Add Page Directives Programmaticall y?

[xeroxero]

I would like to set the following Page directives in my C# code-behind
for ASP.NET 2.0 Web Application Project and also in a ASP.NET 2.0 Web
Site. What event should I hook and what should the code look like?

MaintainScrollP ositionOnPostba ck
ViewStateEncryp tionMode
LinePragmas
Title
Thanks.

[Rob MacFadyen]

xeroxero,

The first two are simple:

Page.MaintainSc rollPositionOnP ostBack = true;
Page.Title = "hello";

The page ViewStateEncryp tionMode property complains with an exception if you
try to set it manually: "The 'ViewStateEncry ptionMode' property can only be
set in the page directive or in the <pagesconfigura tion section"

Probably for security reasons, if a page has been configured to require
encrypted viewstate... well... allowing the code to change this would be
incorrect (given that the declaritive security requirements should override
requirements expressed in code). So... you're out of luck there.

However there is the "RegisterRequir esViewStateEncr yption()"... which will
force the veiwstate to be encrypted. This must be done in prerender or
before.

As to LinePramas... I think you're out of luck. LinePragmas is more of an
instruction to the ASP.NET compiler (the one that produces pure C#/VB.NET
code that is then compiled by .net). By the time your code is running...
it's already way too late (code has been generated and compiled).

Regards,

Rob MacFadyen

"xeroxero" <xe******@newsg roups.nospam wrote in message
news:kr******** *************** *********@4ax.c om...

>
I would like to set the following Page directives in my C# code-behind
for ASP.NET 2.0 Web Application Project and also in a ASP.NET 2.0 Web
Site. What event should I hook and what should the code look like?

MaintainScrollP ositionOnPostba ck
ViewStateEncryp tionMode
LinePragmas
Title
Thanks.

[Steven Cheng[MSFT]]

Thank for Rob's informative suggestions.

Hi Xeroxero,

I think Rob has answered all your questions completely.

Just some add on to the ViewState encryption, if you want to use
Page.RegisterRe quiresViewState Encryption to programmaticall y set ViewState
be encrypted, you need to ensure the "viewStateEncry ptionMode" is set as
Auto(default setting) in @page directive or web.config. You can get some
more detailed description about ViewState encryption in ASP.NET 2.0 and its
related settings in the following msdn article:

#How To: Configure MachineKey in ASP.NET 2.0
http://msdn.microsoft.com/library/en...7.asp?frame=tr
ue

As for the "LinePramas ", I'm afraid Rob is right, this is a pure compile
time specfic setting and at runtime, we haven't any means to configure
it(even if we have such a property, it's too late at runtime to control
compilation behavior).

If there is any other information you wonder, please feel free to post here.

Sincerely,

Steven Cheng

Microsoft MSDN Online Support Lead

This posting is provided "AS IS" with no warranties, and confers no rights.

[Steven Cheng[MSFT]]

Hello Xeroxero,

Have you got any further ideas on this question or does our reply help you
a little? If there is anything else we can help, please feel free to post
here.

Sincerely,

Steven Cheng

Microsoft MSDN Online Support Lead
This posting is provided "AS IS" with no warranties, and confers no rights.