C# - What Does The "ApplicaionDirectory" Membership Condition Mean In .NET Code Access Security
Apr 15, 2010
I am not sure about the semantic of "ApplicationDirectory" membership condition. I am trying to use it in the .NET Framework 2.0 configuration tool. The tool's explanation to it is as below:
The Application Directory membership condition is true for all assemblies in the same directory or in a child directory of the running application. Assemblies that meet this membership condition will be granted the permissions associated with this code group.All the other membership conditions such as strong name, hash, allow me to input some criterias, only the Application Directory has not. So how to use it?
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Apr 18, 2011
Is it possible for a VB.NET web application to check the user's Windows security group and behave differently accordingly?I'd like to disable a certain bit of functionality if the user does not belong to a specific windows group.I've tried using the Microsoft code at url... but get the error "Reference to a non-shared member requires an object reference" on the "irc = WindowsIdentity.Groups" line (I have imported all the required namespaces).Does anyone know if it's possible to get the user's security group?
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Dec 10, 2010
One of my application is taking a lot of time on Windows 7 compared to XP. What application basically does is it creates some PDF files reads the content and emits on a form and then deletes the files. I ran ANT profiler on both XP and Win 7, and i could notice some differences. On win 7 some CAS related methods are widely called and those method calls were missing on XP.. Is this the reason ? If someone has faced similar issues,
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Jul 14, 2008
I recently did a clean install of Windows 7 Home Premium and a reinstall of Visual Studio Professional 2008. I can't find the Framework Configuration anywhere. I have looked on the Start Menu and in the Control Panel and in Administrative tools. I need to find it so I can fully trust the network where my projects are located.
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May 2, 2009
This program is a small ADOX database with a single data entry Form. Originally written in VB 2005, it was copied into the VB 2008 Project folder. Opening the file in the IDE, it went through the Conversion process, nevertheless, because of the following error detailed below, the program will not accept any changes.
Error List: Warning 1 Unable to find manifest signing certificate in the certificate store. AppointmentsMissed (<the project's name) Under Security in the project's Properties Window these suggestions are made: Visual Studio was unable to determine the Code Access Security (CAS) permissions that are applicable to your project. The most likely cause is that your project references a strongly-named assembly that defines custom permissions, but that is not properly installed in the global assembly cache (GAC).
To correct this, try the following: 1. Ensure that any custom permissions defining assemblies referenced by your project have been properly installed to the GAC. If any of these assemblies have been rebuilt or have had their version numbers modified, you must install the new assemblies in the GAC. 2. Restart Visual Studio.
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Sep 10, 2009
I have some sorce codes on my comp. and i am employing a few s/w guys for coding at my office i would like to know what type of security softwares / hardware i should install so that the employees do not copy my source codes and i would like to give them access to net but not to attach my source code. i have searched on net ...but as i lack the basics of this i am asking the favour from all u experts. most of the search has sent me to the links for antivirus or antispyware....and like wise.
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Aug 13, 2010
Over the past few weeks I've been attempting to convert the readily available C# code for the Membership Provider etc whilst working with MS Access. I'm fairly experienced with VB unlike C# and have ran AccessMembershipProvider.cs, AccessConnectionHelper.cs and so on through 3 different converters. All of which have given a varying degree of errors, all of which I've fixed, either by ever so slightly re-writing the logic or in the Cryptographic case finding a working translation.
This evening I have fixed all of the errors from all of the now converted VB files (which I was pretty pleased about as you can imagine), I then created a simple login page to test this out, added a new user to the system and tried to login to find out I'm being told the username or password is wrong.Just to clarify, the converters all had an error or two or even more in some cases which I've bypassed but now I can't login - at all!!Finally I've written reams of code over the years and am really stumped on this one, has knowone actually successfully converted these files from C# to VB and actually got it working?? I'm not looking for someone to send me there hard work but I am almost at the point of not wanting to bother with it anymore and I just can't believe that it's not out there to download.
