Web Method Giving A HTTP401 Not Authorized Error
May 10, 2012
I use web methods in a couple of places in the intranet site im working on and they work fine, however one page is constantly throwing a HTTP 401 error every time I try access the web method.
Im not sure how to aproach this issue, I have tried commenting everything out of the web method, and still get the 401 error, even a basic connect to the database just doing SELECT 1 does not show up when I watch the DB with profiler.
My web.config is the same for all pages in the intranet and I cannot see any differences in my ASP.Net page compared to pages where web methods work.[code]...
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Oct 30, 2009
This code is not giving the msgbox value! Is the GetValue method incorrect?
[Code]...
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Jan 18, 2012
I have following function:
in a.aspx.vb page:
If a = True Then
'do something
Else
'i want to show a not authorized page here
End If
Will i have to create a new page and give the url under else to show not authorized page? Or is there any other pre-built way to do this in .net 4.0?
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Jun 29, 2009
I am trying to connect to a remote machine through a vb.net application and want to retrieve the system information using WMI Classes. But the source line (scope.Connect()) as below generates an error "Access Denied HRESULT...." [code]
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Oct 26, 2006
I just finished putting the first 6 datagrid controls on my form and i went to go test it and got this build error: Error 4 Value of type 'String' cannot be converted to 'System. Windows.Forms.DataGridViewTextBoxColumn'.C:SoftwareForm1.vb 1425 19..When the line generating the error is this Me.Name = "Form1".where it has the "Form1" portion underlined in blue.This is a weird error because that line was made by the IDE to say the name of the form and has nothing to do with 'System.Windows.Forms.DataGridViewTextBoxColumn'.I tried saving my progress and restarting the IDE with no luck..Now I cannot even access the form in designer mode,One or more errors encountered while loading the designer. The errors are listed below. Some errors can be fixed by rebuilding your project, while others may require code changes.The designer cannot process the code at line 1424: Me.Name = "Form1" The code within the method 'InitializeComponent' is generated by the designer and should not be manually modified.
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Dec 10, 2011
It's saying I cant access this object in my class. Why? I'm pretty sure Ive used this method several times before. Below is some bits of code to figure this out. Object reference not set to an instance of an object."
[Code]...
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Jun 8, 2012
When I am scrolling datagrid after selecting one row I am getting error as "An unhandled exception of type 'System.StackOverflowException' occurred in System.Windows.Forms.dll" on line :
MyBase.Edit(source, rowNum, bounds, [readOnly], instantText, cellIsVisible)
Whole code is given below :
[Code].....
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May 17, 2012
I am trying to check to see if a value in a textbox is already in a drop down list. If it is, I will simply write to a label. If the textbox value is not in the dropdown list then I want it to write to the dropdownlist.
I am getting the following error Collection was modified; enumeration operation may not execute
HTML
Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click
For Each value In DropDownList1.Items
[Code]....
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Nov 11, 2009
I've written a new DAL and BLL, but when I try to create an instance of my class, I get an Object Reference error, is there anything particular I should be looking for? I am fairly new to this concept?
Call is such:Protected Sub btnSignin_Click(ByVal sender As Object, ByVal e As System.Web.UI.ImageClickEventArgs) Handles btnSignin.Click Dim l As New Log()l.Log = "Attempted staff login with username [" & txtUsername.Text & "] and password [" & txtPassword.Text & "]"
[Code]...
Intellisense highlights no problems and if I Build the web site in VS I get a few warnings about schema information in the web.config (unrelated), otherwise no problem.
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Jun 29, 2009
Trying to run the following code but am receiving an string to integer error. Basically, I am running a report through code and trying to retrieve a number from a line of code by removing the line description and spaces. Having problems trying to figure out how to do that.
Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim strURL As String
[Code].....
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Aug 18, 2009
I have a show button.The user will select a data from the dropdown list of the combo and on clicking the show button the corresponding data will be fetched from the database and will be shown in the corresponding fields.So I did this
Private Sub Show_Btn_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Show_Btn.Click
Using connection As New OleDbConnection("Provider=Microsoft.Jet.Oledb.4.0;Data Source=BankAccount.mdb")
connection.Open()
Dim command As New OleDbCommand("Select * from BankAccount", connection)
Dim reader As OleDbDataReader = command.ExecuteReader()
[Code]...
