System.Security.SecurityException And Calling Word From Infopath?
Jan 13, 2012
I am trying trite code that will copy information from an infopath document to a word document that is being used as a template containing only a header and footer. The only reason for the code is becausthe footer (not optional) is too long to be handled by Infopath (which has a 255 character limit) and word can hold the full footer. Following the guidance on
Public Sub CTRL1_5_Clicked(ByVal sender As Object, ByVal e As ClickedEventArgs)
Dim appWord As Word.Application
Dim wrdDoc As Word.Document
[code].....
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Jul 27, 2010
I am getting the following error message when I try to call this program from a shared drive on our network;
System.Security.SecurityException: System.Security.Permissions.SecurityPermission
at EMAILVB.EmialVB.EmailVB_Load(Object sender, EventArgs e)
[code]....
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Mar 31, 2009
I have made an simple application (.exe). When i run this program local on my machine it works fine. When i run it from an server i get the system.security.securityexception message.
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Jan 11, 2010
Trying to read key "HKLMSOFTWAREPoliciesMicrosoftWindowsWindowsU pdateAU" value "AUOptions" and get the following : A first chance exception of type 'System.Security.SecurityException' occurred in mscorlib.dll Error occurs in ReadRegistry key SOFTWAREPoliciesMicrosoftWindowsWindowsUpdate AU : Requested registry access is not allowed. This occurs in my vb.net application when application is run under an account called OPER in the USERS group. The application :
1/is on my PC's hard drive, its not a web app or on a network share
2/is launched via a desktop click
3/ has a manifest specifying executionlevel "AsInvoker"
It does not occur when the Application is run as an Administrator. It does not occur if I read the value with a non .NET program when logged in as OPER whch makes me think it is a .NET problem not a registry permissions problem. Examining "Effective Permissions" shows that my OPER login has query value permission.I need the application to be able to read the key like the non .NET application while running at USERS level.
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Jan 20, 2012
I am trying to extract a hyperlink using the open file dialog with no success.System.NullReferenceExceptionObject reference not set to an instance of an object.
at DPR_Library_5.FormCode.CTRL177_5_Clicked(Object sender, ClickedEventArgs e) in \srv-na01user
epInfoPathProjectsDPR_Library_Final_1_GetFileFormCode.vb:line 76
[code]....
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Oct 15, 2010
Through COM, one can potentially gain absolute control over a target system. For example: using javascript's ActiveXObject object in IE, one can create certain objects which were designed to have direct access or interaction with system properties and files.One would think common sense dictates users disable ActiveX features in IE immediately after installing the browser to ensure their system is protected while surfing the net, or at least paying close attention to which websites they permit. But, I doubt many average PC users know how or why to do this, or just get tired of mirco-managing it over time. I think any PC user or admin my COM class caters to would greatly appreciate not having to deal with that. Thankfully it looks like IE versions come packaged with ActiveX disabled by default nowadays.
I've built a very versatile COM class library in VB. I didn't intend for it to be callable from any website, but that feature is just part of the COM platform. I'd like to prevent the library from being called from IE unless the website is on a white-listed domain to proactively protect the user (and ultimately their entire intranet) from harm from malicious websites. What would be the best method in VB.Net to tell which application called my DLL, to be able to tell if it was called from any command or process originating from IE? And, what domain called my dll? System.Environment.GetCommandLineArgs()(0) gets me the calling application path. With this info, I can compare it to a black/white-list of applications.
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Nov 4, 2010
im making a md5 cryptology for a program, it work in everyform exept this one..
Imports System.Net.Mail
Imports System.Net.FtpWebRequest
Imports System.Net
[code]....
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Dec 20, 2011
When I try to call a [Java] web service from .NET, I am getting what appears to be a security credentials issue. CWWSS5509E: A security token whose type is [http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-username-token-profile-1.0#UsernameToken] is required.Is it even picking up the credentials that I am trying to pass? At this point, I just want to make contact with the web service and get access. In my example, ServiceReference1 is a generated Web proxy class.
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
Dim myLocateProfileBySourceSystemId As New ServiceReference1.locateProfileBySourceSystemId
[code].....
