in the code One... in the window in Figure 8.11 being displayed.à à ... the Command Window and see the results For example, entering the following line of code in the Command Window creates and initializes... these single-step approaches is how they handle function ... breakpoint.à à Ãà à à à Executing One Line at a Timeà à Single-stepping is the process of executing a script a line at a time, in single steps, and... than just trying to take medicine for

Ngày tải lên: 13/08/2014, 08:21

... First, you’re going to take a look at some of the language constructs that are used in batch files and the equivalent language constructs in WSH It’s important to keep in mind that these language constructs ... and others for user administration.     In this context, user administration means to administer the user's computer, including the Windows desktop, program settings, files, folders, and ... specified using the Universal Naming Convention (UNC) in the form \\server\share For example, you may have a batch file that bitmaps to a directory using something like the following syntax: The problem

Ngày tải lên: 13/08/2014, 08:21

... represent the fields in the table To add the columns, I need to create individual Column objects, change the settings for each Column, and then add the Column to the Table object using the Table.InsertColumn() ... call the Table.BeginAlter() method Table.BeginAlter() prepares the table for a batch of changes Then, you insert the new column into the table using the Table.InsertColumn() method, and finally, ... segments of the type information On the right side of the screen, you see the full listing for the type library. Trang 13To get the constants for the SQL Server device types, I move down in the categorized

Ngày tải lên: 13/08/2014, 08:21

... You obtain references to individual Window objects by à indexing the Windows collection or by using the ActiveWindow property This code displays the caption of the first window in the Windows ... refer to the source code in Listing 13.4 The script takes the following arguments, in order: computer—this is the name of the computer that contains the Web site; à instance—this is the instance ... server is found that matches the hostname specified on the command line The hostname check is done using the ServerBindings property; ServerBindings is a list of strings in the form "IP address:Port

Ngày tải lên: 13/08/2014, 08:21

... collection using either the ordinal position in the collection or the parameter name.Ã Ã Item(Index)Ã Ã This retrieves a Parameter from the collection using either the ordinal position in the collection ... You’ll notice that there are some inline constants at the beginning of my code. Those constants were pulled from the adovbs.inc file that comes with ADO. The file contains all the ADO constants. ... adSmallInt—the field value is a 2-byte signed integer; adTinyInt—the field value is 1-byte; adUnsignedBigInt—the field value is an 8- byte... 8- byte unsigned integer; adUnsignedInt—the field

Ngày tải lên: 13/08/2014, 08:21

... types You create objects in a container using the create method and delete them using the delete method The objects are created and destroyed using these methods: Think of the members of a Collection ... is trusted by all the other domains The small number of "super administrators" in this domain can see the entire enterprise while protecting themselves from access. Individual computers ... a domain share the same local group For example, adding a user to the local Administrators group on one domain controller grants them administrative rights to all the domain controllers there

Ngày tải lên: 13/08/2014, 08:21

... text in a plain text file with the inf file à extension Create three scripts using the three filenames mentioned and put them in the same folder as the inf file To install the scripts, click Install ... shown in Listing 21.3, has one item for each list of files in the inf file In the listing, you see script.copy.js=10,"Scripts" This means that the operating system should copy all the files in the ... executing the setup file you download from the Microsoft Web site, there is an alternative Using the /c command-line options, unpack the contents of the Ãinstallation file into a folder; then, in

Ngày tải lên: 13/08/2014, 08:21

... executed The clock timer code state-is still the same as it was in Lstate-isting 4.2 The countertimer code is placed into its spot in the switch statement, incrementing the counter andthen updating the ... functionality, perform the following steps:1 Edit the OnInitDialogfunction, updating the code as in Listing 4.4 L ISTING 4.4 THE UPDATED OnInitDialog FUNCTION 1: BOOL CTimersDlg::OnInitDialog() 2: { ... Update the dialog 32: UpdateData(FALSE); variable, which is updated in the dialog window The last thing that you do is to start thetimer, specifying the ID_COUNT_TIMERID and using the interval

Ngày tải lên: 13/08/2014, 18:20

... brush To do this, add the two lines starting at line 21 in Listing 8.8 to the OnPaintfunction L ISTING 8.8 THE MODIFIED OnPaint FUNCTION 1: void CPaintDlg::OnPaint() 2: { 3: CPaintDC dc(this); // ... handler for the WM_PAINTsage on the second dialog class, adding the code in Listing 8.6 to the function created inyour class mes-L ISTING 8.6 THE OnPaint FUNCTION 1: void CPaintDlg::OnPaint() 2: ... DrawRegion(CPaintDC *pdc, int iColor, int iTool, int iShape), and the access as private Edit the code in thisfunction, adding the code in Listing 8.7 F IGURE 8.4 Drawing lines on the second dialog.

