Re: System.Security.Permissions.FileIOPermission

From: Simon Cheng (simon_cheng888_at_hotmail.com)
Date: 11/25/05 

Date: Thu, 24 Nov 2005 23:58:01 -0800

Yes.

"Dominick Baier [DevelopMentor]" <dbaier@pleasepleasenospamdevelop.com>
wrote in message news:4580be6314ddc08c7bfa8c1ebaebc@news.microsoft.com...
> Hello Simon,
>
> seems you are running in partial trust. Is this a hosted environment?
>
> ---------------------------------------
> Dominick Baier - DevelopMentor
> http://www.leastprivilege.com
>
>> Hi,
>>
>> I am getting the following error when trying to read an XML file. Is
>> there some setting in web.config or machine.config that needs to be
>> set?
>>
>> Thanks,
>> - Simon
>> Server Error in '/' 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: Request for the
>> permission of type System.Security.Permissions.FileIOPermission,
>> mscorlib, Version=1.0.5000.0, Culture=neutral,
>> PublicKeyToken=b77a5c561934e089 failed.
>>
>> Source Error:
>>
>> Line 9: string strXmlFileName = @".\Sample.xml";
>> Line 10: DataSet dsBasic = new DataSet();
>> Line 11: dsBasic.ReadXml(strXmlFileName);
>> Line 12:
>> Source File: e:\default.aspx Line: 11
>>
>> Stack Trace:
>>
>> [SecurityException: Request for the permission of type
>> System.Security.Permissions.FileIOPermission, mscorlib,
>> Version=1.0.5000.0,
>> Culture=neutral, PublicKeyToken=b77a5c561934e089 failed.]
>> System.Security.CodeAccessSecurityEngine.CheckHelper(PermissionSet
>> grantedSet, PermissionSet deniedSet, CodeAccessPermission demand,
>> PermissionToken permToken) +675
>> System.Security.CodeAccessSecurityEngine.Check(PermissionToken
>> permToken,
>> CodeAccessPermission demand, StackCrawlMark& stackMark, Int32
>> checkFrames,
>> Int32 unrestrictedOverride) +0
>> System.Security.CodeAccessSecurityEngine.Check(CodeAccessPermission
>> cap,
>> StackCrawlMark& stackMark) +88
>> System.Security.CodeAccessPermission.Demand() +62
>> System.IO.Path.GetFullPath(String path) +90
>> System.Xml.XmlResolver.ResolveUri(Uri baseUri, String relativeUri)
>> +599
>> System.Xml.XmlTextReader..ctor(String url, XmlNameTable nt) +91
>> System.Xml.XmlTextReader..ctor(String url) +65
>> System.Data.DataSet.ReadXml(String fileName) +48
>> ASP.default_aspx.Page_Load(Object Sender, EventArgs e) in
>> e:\content\winisp\paihungchen\paihungchen.members.winisp.net\default.a
>> spx:11
>> System.Web.UI.Control.OnLoad(EventArgs e) +67
>> System.Web.UI.Control.LoadRecursive() +35
>> System.Web.UI.Page.ProcessRequestMain() +2112
>> System.Web.UI.Page.ProcessRequest() +218
>> System.Web.UI.Page.ProcessRequest(HttpContext context) +18
>>
>> System.Web.CallHandlerExecutionStep.System.Web.HttpApplication+IExecut
>> ionStep.Execute()
>> +179
>> System.Web.HttpApplication.ExecuteStep(IExecutionStep step,
>> Boolean&
>> completedSynchronously) +87
>
>

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