ASP Application Object

ASP Application Object	ASP.NET Application Object
Contents	Contents
StaticObjects	StaticObjects
Contents.Remove	Contents.Remove
Contents.RemoveAll	Contents.RemoveAll
Lock	Lock
Unlock	Unlock
Application_OnEnd	Application_OnEnd (Global.asax)
Application_OnStart	Application_OnStart (Global.asax)

ASP2ASPX migrates from ASP Server object to ASP.NET Server object (System.Web.HttpServerUtility).

ASP Server Object	ASP.NET Server Object
ScriptTimeout	ScriptTimeout
CreateObject	CreateObject or New Instance
Execute	Execute
GetLastError	GetLastError
HTMLEncode	HtmlEncode
MapPath	MapPath
Transfer	Transfer
URLEncode	UrlDecode

ASP2ASPX migrates from ASP Request object to ASP.NET Request object (System.Web.HttpRequest).

ASP Request Object	ASP.NET Request Object
ClientCertificate	ClientCertificate
Cookies	Cookies
Form	Form
QueryString	QueryString
ServerVariables	ServerVariables
TotalBytes	TotalBytes
BinaryRead	BinaryRead

The changes are related to the Request object and are shown in following table:

API Changes

Method	Change
Request(item)	In ASP, this property is a Collection. In ASP.NET, Request is a NameValueCollection property that returns a string based on the passed in item key.
Request.QueryString(item)	In ASP, this property is a Collection. In ASP.NET, QueryString is a NameValueCollection property that returns a string based on the passed in item key.
Request.Form(item)	In ASP, this property is a Collection. In ASP.NET, Form is a NameValueCollection property that returns a string based on the passed in item key.

The changes are basically the same for all properties involved.

If the item you are accessing contains exactly one value for the specified key, you do not need to modify your code. However, if there are multiple values for a given key, you need to use a different method to return the collection of values. Also, note that collections in Visual Basic .NET are zero-based, whereas the collections in VBScript are one-based.

For example, in ASP the individual query string values from a request to

http://localhost/myweb/valuetest.asp?values=10&values=20 would be accessed as follows:

<%    'This will output "10"    Response.Write Request.QueryString("values")(1)    'This will output "20"    Response.Write Request.QueryString("values")(2) %>

Following code is generated by ASP2ASPX.
In ASP.NET, the QueryString property is a NameValueCollection object from which you would need to retrieve the Values collection before retrieving the actual item you want. Again, note the first item in the collection is retrieved by using an index of zero rather than one.

<%     'This will output "10"     Response.Write(Request.QueryString.GetValues("values")(1 - 1))     'This will output "20"     Response.Write(Request.QueryString.GetValues("values")(2 - 1)) %>

ASP2ASPX migrates from ASP Response object to ASP.NET Response object (System.Web.HttpResponse).

ASP Response Object	ASP.NET Response Object
Cookies	Cookies
Buffer	Buffer
CacheControl	CacheControl
Charset	Charset
ContentType	ContentType
Expires	Expires
ExpiresAbsolute	ExpiresAbsolute
IsClientConnected	IsClientConnected
Pics	Pics
Status	Status
AddHeader	AddHeader
AppendToLog	AppendToLog
BinaryWrite	BinaryWrite
Clear	Clear
End	End
Flush	Flush
Redirect	Redirect
Write	Write

ASP2ASPX migrates from ASP ObjectContext object to ASP.NET ObjectContext object (System.EnterpriseServices.ContextUtil).

ASP ObjectContext Object	ASP.NET ContextUtil Object
SetAbort	SetAbort
SetComplete	SetComplete
OnTransactionAbort	OnTransactionAbort
OnTransactionCommit	OnTransactionCommit

ASP.NET has no the Error Object, so ASP2ASPX replaces it with Exception class of .NET. Please see also the GetLastError of the ASP.NET server object.