I tried to test a web page with authentication. The login page was fine, but after login, no matter authenticated successfully or not, an error with such message appeared:
Server Error in '/' Application.
Showing a modal dialog box or form when the application is not running in UserInteractive mode is not a valid operation. Specify the ServiceNotification or DefaultDesktopOnly style to display a notification from a service application.
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.InvalidOperationException: Showing a modal dialog box or form when the application is not running in UserInteractive mode is not a valid operation. Specify the ServiceNotification or DefaultDesktopOnly style to display a notification from a service application.
Stack Trace:
[InvalidOperationException: Showing a modal dialog box or form when the application is not running in UserInteractive mode is not a valid operation. Specify the ServiceNotification or DefaultDesktopOnly style to display a notification from a service application.]
System.Windows.Forms.MessageBox.ShowCore(IWin32Window owner, String text, String caption, MessageBoxButtons buttons, MessageBoxIcon icon, MessageBoxDefaultButton defaultButton, MessageBoxOptions options, Boolean showHelp) +1094
Microsoft.VisualBasic.Interaction.MsgBox(Object Prompt, MsgBoxStyle Buttons, Object Title) +310
XXX.Login.LoginUser_Authenticate(Object sender, AuthenticateEventArgs e) in "a path that is not in the testing server"\Login.aspx.vb:56
System.Web.UI.WebControls.Login.AttemptLogin() +144
System.Web.UI.WebControls.Login.OnBubbleEvent(Object source, EventArgs e) +107
System.Web.UI.Control.RaiseBubbleEvent(Object source, EventArgs args) +50
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +5028```
(Development and testing of the web page are done in different remote connections, but that path is actually in the development server.)
Even after I commented out the method Protected Sub LoginUser_Authenticate(ByVal sender As Object, ByVal e As AuthenticateEventArgs), such exception still occurred, unless I take away OnAuthenticate="LoginUser_Authenticate" from <asp:Login>(another exception occurs though).
Anyone knows what's the reason of the occurrence of such exception? I have totally no idea about the content in the stack trace.
Related
I have a server whose sole purpose is to host a prebuilt IIS app from a vendor.
The server has been built, IIS is working, and with everything installed, the app is accessible from http://servername.domain.com/app
I want to add an alternate URL, to be http://appname.domain.com/app, for ease of use and cleanliness.
I added the binding on both ports 80 and 443 with our site cert, using all unassigned IPs and none of the boxes ticked.
Despite changing nothing but the bindings, I'm getting the following error attempting to use the newly bound URL:
Value cannot be null.
Parameter name: source
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.ArgumentNullException: Value cannot be null.
Parameter name: source
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:
[ArgumentNullException: Value cannot be null.
Parameter name: source]
System.Linq.Enumerable.Where(IEnumerable`1 source, Func`2 predicate) +6466184
Xtraction.Web.Auth.Authenticate.HasSingleActiveProvider() +185
Xtraction.Web.Auth.Authenticate.Page_Load(Object sender, EventArgs e) +115
System.Web.UI.Control.OnLoad(EventArgs e) +106
Xtraction.Web.PageBase.OnLoad(EventArgs e) +17
System.Web.UI.Control.LoadRecursive() +68
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +3785
Based on the error information you provided, the reason I retrieved is that your application pool is not set up to use a service account, which prevents you from logging into Xtraction.
You need to set the application pool to use the Windows service account:
Go to IIS Manager > Servers > Application Pools > Xtraction
Click the Advanced Settings link in the right pane
Go to the Identity section, if it's set to Network Service, then click the ellipsis on the right
Change to "Custom Account" and enter your service account - this must have dbowner (or at least db_datareader and db_datawriter)
permissions on the Xtraction database
Click OK and restart the application pool (or execute iisreset). You should now be able to log in to Xtraction
For more information, you can refer to this link.
We recently upgraded a web server to Win2012 (from 2008) and started using ActiveDirectory. The main web site uses an external order form written in C# (ASP.NET 2.0). Everything was working fine in the old server until we migrated. Now I get errors when trying to read Session variables in IE 11 (everything works with other browsers).
This is the error I get with the line causing it:
Server Error in '/' Application.
Object reference not set to an instance of an object.
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.NullReferenceException: Object reference not set to an instance of an object.
Source Error:
Line 974: private void WriteTextConfirmation ()
Line 975: {
Line 976: string sFolders_OrderForm = Session ["Folders_OrderForm"].ToString ();
Line 977: string sOrderNumber = Session ["OrderNumber"].ToString ();
Line 978:
Source File: d:\Web Sites\Order Form\SubmitOrder.aspx.cs Line: 976
Stack Trace:
[NullReferenceException: Object reference not set to an instance of an object.]
SubmitOrder.WriteTextConfirmation() in d:\Web Sites\Order Form\SubmitOrder.aspx.cs:976
SubmitOrder.Page_Load(Object sender, EventArgs e) in d:\Web Sites\Order Form\SubmitOrder.aspx.cs:1189
System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) +24
System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +41
System.Web.UI.Control.OnLoad(EventArgs e) +131
System.Web.UI.Control.LoadRecursive() +65
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +2427
The problem is that the Session variables that are being read are null. They should be set in the Default form and passed for use in the SubmitOrder form. These variables work with FireFox and Chrome but fail in IE. I'm not sure why this would occur.
We had the same problem and setting the session state to cookieless in Web.config fixed our problem.
Since you are saying that it is browser-specific, it would have to be a setting with the browser. Maybe you have cookies turned off?
Update
I did some searching, and it looks like it could still be cookie related.
Session variable empty in iis7 application
Another common cause of this issue is when the server name contains
underscores (e.g. DEV_TEST). Underscores aren't allowed as host names,
and could interfere with the ability to set cookies.
