Israel Aéce - All Comments

re: Server.Transfer is limited?

$tealth — Sat, 03 May 2008 19:28:49 GMT

Well clearly from that reflector dump the Server.Transfer method needs a little re-coding to work the way it should and not just for Page types.

I read somewhere a tech at Microsoft said this was a design decision to prevent an endless recursive operation resulting in stack overflow...crap! Why?, well there's nothing to stop that happening if you used Server.Transfer in a Page that transfered back to itself, so not a good reason, just a cock up if you wrote code that got itself in that sort of mess.

I overcame this problem by chaining method calls together, like the following pseudocode illustrates:

class A : IHttpHandler {

public void ProcessRequest(HttpContext context) {

if (context.Request["type"]=="b") {

IHttpHandler b = new B();

b.ProcessRequest(context);

}

class B : IHttpHandler {

public void ProcessRequest(HttpContext context) {

Render response...

}

Not elegant either, but until Server.Transfer gets fixed at least it stops the round trip overhead incurred with Response.Redirect.

re: Server.Transfer is limited?

sudheer — Thu, 10 Jan 2008 13:02:16 GMT

what are the reasons like asp.net server was overloaded,

so, can you please explan me why it happens

what are the reasons please let me know

re: Contract between ASPX and ASCX

Christophe Fouquet — Sat, 06 Jan 2007 02:44:21 GMT

Another solution is to make a base class in AppCode and make a virtual method. You can then use this as a base for your page and override the method. The ascx has then no problem calling via the base. As a side note,

I found that making a base class in AppCode for all pages in a site is really handy. For instance, we have a GetLink() static method on the base that returns the path the page (derived).

In AppCode

public class AdminHomeBase : Page

{

public static string GetLink() { return "~/Admin/main.aspx"; }

}

In Code File

public partial AdminHome : AdminHomeBase

{

}

Now in any ascx anywhere on the site you can make a link to the admin page

MyLinkNavigateUrl = typeof(AdminHomeBase).GetLink();

Nice to have a compile time check for all your page links isn't it?

re: Server.Transfer is limited?

Marco von Frieling — Tue, 02 Jan 2007 19:49:13 GMT

I've exactly the same problem: Creating binary files from the inputs of the transferring Page. The type of input/data is related to tax, National Insurance etc. and should therefore transferred to the handler directly on the server.

Any idea?

re: WTF!

israel aece — Tue, 12 Dec 2006 11:45:40 GMT

Hello Mladen,

VB.NET has a short-circuit operator: OrElse and AndAlso, so in OrElse case, if the first condition is True, the second is not evaluated. But all conditions in above code are making the same verification.

If you need to test thenstring value, you only need to use the static method IsNullOrEmpty of String class.

Thanks for comment.

re: WTF!

Mladen — Tue, 12 Dec 2006 11:28:31 GMT

besides the obvious WTF,

does VB evalate all of the conditions in the or?

because C# stops when it reaches the first true.

so if

str is Nothing and VB evaluates them all

then Len(str) = 0 will throw an exception.

won't it?

re: HTTP Pipeline - Performance

israel aece — Wed, 22 Nov 2006 16:10:37 GMT

Hi,

In ASP.NET/.NET 2.0 there is a Web.Config file in C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\CONFIG\ path where you can view the default httpModules.

re: HTTP Pipeline - Performance

Wed, 22 Nov 2006 15:37:27 GMT

very interesting, there is httpmodules section in 1.1 machine.config, but I'm it is not in the 2.0. Could you point to where this trick could be implemented in 2.0?

re: Checking authorization through roles

Israel Aece — Tue, 31 Oct 2006 18:56:27 GMT

OK, when you call the IsUserInRole the ASP.NET runtime get roles from GenericPrincipal but, for each request, it's necessary to bind a Principal because the HTTP is stateless.

So, if you don't caching roles in client-side (cookies), each request the stored procedure aspnet_UsersInRoles_GetRolesForUser is performed for retrieve the current roles for user.

Thanks!

re: Checking authorization through roles

Andrey Skvortsov — Tue, 31 Oct 2006 18:28:21 GMT

He means "every request",I suppose-every request must be authentificated,so array of roles retrieved to construct GenericPrincipal.

Regards.