C# ПІДРУЧНИКИ / c# / MS Press - Msdn Training Programming Net Framework With C#

5.What .NET component compiles MSIL into CPU specific native code?

The just-in-time (JIT) compiler.

6.What feature of .NET ensures that object memory is freed?

The garbage collection process.

Module 3: Working with

Components

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! To add button event handlers

1.In the form, double-click the Execute button to create a button-click event handler.

2.Add the following code to the event handler to create an instance of the C# component and Visual Basic component, and add their strings to the listbox.

//Local Variables

CSStringComp myCompCS = new CSStringComp(); VBStringComp myCompVB = new VBStringComp(); int stringCount=0;

//Display results from C# Component

for (stringCount=0; stringCount<myCompCS.Count;! stringCount++)

{

listBox1.Items.Add(myCompCS.GetString(stringCount));

}

//Display results from Visual Basic Component for (stringCount=0; stringCount<myCompVB.Count;!

stringCount++)

{

listBox1.Items.Add(myCompVB.GetString(stringCount));

}

3.In the form, double-click the Close button to create a button-click event handler.

4.In the Close button event handler, call the Close method to close the form.

5.Compile and run the application. When you click the Execute button, the list box should be filled with four C# strings and four Visual Basic strings.

Testing the ASP.NET Client

To test the ASP.NET page, the following software must be installed on the test computer:

!Microsoft Internet Information Services (IIS)

!The .NET Framework common language runtime

!The .aspx file that contains the client code

!All compiled components that are required by the client application

You must configure a virtual directory that points to the directory that contains the .aspx file. You can use the New Directory Wizard in the IIS snap-in to do this.

viModule 3: Working with Components

!To configure a virtual directory

1.Click the Start menu, click Control Panel, click Performance and Maintenance, click Administrative Tools, and then click Internet Information Services.

2.Expand the computer icon, expand the Web Sites folder, and then expand and select Default Web Site.

3.On the Action menu, point to New, and then click Virtual Directory. The Virtual Directory Creation Wizard is launched.

4.Click Next to continue.

5.In the Alias text box, type Test and click Next.

6.Browse to the <install folder>\Labs\Lab03.3\SOLUTION\ASP.NET_Client folder that contains the file ClientASP.NET.aspx, click OK, and then click

Next.

7.On the Access Permissions page, accept the default selections, click Next, and then click Finish.

The Test folder is added to the Default Web Site.

Ensure that the compiled component DLLs, CompCS.dll and CompVB.dll, are in a \Bin subdirectory under the starting point for the application virtual directory.

! To test the ASP.NET Client

•Open Microsoft Internet Explorer, and type the following text in the Address bar:

http://localhost/Test/ClientASP.NET.aspx

When you press ENTER, the following display, or one similar to it, appears.

Multimedia

This section lists the multimedia items that are part of this module. Instructions for launching and playing the multimedia are included with the relevant slides.

ASP.NET Execution Model

This animation will show students how ASP.NET pages are processed on the server.