ASP.NET Pages

Hi all,

I am well confuse with
1) server.transfer
2) server.execute
3) server.response
4) response.redirect

Can any one explain with example.

Thanks,
M.Maheswar

Hi Maheswar,

There is no such called server.response.

Both "Server" and "Response" are objects of ASP.NET. Server.Transfer and Response.Redirect both are used to transfer a user from one page to another. But there is an underlying difference.

//Usage of Server.Transfer & Response.Redirect
Server.Transfer("Page2.aspx");
Response.Redirect("Page2.aspx");

Response.Redirect:- statement sends a command back to the browser to request the next page from the server. This extra round-trip is often inefficient and unnecessary, but this established standard works very well. By the time Page2 is requested, Page1 has been flushed from the server's memory and no information can be retrieved about it unless the developer explicitly saved the information using some technique like session, cookie, application, cache etc.

Server.Transfer:- method simply renders the next page to the browser without an extra round trip. Variables can stay in scope and Page2 can read properties directly from Page1 because it's still in memory. This technique would be ideal if it wasn't for the fact that the browser is never notified that the page has changed. Therefore, the address bar in the browser will still show "Page1.aspx" even though the Server.Transfer statement actually caused Page2.aspx to be rendered instead. This may occasionally be a good thing from a security perspective, it often causes problems related to the browser being out of touch with the server. Say, the user reloads the page, the browser will request Page1.aspx instead of the true page (Page2.aspx) that they were viewing. In most cases, Response.Redirect and Server.Transfer can be used interchangeably. But in some cases, efficiency or usability may be the deciding factor in choosing.

Server.Execute

When Server. Execute is used, a URL is passed to it as a parameter, and the control moves to this new page. Execution of code happens on the new page.
Once code execution gets over, the control returns to the initial page, just after where it was called.

Thanks

Hi Anuja Pawar,

Now ,I become wiser on this topic .

Thanks
Anuja

Response.Redirect:

In this the server basically sends an HTTP header back to the client browser with an HTTP status code stating that the object has moved along with the new location to find it.

In Response.Redirect two requests by the browser

First: that the requested resource (page) can be found at a new location

Second:The browser then initiates another request for loading its contents in the browser.

Server.Transfer:

transfers execution from the first page to the second page on the server.The benefit of this approach is one less round trip to the server from the client browser.

Server.Execute:

This method executes the HTTP handler corresponding to the given path. None of the pipeline events (for HTTP Modules or GLOBAL.ASAX) are fired and thus, for example, authentication rules are by-passed.