With Target="_blank" it does not work, with Target="_top", it works.
Server Error in '/ContactManagement' Application.
Attempted to perform an unauthorized operation.
Description:An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.UnauthorizedAccessException: Attempted to perform an unauthorized operation.
ASP.NET is not authorized to access the requested resource. Consider granting access rights to the resource to the ASP.NET request identity. ASP.NET has a base process identity (typically {MACHINE}\ASPNET on IIS 5 or Network Service on IIS 6 and IIS 7, and
the configured application pool identity on IIS 7.5) that is used if the application is not impersonating. If the application is impersonating via <identity impersonate="true"/>, the identity will be the anonymous user (typically IUSR_MACHINENAME) or the
authenticated request user.
To grant ASP.NET access to a file, right-click the file in File Explorer, choose "Properties" and select the Security tab. Click "Add" to add the appropriate user or group. Highlight the ASP.NET account, and check the boxes for the desired access.
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:
[UnauthorizedAccessException: Attempted to perform an unauthorized operation.] System.Security.Principal.WindowsIdentity.get_AuthenticationType() +275 System.Web.HttpRequest.CalcDynamicServerVariable(DynamicServerVariable var) +9676203 System.Web.HttpServerVarsCollectionEntry.GetValue(HttpRequest request) +33 System.Web.HttpServerVarsCollection.GetServerVar(Object e) +42 System.Web.HttpServerVarsCollection.Get(Int32 index) +33 System.Web.HttpServerVarsCollection.GetValues(Int32 index) +12 System.Collections.Specialized.NameValueCollection.Add(NameValueCollection c) +84 System.Web.HttpRequest.FillInParamsCollection() +90 System.Web.HttpRequest.GetParams() +80 System.Web.HttpRequest.get_Params() +30 AjaxControlToolkit.ToolkitScriptManager.OutputCombinedScriptFile(HttpContext context) +48 AjaxControlToolkit.ToolkitScriptManager.OnInit(EventArgs e) +51 System.Web.UI.Control.InitRecursive(Control namingContainer) +134 System.Web.UI.Control.InitRecursive(Control namingContainer) +290 System.Web.UI.Control.InitRecursive(Control namingContainer) +290 System.Web.UI.Control.InitRecursive(Control namingContainer) +290 System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +489 |
Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.0.30319.18067