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Aug 14, 2011
wrote a program with Regex condition but it shows me Twice the first condition (<H1>Welcome to my Homepage</H1>)what is my problem?i enable multiline property of Textbox1
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
Dim l As New Regex("<(H1|H2)>.*?</(H1|H2)>")
[code].....
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Aug 30, 2010
How to use this code on security installation?
Public Function GetHDSerial() As String
Dim disk As New ManagementObject(_
"Win32_LogicalDisk.DeviceID=""C:""")
[CODE]...
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Apr 27, 2011
I have an ASP.Net portal like application with multiple roles. I have placed the subpages of that role in its own directory adding a web config with an authorization allowing only that role. I have css and javascript in the root directory that can not get access inside the protected role folders. How can I allow these folders css/js to have access to all roles. Sorry if this is easy question I have searched but I am rather new to ASP.NET
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Nov 23, 2011
I have a file accdb with password, now, i want to connect it and a project in VB 2010
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Dec 8, 2011
I am creating an application that will compile code at runtime and then execute that code. My worry is this: Someone might make a malicious script, that deletes files for example. Is there an option in VB.NET that prevents Kill statements and other file operations from executing? Maybe a kind of 'security' feature? If not, is there another approach that I should take?
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Apr 28, 2012
When two computers are connected through TCP, and one of them closes and breaks the connection, it throws error 10054 "Remote host forcibly closed the connection".I want to handle this error because I know it will happen more often than not with the application I'm building. In System.Net.Sockets.SocketException, there is an on the error code. But when I run the program, the exception that is being thrown is System.IO.IOException, and the GetType for IOException is the socket exception. I don't know how to handle the socket exception if it's not the root cause of the exception.
Here is the code for my Try Catch block:
For infiniteCounter = 1 To 2
infiniteCounter = 1
[code].....
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Mar 5, 2012
We are in the process of upgrading to WIN7 support and finding issues with the existing impersonant security model we previously used. So i am looking for suggestions before we hit the code.Application ABC.exe is running on a PC with restricted permissions
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Mar 31, 2012
I made a password protected program, but I wanted to make a reset password via security code. I made this, but it will not work for some reason. It seems like it'll work for the first time, but then when you try to set the password, it stills shows that the password is there and when I go into the reset password form and do it again, but then it say its incorrect.
[Code]...
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Feb 10, 2011
I have a form called LogIn.vb which has no errors. After log-in, it opens the MainForm.vb which IsMDIContainer property is set to true. From the MainMenu, it opens a child form called Assure_Benefits.vb So far no problem up to this point. When Assure_Benefits.vb loads, it displays 2 DataGridViews with datasourses from my 2 tables in my database.
There is still no problem with the loading. Now, to show the difference between different user types, I only allow the admin to edit the DataGrid. SO I set the readonly property to true when UserType = "user".
I have no problem doing that. My problem is I want to add some codes besides the readonly being set to true and false but other codes are not executed and the program does not display any errors at all. i tried to add messageboxes on the if and else conditions to try if added codes will work but even the messagebox does not appear though the codes next to it are properly executed.
When my Assure_Benefits.vb loads I call for the subroutine below.
Private Sub SetControlProperties()
If LogIn.UserType = "admin" Then
MessageBox.Show("Yes") 'This line is not executed
[CODE]...
I can't seem to understand why the first code is not executed when the next codes works fine.
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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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Apr 25, 2011
In my managed VB.NET code, I am able to write a file out to my desktop. Although, the statically referenced unmanaged code is unable to. I have hunted all over MSDN to find out how I can elevate the security permissions for this library method, but am unableto find anything.I declare the method as...Declare Sub WriteFile Lib "DataLog.dll" (ByVal fileName As String)Although, it throws an exception due to being forbidden from writing to the desktop. Is there an attribute
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Apr 7, 2009
I've got this program I'm working on in VisStudio2008. Basically, it accepts a password and executes an Access 2003 database using the Access 2003 runtime. I've got the thing looking up a password and all is good, but there's one problem those annoying Access 2003 and higher warnings about unsafe macros. Does anyone know a way to make sure those don't show up when the program starts?My client has a database that someone else wrote for her. She's not at a point where she could have it rewritten (believe me, I've tried to talk her into that). So I have to stay in Access but it's not very professional to have those warnings come up.