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Feb 18, 2011
Private Sub btnUpdate_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnUpdate.Click
Me.Personal1TableAdapter1.Update(Me.HRDataSet4)
Dim myConnection As OleDbConnection
Dim myCommand As OleDbCommand
[Code] .....
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Jan 21, 2011
I've developed a windows service that connects to a database and executes a Stored Procedure when running in debug mode I get the following message: "ContextSwitchDeadlock was detectedMessage: The CLR has been unable to transition from COM context 0x1ffc20 to COM context 0x1ffd90 for 60 seconds. The thread that owns the destinationcontext/apartment is most likely either doing a non pumping wait or processing a very long running operation without pumping Windows messages. This situation generally has a negative performance impact and may even lead to the application becoming non responsive or memory usage accumulating continually over time. To avoid this problem, all single threaded apartment (STA) threads should use pumping wait primitives (such as CoWaitForMultipleHandles) and routinely pump messages during long running operations."
vb
'Explicitly imports a namespace into a page, making all classes and interfaces of the imported namespace available to the page.
[code]....
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Mar 24, 2009
I'm trying to trigger an animation declared in the window's XAML file from the window's vb code when an event is raised (calling a function), like a window's "loaded" event.
Here's how I declare the animation (as a storyboard):
Dim StartAnimation As Storyboard = DirectCast(FindName("ServiceOn"), Storyboard)
Dim StopAnimation As Storyboard = DirectCast(FindName("ServiceOff"), Storyboard)
And here's the code for the function that is failing:
[Code]...
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Dec 7, 2009
I am getting the following error while browsing my asp.net page deployed in IIS..I am using active directory data retrieval in my website and credentials to the active directory is stored in the web.config file You are not authorized to view this page You do not have permission to view this directory or page using the credentials that you supplied. Please try the following:Contact the Web site administrator if you believe you should be able to view this directory or page. Click the Refresh button to try again with different credentials. HTTP Error 401.1 - Unauthorized: Access is denied due to invalid credentials.Go to Microsoft Product Support Services and perform a title search for the words HTTP and 401. Open IIS Help, which is accessible in IIS Manager (inetmgr), and search for topics titled Authentication, Access Control, and About Custom Error Messages.
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Nov 23, 2010
I have a device with an embedded webserver that accepts URL-based commands and queries. The device provides a user-privilege schema, so I have administrative accounts, operator accounts, and plain user accounts. Certain commands and queries require authorization via username and password to establish the privilege level available.
[Code]...
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Aug 19, 2009
I've developed a small HR program that connects to the SQL database which is on the local PC. I've created an ODBC connection to connect to this server and the program works fine. I've used VB 2008 Express edition to develop.
My concern is now I want to install this EXE on a server. ON the server, I've created the same databses and successfully created an ODBC connection on the server as well. Also created one shared folder. I copied all my EXEs and DLLS on to this folder. On the server I was able to execute the program without any problem.
From a remote client, I opened this shared folder and try to execute and it was giving me an ODBC related error, basically it was not able to detect the SQL connection.What I want to achieve is to have one EXE. The program did not throw any other errors.
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Sep 12, 2011
Public Shared Function GetData(ByVal id As Integer) As List(Of SomeClass)
Dim command As New OracleCommand
Dim conn As New OracleConnection(WebConfigurationManager.ConnectionStrings("ConnectionString").ToString)
Dim param As New OracleParameter
[code]....
This function is giving an ORA-00911 invalid character error. I have other methods of the same style and these are functioning correctly.
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Oct 5, 2009
I am using combobox to populate values from a table, 'Suppliers'. I put this combobox in a form wherein the order details are filled up. This column 'Supplier' is a Foreign Key and set to NotNull in the order detail table. Selecting the first available entry on the combobox gives error 'SupplierID cant be Null' . Selecting the 2nd value is OK, first choosing 2nd and coming back to 1 is also OK. This error comes up when trying to update the database.Even with the first value, the combobox is having a text. I would like to know why the error.
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May 23, 2012
Trying to convert my home app from vb6 to .net but have a problem. I am using the code in the tut by Paul Kimmel but it is returning Err.LastDllError = 126. I am using this code as posted on Win7 and VS2010. KeyboardHandle is retuning 0 but Im not sure which part of it is the problem. There is a lot of new stuff there for me.