This Server Fault question has a few answers saying the same thing:
https://serverfault.com/questions/178733/iis-7-0-does-not-keep-session-variables
And another SO question saying underscores:: IE8 does not keep Session Variables
More from Google: https://www.google.com/search?q=iis+application+session+variables+IE
I am developing an application in asp.net 2.0.
In one form i have a button, and on click which will insert data into database.
now after inserting if i click bowser refresh button i am getting the following error.
Refresh detected 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.Web.HttpException: Refresh detected
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:
[HttpException (0x80004005): Refresh detected]
WebTemplate.Template.RefreshProtectModule.appl_AcquireRequestState(Object
source, EventArgs e) +351
System.Web.SyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
+68 System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +75
Thanks in advance..
Hitting refresh is actually the same as clicking the button to insert data again. Your button click event should probably redirect the user to a new page.
Apparently you're using something called "RefreshProtectModule" which does not allow refresh. On one hand that's good - otherwise your form would insert record into DB on every refresh. On the other - you have to handle the "Refresh detected" exception and handle it graciously.
I've usually avoided in-proc session state, until this recent project. I think I have a problem where the state is lost after an unhandled exception occurs.
This in itself is odd, since exceptions in the context of a request don't down the worker process. It could be an exception on a background thread or a callback or something but, this is a simple site and there's nothing fancy going on.
The session ID remains the same and Session_Start is not called on the subsequent request (so the WP hasn't recycled).
I have quite a lot of logging enabled, and its plain to see that I get an exception from the data tier, its an HttpException inside a HttpUnhandleException, then when I browse immediately after to the home page, the request logs a warning about the missing state.
Worse. This doesn't happen on my dev box (IIS Express), only in QA.
Edit:
Here's a chunk of log:
2013-06-12 13:44:29,975 [23] FATAL MvcApplication 100.100.100.100 pxtgn GET An unhandled exception occurred in the web application. The full exception will be unrolled below.
2013-06-12 13:44:30,897 [23] FATAL MvcApplication 100.100.100.100 pxtgn GET Exception.Type: HttpUnhandledException
Exception.Source: System.Web
Exception.Message: Exception of type 'System.Web.HttpUnhandledException' was thrown.
Exception.StackTrace: at System.Web.UI.Page.HandleError(Exception e)
at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
at System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
at System.Web.HttpContext.InvokeCancellableCallback(WaitCallback callback, Object state)
at System.Web.UI.Page.LegacyAsyncPageBeginProcessRequest(HttpContext context, AsyncCallback callback, Object extraData)
at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)
Exception.Type: HttpException
Exception.Source: CompanyNameProductName.MvcCoreApp
Exception.Message: An error was reported by the data layer: 0Image not found1-10.1007_978-1-4471-4294-2_21-16
Exception.StackTrace: at CompanyName.CompanyNameProductName.imagedetail.Page_Load(Object sender, EventArgs e) in c:\DATA\Git\ProductName\CompanyNameProductNameMvc\imagedetail.aspx.cs:line 55
at System.Web.UI.Control.LoadRecursive()
at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
2013-06-12 13:45:07,913 [25] DEBUG StandardPage 100.100.100.100 pxtgn GET Initializing page 'default_aspx' for GET with query string:
2013-06-12 13:45:07,913 [25] ERROR StandardPage 100.100.100.100 pxtgn GET No User instance in session state. Check the log for signs that the session was started properly since a User object should aways exist in session state, setup via session start events in ASP.NET.
The last line shows the missing state condition. The pxtgn is the first 5 chars from the session ID. I hit a page for which I know the data layer will barf about the non-existent image ID. Then any page I hit next will cause my check to log the problem with the missing state. The check and state reference is in the code for the master page, so I can hit any page to see the problem. This also means the custom error page doesn't work - which is sort of how I came to find the bug.
I've now added a Session.Abandon() after the check and respond with a 500 to get me out of jail, but its quite an odd problem. I'm new to the codebase, and I think I've checked everywhere for the session being cleared or state being overwritten.
1 Thread is destroyed
2 Asynchronous environment
use httpcontext as a Parameter
not system.web.**.httpcontext
I have an IIS7 application that is using the .net 4.0 framework. The application pool has the rights (read/write/execute) on the folder of the application and has (select/read/connect) rights to the Database. IIS7 accept the aspx files and everything seems fine int eh settings however i am getting a 404 error when I am calling ti from outside of the server.
When I go in the server and call the http://localhost link, i get this error
Server Error in '/Phonebook/PhoneBook' Application.
--------------------------------------------------------------------------------
Object reference not set to an instance of an object.
Description: An unhanded 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.NullReferenceException: Object reference not set to an instance of an object.
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:
[NullReferenceException: Object reference not set to an instance of an object.]
PhoneBookApplication.DBUtils.Execute(SqlCommand command) +399
PhoneBookApplication._Default.FillddlSearch() +156
PhoneBookApplication._Default.Page_Load(Object sender, EventArgs e) +54
System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) +24
System.Web.UI.Control.LoadRecursive() +70
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +3047
--------------------------------------------------------------------------------
Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.0.30319.1
If I call a default-defaut.html file, it works, but not if I call the default-defaut.aspx. But in the daufault pages settings, both aspx and html are there.
Also, it seems to have something to do with the sql server, but I do not understand where to look to debug that
I have no idea what is doing this. Can someone help?
The method DBUtils.Execute seems to have an error. What do do you have on the page_load or any event before the page_load ?
The error is telling you exactly where the problem is:
Your line 399 of the DBUtils class has a bug:
PhoneBookApplication.DBUtils.Execute(SqlCommand command) +399
IIS is not the problem. If you are getting a 404 error is because you are not going to the correct URL.