Security Exception in ASP.Net Validator

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I am using asp.net validators like RequiredFieldValidattor, RegularExpre... . It is working on my system. but when I upload my site on to the hosting server then it is throwing Security Exception.
The Error Message of Security Exception is :

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: Request for the permission of type 'System.Security.Permissions.FileIOPermission, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed.
Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace:


[SecurityException: Request for the permission of type 'System.Security.Permissions.FileIOPermission, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed.]
   System.Security.CodeAccessSecurityEngine.Check(Object demand, StackCrawlMark& stackMark, Boolean isPermSet) +0
   System.Security.CodeAccessPermission.Demand() +58
   System.Reflection.Assembly.VerifyCodeBaseDiscovery(String codeBase) +118
   System.Reflection.Assembly.get_CodeBase() +35
   System.Web.Handlers.ScriptResourceHandler.GetCodeBaseWithAssert(Assembly assembly) +31
   System.Web.Handlers.ScriptResourceHandler.GetLastWriteTime(Assembly assembly) +36
   System.Web.Handlers.ScriptResourceHandler.GetAssemblyInfoInternal(Assembly assembly) +61
   System.Web.Handlers.ScriptResourceHandler.GetAssemblyInfo(Assembly assembly) +62
   System.Web.Handlers.RuntimeScriptResourceHandler.System.Web.Handlers.IScriptResourceHandler.GetScriptResourceUrl(Assembly assembly, String resourceName, CultureInfo culture, Boolean zip, Boolean notifyScriptLoaded) +325
   System.Web.Handlers.ScriptResourceHandler.GetScriptResourceUrl(Assembly assembly, String resourceName, CultureInfo culture, Boolean zip, Boolean notifyScriptLoaded) +33
   System.Web.UI.ScriptManager.GetScriptResourceUrl(String resourceName, Assembly assembly) +89
   System.Web.UI.ScriptRegistrationManager.RegisterClientScriptResource(Control control, Type type, String resourceName) +111
   System.Web.UI.ScriptManager.RegisterClientScriptResource(Control control, Type type, String resourceName) +9

Please give me help for that. Without using of Validator page is running sucessfully

Posted 7-Jun-10 3:21am

Lalit Kumar 5733

Updated 7-Jun-10 4:59am

Tom Deketelaere

v2

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Comments

Jamil Hallal 7-Jun-10 9:34am

Can you post the code of your validator?

3 solutions

Solution 3

<system.web><trust level="Full">

i have added but no solution... i also getting error when i am using System.IO

Posted 8-Jun-10 6:02am

Lalit Kumar 5733

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Shahriar Iqbal Chowdhury/Galib · Accepted Answer · 2010-06-07T21:59:00

Solution 1

Hi,

Use the configuration below under system.web section of web.config

<system.web><trust level="Full"/></system.web>

Thanks

Posted 7-Jun-10 21:59pm

Shahriar Iqbal Chowdhury/Galib

Arindam Tewary · Accepted Answer · 2010-06-07T22:04:00

Hi

You might try with following
Add in entry in web.config mentioning trust level as full.

<trust level="Full" originUrl="" />

If it does not work for you please refer here which discusses a lot for this exception and possible accepted solution,

http://social.msdn.microsoft.com/Forums/en-US/asmxandxml/thread/b1db5b9f-50a4-4a21-aba1-afeb30957efd[http://social.msdn.microsoft.com/Forums/en-US/asmxandxml/thread/b1db5b9f-50a4-4a21-aba1-afeb30957efd]

Hope that helps,