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Nov 9, 2009
i am getting the error "System.security.permissions.securitypermission" when running the VB application in another machine. i have put the .exe file in the common path and i ran it my machine and it is working fine, but when i tried to run it in the different machine i am getting the error. Can anyone help me out in fixing this error.
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Aug 26, 2009
I realize AesCryptoServiceProvider is part of .NET framework 3.5. I do have 3.5 installed. However, (I can't believe I don't know this), how can I utilized Framework 3.5 so I can access the AesCryptoServiceProvider? Currently, it points to 2.0.
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Feb 16, 2010
I'm working on a basic file encryption by using the Imports System.Security.Cryptography.I was thinking of putting a password as a final security measure.Would i have to store the password inside the file or how will this work?
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Jul 8, 2010
I'm working with a vb.net 2005 project that i converted from vb 6.0 last year. It's working fine in windows xp, but on vista and windows 7 i get an error saying 'Insufficient security permissions to set the system time.' Can you think of any way to replicate this error on windows xp? I'm trying to get a windows 7 box setup at work but I was wondering if there was anything I could try with xp in the meantime.
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Jun 10, 2011
Counting days independent of system calander ?
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Jun 10, 2011
I want to add a feature to my trial version of the application. After first activation, I want to make it limited to 90 days. But I am concerned about user's changing the date of system hence deceiving my application. Is there any possibility to make it fool proof in a way that even if user takes the calender back, application expires after 90 days of first activation? First activation date has been saved in the database.
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Mar 23, 2009
I've written 'File_Reformat_Code.vb' using the "Console Application" template. The program uses SQL to read an Oracle database and then generates fixed-length records for an outside vendor.
It runs fine on my PC and on a file server that's running Windows 2000. But, it gives the following error when I try to run it on a server that's using a Novell operating system. Are their security settings in my program that need to be changed, and, if so, how would I do it? Likewise, for possible settings on the Novell box?
CODE:
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Jul 7, 2010
For my applications I use the following class:
Imports System.Security.Cryptography
Imports System.IO
Imports System.Text
'SymmCrypto is a wrapper of System.Security.Cryptography.SymmetricAlgorithm
[code]....
Most of the time this works as it should, but sometimes it encodes a string and the gives an error on decoding it. The error message is: Invalid length for a Base-64 char array.
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Jan 4, 2012
System.Security.Cryptography.CryptographicException: Length of the data to decrypt is invalid.
My Code:
' Decrypt textfile with Rijndael encryption
Public
[code].....
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Oct 20, 2009
I am trying to mimic the results of some C code that uses the OpenSSL library using the system.security.crytography library in the .net 3.5 world, and I can't seem to get it right. part of the issue is my understanding of crytography in general.
Here's what is supposed to happen:
I send a request for authentication to a device.It returns a challenge digest, which I then need to sign with a known key and return The device returns a "success" or "Fail" message.I have the following code snippet that I am trying to "copy":
[Code]...
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Sep 4, 2009
we are making our program in other computer it runs, without errors, but then when we transfer the program to another computer it has an error that says
An error occurred creating the form. See Exception.InnerException for details.The error is: Request for the permission of type
'System.Security.Permissions.FileIOPermission, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed.
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Apr 10, 2012
i wanna generate an HTPASSWD file for my Server to secure a directory. For Crypt im using DesEncrypt Method , here is my Code :
[Code]...
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Sep 8, 2010
I wrote a custom assembly for SSRS that returns a jpeg for the background image in a textbox on the report.I followed all instructions on msdn in regards to security but i still receive the same error.
Below is my config information
<pre lang="x-xml"><PermissionSetclass="NamedPermissionSet"
version="1"
name="Barcode">
[code].....
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Apr 13, 2011
Below is the code i am using to read and update the system environmental variable. This code is working fine when i am executing .exe on Local Machine. I am getting problem when i try to access this .exe from Browser(using citrix i am doing this) and invoke. when i invoke from browser its going to catch block and displaying MsgBox("Unable to Create LDAP Key.
[Code]...