Ngày tải lên: 13/08/2014, 18:20

... const; continues... making a small gap between the buttons on either side Docking the Toolbar The last thing that you do in the code that you add to the OnCreate function in the CMainFrame class ... declarations in Listing 11.1 before the line that you searched for (The string that you searched for is the beginning marker for the Class Wizard maintained message map Anything you place between ... Search for the line BEGIN_MESSAGE_MAP and add the lines in Listing 11.2 just after it It’s important that this code be between the BEGIN_MESSAGE_MAP line and the //{{AFX_MSG_MAP line If these commands...

Ngày tải lên: 13/08/2014, 18:20

... edit the Serialize.cppfile, adding line 8 in Listing 13.28 L ISTING 13.28 INCLUDING THE RECORD CLASS HEADER IN THE MAIN SOURCE FILE 1: // Serialize.cpp : Defines the class behaviors for the application ... tell theview to refresh the current record information being displayed in the form One thing to keep in mind when writing this code is that you need to cast the pointer to the view as a pointer ... changessomehow need to make their way into the current record in the document If you aremaintaining a pointer in the view object to the current record object, you can call therecord object’s various

Ngày tải lên: 13/08/2014, 18:20

... command prompt window, change to the directory containing the program, and then run the program from the command line. Note viii Sams Teach Yourself the C# Language in 21 Days Using Iteration ... L. Jones the C# Language in 21 Days Teach Yourself DAY 1 WEEK 1 Getting Started with C# Welcome to Sams Teach Yourself C# in 21 Days! In today’s lesson, you begin the process of becoming a proficient ... Newline in constant The error message finds the correct line for the error, locating it in Line 5. The error messages found the error at location 46 on Line 5. This error message missed the point that...

Ngày tải lên: 13/08/2014, 08:20

... be printed later in the listing. Line 9 declares an integer and assigns the value 321 to it. Line 10 defines a double and assigns the value 123.45. Lines 12–13 print two pieces of text using System.Console.WriteLine(). ... System.Console.WriteLine(). You can see from the output that each of these prints on a separate line. Lines 15–16 show the System.Console.Write() routine. These two lines print on the same line. There is ... a starting point in an application: Main(). After you examined a listing, you dug into storing basic information in a C# application using variables. You learned how the computer stores information....

Ngày tải lên: 13/08/2014, 08:20

... j. Print the following message based on the file-type: s The filer is single m The filer is married filing at the single rate j The filer is married filing at the joint rate 2. Is the following ... myLine.len = System.Math.Sqrt( 28: (myLine.ending.x – myLine.starting.x) * 29: (myLine.ending.x – myLine.starting.x) + 30: (myLine.ending.y – myLine.starting.y)* 31: (myLine.ending.y – myLine.starting.y) ... straightforward. In Line 23, you assign the constant value 1 to the variable myLine.starting.x. In other words, you are assigning the value 1 to the x member of the starting member of myLine. Going from the...

Ngày tải lên: 13/08/2014, 08:20

... Line 27 contains a switch statement that switches based on the value in myColor. In Lines 29–35, the case statements in the switch don’t contain literal numbers; they contain the values of the ... are declared: ã point structure in Lines 1627 ã line class in Lines 3499 ã square class in Lines 106174 ã circle class in Lines 182237 ã WR01App class in Lines 239390 The line, square, and circle ... similar. The point structure is used to help organize the other classes. Dissecting the Main Method Looking closer at the listing, you see that the program flow actually starts in Line 244, where the...

Ngày tải lên: 13/08/2014, 08:20

... defined in the listing and Reading.cs is your listing name. If you compile Listing 9.10 using the /define switch, DEBUG is again defined with- out the need to change your code. Leaving the /define ... numbers are the starting point of the line. The last two are the ending point. After the lines have been drawn, calling the Dispose method cleans up the oGraphics object. This is done in Line 143. ... this listing: Lines.cs(102,16): warning CS1030: #warning: In Main ’ Lines.cs(106,16): warning CS1030: #warning: ‘Done with main’ Lines.cs(203,16): warning CS1030: #warning: In Method 1 ’ Lines.cs(303,16):...

Ngày tải lên: 13/08/2014, 08:20

... to the console. The first placeholder in each of these lines displays the floating-point value as a fixed-point number using the F specifier. The second placeholder prints the same variable in ... from the user. This information is obtained in Lines 15, 24, and 33 using the ReadLine method in Console. The first value obtained is the first name. This is appended into the name StringBuilder ... character value in Line 22. The character value is then appended to the string Input. After the entry of characters is completed, Line 27 prints the full value of the Input string. All the characters...

Ngày tải lên: 13/08/2014, 08:20

... Line 70 does. More important, by overloading the ToString method (Lines 83–85), you gain the capa- bility to “print” the class. When you display the class as shown in these lines, the ToString ... the catch in Line 287. Similar logic is used to determine whether the player wants to hit or stay in Lines 310–332. Looking at the Entire Deck You can take a quick look at all the cards in the ... class includes an array of cards in Line 70. The individual card structures in this array are initialized in the constructor of the deck (Lines 76–94). This initialization is done by looping through...

Ngày tải lên: 13/08/2014, 08:20