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Apr 3, 2012
I need some help in the creation of a program to generate a security code based on the current date. I need to create something that first multiplies the MMDDYY (ie X=MM * DD * YY) then also adds the MMDDYY then finds the remainder and then multiplies but a specified number. I would like to create a small program that sits in the system tray with this code displayed. The code will always need to be 6 characters, so I might need to pad it with zeros. It has been years since I took basic VB, and I am really rusty.
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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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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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Oct 13, 2010
I have a similar problem posted in the forum similar to this : started learning VB. I am not able to get my example code to work to access an Access database through automation. The author of my book suggested that I might not have the correct Jet 4.0 engine. The specs I have are: MSJet40.dll, Dated 7/14/2009, Prod Ver 4.00.9756.0.
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Jun 19, 2009
i need to set up membership for my first website, as i was told i have followed the following steps:1. website --> ASP .NET configuration2. select teh security tab If my admin tool works fine , then it should display the following
1. users - allows to create and manage users2. Role - enable roles3. Access rules - create and manage access rules But my security tab doesnt display those otpions instead it displays an error as:
Code:"There is a problem with your selected data store. This can be caused by an invalid server name or credentials, or by insufficient permission. It can also be caused by the role manager feature not being enabled. Click the button below to be redirected to a page where you can choose a new data store.
The following message may help in diagnosing the problem: An error occurred during the execution of the SQL file 'InstallCommon.sql'. The SQL error number is 1802 and the SqlException message is: CREATE DATABASE failed. Some file names listed could not be created. Check related errors. Cannot create file 'C:VBWEBSITESMEMBERSHIP1APP_DATAASPNETDB_TMP.MDF' because it already exists. Change the file path or the file name, and retry the operation. Creating the ASPNETDB_dbd9891837cf479eab2e5e8a5e483986 database... "
Then i followed it's instructions, clicked on choose datastore and configured the provider, according to the web admin tool the "single provider" passed the test.
Then i closed the adin tool and restarted it. but still the above error occurs. How can i fix this? PS: this happens even when i disable the firewall!
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Mar 17, 2011
I'm having issues using the membership.createuser method. My code is below, I get a null exception as runtime. [code]
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Dec 11, 2009
i am new in dot net nuke.i just found that there is open id logging option in dot net nuke.And so i did need user to register afresh in my dnn application.This is because i have another mvc application which i would like to be the openid provider for my dnn application.and am totally confused on how to go about that? Again,is it possible to tamper with dnn membership such that i use aspnetsqlmembership?
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Dec 12, 2009
(I work on VS 2005 with Access Database and C#)
I have my code as follows:
protected void Page_Load(object sender,
System.EventArgs e)
{
[Code]....
The logged-in 'UserId' and 'UserName' is getting displayed correctly, but now how do I use the string 'lmember' in my 'SELECT' statement when I need to display the related information from the table 'aspnet_Users' for the logged-in user? getting the following select statement:
SelectCommand="SELECT * FROM aspnet_Users WHERE (UserName= ????)"
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Jun 3, 2011
I wanna create sthg like the membership in asp.net to use it to manage winform VB.NET how can i deal with it without using active directory.I can create a database like the database generated in asp.net and create win form to create user ,create roles etc.
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Oct 19, 2009
This is the Membership API in .NET 2.0. Suddenly it stopped working on me. I've stripped it to the basics. I get no response when I try to create a user. It goes through the code with no error, but nothing happens. Here is the code in the aspx:[code]
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Feb 23, 2010
I'm using two membership providers.I declared a following statement Dim allUsers As MembershipUserCollection=Membership.Providers("Membership RoleManager" ).GetAllUsers Then, it gave me this error message.
[code]...
This statment Dim pageSize As Integer = GetTotalNumberOfUser() returns the total counted record, it's already round trip to database, just to get the total number of users, because I need to provide the pageSize param value.
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