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Apr 1, 2011
I am trying to find the time-outs the user has set for the PC similar in function to the command line:
powercfg /q SCHEME_CURRENT SUB_SLEEP but I want to do something a bit more elegant than firing off a command and parsing the values out of the captured output. I've managed to source a number of element examples from the net and cobble parts together into a program.
I've got a fair way but am now stuck on the call to powrprof.dll - PowerEnumerate function. I've checked it on Microsoft's site and my call seems to be okay yet it still fails with 'System.AccessViolationException was unhandled'
[Code]...
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Jul 9, 2010
I Have just been watching a video on throwing Exceptions. Are you supposed to throw System.Exceptions from within your custom classes. to the calling code, Which other way can they communicate. I have read in several places it is bad practice to throw SystemExeptions.
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Apr 12, 2010
I use VB to get data through my form. I have some optional fields in my form and I have a problem with the following code:
MsgBox(myXPathNavigator.SelectSingleNode( _
"/my:Status/my:Questions/my:Questions1", Me.NamespaceManager _
).IsNode.ToString)
When the optional field 'Questions1' is inserted into the form I get the value 'true' by the IsNode() function.
If the field it is not inserted I have an exception stating that the reference is not correct (and it is indeed true). Is there a way to verify about a node, whether it is present or not in my form?
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May 12, 2010
I am new to Office programming. I am trying to automate sending Infopath forms through Outlook. The form must be displayed in the body of the e-mail, which the customer can fill in and send it back. I am able to do this manually by selecting File->New->Choose Infopath Form through Outlook.
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Mar 15, 2009
We just spent 300 man-hours fixing a buggy application in the field. It all came down to calling Application.DoEvents (re-entrancy problem).This was not caught in design reviews, code reviews.The code was inserted two years ago with the first version; the application was always "flaky" but recent changes exposed the re-entrancy problems to a greater degree. This incident is the second time in our organization that Application.DoEvents caused failures and multi-man hours of debugging.It was discovered in this case by simply noticing the call,buried way down in a complex event handler for an asynchronous task.What do you suggest to prevent this issue from happening again:
Add checkin gates to source control?
Developer training?
Code Analysis rules (why is this not already a built-in rule?)
How to I enforce a coding practice?
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Jan 28, 2010
I have problem in calling DLL file in VB.Net that I had Created it in C++... it give me this error message: "An unhandled exception of type 'System.EntryPointNotFoundException' occurred in test_dll_1.exe. Additional information: Unable to find an entry point named 'add_1' in DLL 't1.dll'."
This is my code in C++ (header file)
[CODE]............
The one in the main
#include "header_1.h"
double add_1(double a, double b){
return (a+b);
[CODE].....................
This code only for creating dll and I did created it correctly and i had tested it in c++ and it did works.... but in the Vb.net I had no luck with it...This is the code that I wrote it in the VB.net
Imports System.Runtime.InteropServices
Public Class Form1
<DllImport("t1.dll")> Public Shared Function add_1(ByVal a1 As Double, ByVal a2 As Double) As Double
End Function
[CODE].....................
And, I did put the .dll file in the bin folder, but also with no luck...
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Mar 18, 2009
Does anyone know how to call an InfoPath form to open from VB? The form is located on a webserver so the path would be something similar to[url]...
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Aug 11, 2009
I have an Infopath form that retrieves data from a datasource, then populates a repeating table with a dynamic number of rows depending on employid. Once the data is populated, a "user" can enter numbers, times, etc. That part works fine. Now, what I would like to do is submit the data to a sql database. I just can't figure out how to navigate through each record of the repeating table. I have tried the following code, but have been unsuccessful. I can not get the XpathNodeIterator to work on the secondary datasource.
Dim domNav As XPathNavigator = Me.DataSources("getEmpHourlyPaycodes").CreateNavigator()
Dim rows As XPathNodeIterator = domNav.Select("/my:myFields/my:ReturnedData")
While rows.MoveNext()
Dim field1 As String = rows.Current.SelectSingleNode( _
"my:descriptn", NamespaceManager).Value
' Submit code will go here.
End While
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