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Programming Visual Basic .NET by Dave Grundgeiger

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ASP.NET Objects: Interacting with the Framework

The ASP.NET framework exposes functionality to web applications through a number of so-called intrinsic objects. These objects are available through the Server, Application, Session, Cache, Request, and Response properties of the Page object. This section gives an overview of these objects.

The Server Object

The Server object is an instance of the HttpServerUtility class (defined in the System.Web namespace). This object provides information and services related to the web server. The HttpServerUtility class has two properties:

MachineName

Gets the name of the machine on which the application is running. The type is String.

ScriptTimeout

Gets or sets the web-request timeout in seconds. The type is Integer. The default is 90 seconds.

Some of the commonly used methods are:

ClearError

Clears the last exception that occurred (see also GetLastError in this list). The syntax is:

Public Sub ClearError(  )
Execute

Executes a request to another page. After the other page is processed, processing of the current page continues. The Execute method has two overloads. The first is:

Public Overloads Sub Execute(ByVal path As String)

The path parameter specifies the path of the web page file to be executed. With this form of the Execute method, the output of the web page is intermingled with the output of the calling page.

The second overload is:

Public Overloads Sub Execute(ByVal path As String, _
   ByVal writer As System.IO.TextWriter)

Again, the path ...

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