IIS, Visual studio issue

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Hi,

Pls help me on below issue

I am trying to hide header and footer which printed default by browser when i print any document .
I am able to hide browser header and footer from print through writing some code.
For hiding header and footer i am deleting printer registery settings via code and after print task completed i am restoring default prtinter registery again .

now problems come here it is only working in visual studio i.e. development environment.
But when i am publishing it on IIS it is not working.

Pls suggest some to work this on IIS

Thanks,

Posted 1-Oct-13 2:38am

Pro86

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Kornfeld Eliyahu Peter 1-Oct-13 8:47am

It's possible that you have no permissions to change the registry?

Pro86 1-Oct-13 9:21am

but it is not giving any permission related error

Pro86 1-Oct-13 9:21am

i am able to do via visual studio

Kornfeld Eliyahu Peter 1-Oct-13 9:36am

May I see your code that changes the registry?
(Or a full working project to debug...)

Pro86 1-Oct-13 9:44am

actually no need to debug the code. Code is working fine in visual studio.
Its not working when i published this on IIS and I am not getting any error also from IIS.

Kornfeld Eliyahu Peter 1-Oct-13 9:45am

I plan to check it on IIS after publishing it...
(When I wrote debug, didn't mean to use VS...)

Pro86 1-Oct-13 9:57am

Private Sub GetPrintSettings()
Dim keyname As String = "Software\Microsoft\Internet Explorer\PageSetup"
Dim key As RegistryKey = Registry.CurrentUser.OpenSubKey(keyname, True)
If key IsNot Nothing Then
Dim old_header As String = key.GetValue("header").ToString()
Dim old_footer As String = key.GetValue("footer").ToString()
key.SetValue("header", "&w")
key.SetValue("footer", "")

End If
-----------------------------------------------------------------------------

<webmethod()> _
Public Shared Function updatePrintSettings() As Boolean
updatePrintSettings = False
Dim updatekeyname As String = "Software\Microsoft\Internet Explorer\PageSetup"
Dim updatekey As RegistryKey = Registry.CurrentUser.OpenSubKey(updatekeyname, True)
If updatekey IsNot Nothing Then

updatekey.SetValue("header", "&w&bPage &p of &P")
updatekey.SetValue("footer", "&u&b&d")
updatePrintSettings = True
End If

End Function
--------------------------------------------------------------------------------

Kornfeld Eliyahu Peter 1-Oct-13 10:04am

I will check it, but first!!!
I hope you understand that this will work - anyway - only for you. The code you have is changing the registry on the IIS machine!!! Not on the client. So if you truly will publish this site to the wild WEB it will not affect the printing of the end users!!!

Pro86 3-Oct-13 2:51am

ok,
Thanks for reply.

Is there any other way to hide browser header and footer from print page

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Kornfeld Eliyahu Peter · Answer 1 · 2013-10-01T19:56:00

As I told earlier, it's a permission problem.
I can't tell you from the code you provided why you can't see the error message, but when reproducing the problem I got a clear permission error...

Server Error in '/RegistryTest' Application.
--------------------------------------------------------------------------------

Security Exception 
Description: The application attempted to perform an operation not allowed by the security policy.  To grant this application the required permission please contact your system administrator or change the application's trust level in the configuration file. 

Exception Details: System.Security.SecurityException: Requested registry access is not allowed.

Source Error: 


Line 8:  		protected void Page_Load ( object sender, EventArgs e )
Line 9:  		{
Line 10: 			RegistryKey oKey = Registry.LocalMachine.OpenSubKey( @"SOFTWARE\Michlol2000", true );
Line 11: 
Line 12: 			DateTime oNow = Convert.ToDateTime( oKey.GetValue( "Now" ) ); 

Source File: c:\m2000_net\Local\Registry\Registry\Default.aspx.cs    Line: 10 

Stack Trace: 


[SecurityException: Requested registry access is not allowed.]
   System.ThrowHelper.ThrowSecurityException(ExceptionResource resource) +52
   Microsoft.Win32.RegistryKey.OpenSubKey(String name, Boolean writable) +10629081
   RegistryTest.Default.Page_Load(Object sender, EventArgs e) in c:\m2000_net\Local\Registry\Registry\Default.aspx.cs:10
   System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +51
   System.Web.UI.Control.OnLoad(EventArgs e) +92
   System.Web.UI.Control.LoadRecursive() +54
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +6704
   System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +245
   System.Web.UI.Page.ProcessRequest() +72
   System.Web.UI.Page.ProcessRequestWithNoAssert(HttpContext context) +21
   System.Web.UI.Page.ProcessRequest(HttpContext context) +58
   ASP.default_aspx.ProcessRequest(HttpContext context) in c:\Windows\Microsoft.NET\Framework\v4.0.30319\Temporary ASP.NET Files\registrytest\c3463957\356fb4d5\App_Web_irghuleb.0.cs:0
   System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +341
   System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +69
 


--------------------------------------------------------------------------------
Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.0.30319.18331

The reason is that when you run from VS you use your own identity, which probably has all the permissions to read and write registry...
When you run directly against iis you got the pool identity which by default is ApplicationPoolIdentity. This identity has no permissions even to read registry!!!
To resolve it you can change the pool identity to someone has permissions, LocalSystem for instance...

---

Not part of the answer but very very VERY important in my opinion.
Do not use registry if you have no an extremely good reason to do so. And never do it from an web application - web application is for the client!!! your code running on the server, which means that actions of the client will change the registry on the server!!! (that's your case!!!)
If you have configuration values to store use config file.

Regards
Peter