CODE:
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May 10, 2012
Everything was working just fine...then one time running the debugger and I'm given a 401.2 error from IIS Express 7.5. I created a new project and tested - worked fine. I ensured the web.config and other project settings where identical - still getting the error in the original project!
[Code]...
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Dec 1, 2009
I am working in vb express 2008. I got some sample code from the site www.vbhelper.com and tried to implement it as it is. Debugging of the code gave following errors:Error 1 'Protected Overrides Sub Dispose(disposing As Boolean)' has multiple definitions with identical signatures.
C:Documents and SettingsDaLicaRestaurantLocal SettingsApplication DataTemporary ProjectsPrintingForm1.Designer.vb 7 29 Printing
[code]...
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Feb 18, 2010
I am having trouble while installing Visual Basic 6.0 . Setup gives message
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Jun 5, 2012
Why does my VB.Net Project disappear instead of giving an error message?This only started happening recently, but when debugging with Visual Studios instead of getting errors, the program just closes as though the stop button was pressed. This doesn't happen for all error types but it consistently happens if there is some sort of casting error. This is an overly simplified example, but the lines below would cause a program to vanish as soon as they run. Dim i As Integer i = "A" One other interesting part of this is that if that was in a try catch block the error would be caught instead of closing the program.I'm in an office setting so I've been able to test a number of configurations and have found that this problem only affects Windows XP PCs, but not Windows 7. And it consistently happens with Visual Studios 2010 Professional and Ultimate, Visual Studios 2008. Besides that we apparently we all need Windows 7.
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Jan 25, 2012
My problem is I need to develop a sales application to be used on 5 computers. The database needs to stay on a main computer and other computers should connect with that over LAN.I donot want to use SQL Server as it is too complicated to give permissions, setting up firewalls etc. for the end user.Is that any type of database that could serve my purpose, without giving sharing violation error?
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Jul 13, 2011
Why does my the declaration of my string in the code result in the following error? Is there a workaround?
Code:
<script runat="server">
Protected Sub form1_Load(sender As Object, e As System.EventArgs)
Dim x As String = "</script>"
[code]....
Error: Statement cannot appear within a method body. End of method assumed.
Note: The following page did not fix my issue and instead resulted in the string </script> being output in my page. ( VB.NET hates </script> tag in string literal )
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Nov 30, 2009
I've one VB.net 1.1 based windows app. I recently added the app.config files. In code it works fine. But, when I compile the application, VS 2003 doesn't generate the appname.exe.config.(I read on google) I manually copied the app.config file to the Release folder. But the code is giving error that the file doesn't exists.
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Apr 20, 2012
Alone form proxy.vb is working without problem, but when I copy it and include to my project I getting always:
Exception:Thrown: "Index and count must refer to a location within the buffer." (System.ArgumentOutOfRangeException)
[code].....
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Jan 16, 2012
I have an ArgumentException was unhandled message: Cannot add or insert the item '1' in more than one place. You must first remove it from its current location or close it. Parameter name item. Note: Have 2 listboxes 4 textboxes double click listbox2 and it fills in the four texboxes (now it needs to put it back into listbox2 in the same place it came from but crashes. I marked the area and underlined where the error message was coming up. So double click a selection in listview2 (fills 4 textboxes) then double click textbox2 (should return text data back to listview2 in same spot) but crashes. See code below.
[Code]...
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Dec 19, 2009
I have some programming background in VB4,VB6, and some assembler, also I was a very big fan on of Qbasic.Programed 100's PIC micro in assembler and basic.
I know this list of experience will put a big smile of many readers face, that's what I have.Trying to learn VB2008 Express, I find everything I know is out of the window, nothing works the way it used to be.Cant find solution for the simplest task, like read/write a file in binary, read/write serial port.I have some e-books to read, all talks about thinks are actualy works and I could figure out myself or other case I cant get around what era they talking about.I'm cursing right now, ho would you teach a old dog for new trick's.English is my second language, not always understand all the terms and other lings what books and online sources use.I have not wrote any code for Windows for at least 5-6 years, but did wrote may program for Micro controllers in Assembler and Basic.
For example I found this code to demonstrate how to create a file, write in binary then read it back.It does not work, cant figure it out why, help is useless, stops at "fs.Position = 0", the function of this line make sense, but why errors out here.Debugger give me "Cannot access a closed file.", I don't see any line closing the file, is everything will be this difficult.Not to mention this is pose to be a working example from a book.This is the way I used to open a file.[code]...
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