ASP.NET in a Nutshell, 2nd Edition

BinaryWrite | 377

HttpResponse

Class

This is the Title of the Book, eMatter Edition

Copyright © 2008 O’Reilly & Associates, Inc. All rights reserved.

Example

The following example retrieves a virtual path including the SessionID and

displays the path by using the Text property of the Message label control:

Sub Page_Load( )

Dim NewPath As String

NewPath = Response.ApplyAppPathModifier(Request.Path)

Message.Text = "Modified virtual path = " & NewPath

End Sub

The web.config file to set the Session state handler to use cookieless Sessions is

shown below:

<configuration>

<system.web>

<sessionState mode="InProc" cookieless="true"/>

</system.web>

</configuration>

Notes

This method is very useful when making use of the cookieless Session state func-

tionality introduced by ASP.NET. If the cookieless attribute of the

sessionState

config section in web.config is not set to True, this method will simply return the

virtual path passed in without modification.

BinaryWrite

Response.BinaryWrite(ByVal buffer( ) As Byte)

Allows writing of binary content to the output stream. No modification of the

output is performed before sending the binary content to the client.

Parameter

buffer( )

A Byte array containing the binary data to be written to the output stream.

Example

Here is an example of BinaryWrite:

Sub Page_Load( )

Dim ImageStream As New FileStream(MapPath("aspnetian.jpg"), _

FileMode.Open, FileAccess.Read)

Dim ImageBytes(ImageStream.Length) ...