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Hi Colin Angus Mackay,
I think DenClancy wants that a file ( even if a simple text file ) must not be opened without a particular application. Is this possible ? What if an Admin user tries to open this file ?
Actually I wanted to restrict access to some files, even if the files are simple text files (even to admin users). I heard about something called Access Control List. Is it applicable here ? I dont know the details of ACL. If possible, please reply in details.
Thanks.
"A good programmer is someone who looks both ways before crossing a one-way street." -- Doug Linder
coolestCoder
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coolestCoder wrote: Is this possible ?
As I pointed out, the application can deny others the ability to do anything but read the file. Or it can take exclusive control over the file too. See the previous links to FileShare.
coolestCoder wrote: What if an Admin user tries to open this file ?
Yes, even an administrator - Try it with a SQL Server database file. You won't be able modify it regardless of who you are logged in as because the SQL Server process has control over it. Not even someone logged on as the same user as SQL Server can access the file.
coolestCoder wrote: ctually I wanted to restrict access to some files, even if the files are simple text files (even to admin users).
You can change the permissions on a file as you need it. I'm not sure if you can lock an admin out though. If it is possible then it would only be a temporary situation as the admin would have the ability to grant themselves access again.
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Hi!
I think the real question is how to permanently lock a file without an application that has to keep the file handle open all the time.
Sure you can set FileShare to None, but the moment your application ends anyone can access the file again.
The original poster wanted a way to deny access to a file for everybody even after the application has finished.
Regards,
mav
--
Black holes are the places where God divided by 0...
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I think you could achieve something similar if you can create a separate user with a random password only your application knows and have your application set the access rights for the file so that only this particular user has access rights.
But an administrator could take ownership of the file and thus modify the access rights anyway...
Regards,
mav
--
Black holes are the places where God divided by 0...
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I have develop windows application which connect in device and read sdf file, but when I run this app in another PC I get error :
See the end of this message for details on invoking
just-in-time (JIT) debugging instead of this dialog box.
.
.
.
.
how can I solve this problem, and make application run properly in anther PC-se.
Regards.
I Love SQL
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Blue_Boy wrote: See the end of this message for details on invoking
just-in-time (JIT) debugging
So, what did it tell you at the end of the message?
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I got this error message
See the end of this message for details on invoking
just-in-time (JIT) debugging instead of this dialog box.
************** Exception Text **************
System.Security.SecurityException: That assembly does not allow partially trusted callers.
at System.Security.CodeAccessSecurityEngine.ThrowSecurityException(Assembly asm, PermissionSet granted, PermissionSet refused, RuntimeMethodHandle rmh, SecurityAction action, Object demand, IPermission permThatFailed)
at SyncDSF.Form1.button1_Click(Object sender, EventArgs e)
at System.Windows.Forms.Control.OnClick(EventArgs e)
at System.Windows.Forms.Button.OnClick(EventArgs e)
at System.Windows.Forms.Button.OnMouseUp(MouseEventArgs mevent)
at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
at System.Windows.Forms.Control.WndProc(Message& m)
at System.Windows.Forms.ButtonBase.WndProc(Message& m)
at System.Windows.Forms.Button.WndProc(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
The action that failed was:
LinkDemand
The Zone of the assembly that failed was:
Intranet
************** Loaded Assemblies **************
mscorlib
Assembly Version: 2.0.0.0
Win32 Version: 2.0.50727.42 (RTM.050727-4200)
CodeBase: file:///C:/WINDOWS/Microsoft.NET/Framework/v2.0.50727/mscorlib.dll
----------------------------------------
System.Windows.Forms
Assembly Version: 2.0.0.0
Win32 Version: 2.0.50727.42 (RTM.050727-4200)
CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System.Windows.Forms/2.0.0.0__b77a5c561934e089/System.Windows.Forms.dll
----------------------------------------
System
Assembly Version: 2.0.0.0
Win32 Version: 2.0.50727.42 (RTM.050727-4200)
CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System/2.0.0.0__b77a5c561934e089/System.dll
----------------------------------------
System.Drawing
Assembly Version: 2.0.0.0
Win32 Version: 2.0.50727.42 (RTM.050727-4200)
CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System.Drawing/2.0.0.0__b03f5f7f11d50a3a/System.Drawing.dll
----------------------------------------
System.Configuration
Assembly Version: 2.0.0.0
Win32 Version: 2.0.50727.42 (RTM.050727-4200)
CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System.Configuration/2.0.0.0__b03f5f7f11d50a3a/System.Configuration.dll
----------------------------------------
System.Xml
Assembly Version: 2.0.0.0
Win32 Version: 2.0.50727.42 (RTM.050727-4200)
CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System.Xml/2.0.0.0__b77a5c561934e089/System.Xml.dll
----------------------------------------
System.Data.SqlServerCe
Assembly Version: 9.0.242.0
Win32 Version: 3.0.5300.0
CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System.Data.SqlServerCe/9.0.242.0__89845dcd8080cc91/System.Data.SqlServerCe.dll
----------------------------------------
System.Data
Assembly Version: 2.0.0.0
Win32 Version: 2.0.50727.42 (RTM.050727-4200)
CodeBase: file:///C:/WINDOWS/assembly/GAC_32/System.Data/2.0.0.0__b77a5c561934e089/System.Data.dll
----------------------------------------
WindowsBase
Assembly Version: 3.0.0.0
Win32 Version: 3.0.6920.0 (vista_rtm_wcp.061020-1904)
CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/WindowsBase/3.0.0.0__31bf3856ad364e35/WindowsBase.dll
----------------------------------------
************** JIT Debugging **************
To enable just-in-time (JIT) debugging, the .config file for this
application or computer (machine.config) must have the
jitDebugging value set in the system.windows.forms section.
The application must also be compiled with debugging
enabled.
For example:
<configuration>
<system.windows.forms jitdebugging="true">
When JIT debugging is enabled, any unhandled exception
will be sent to the JIT debugger registered on the computer
rather than be handled by this dialog box.
I Love SQL
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Blue_Boy wrote: ************** JIT Debugging **************
To enable just-in-time (JIT) debugging, the .config file for this
application or computer (machine.config) must have the
jitDebugging value set in the system.windows.forms section.
The application must also be compiled with debugging
enabled.
For example:
When JIT debugging is enabled, any unhandled exception
will be sent to the JIT debugger registered on the computer
rather than be handled by this dialog box.
And have you followed these instructions?
Following these instructions will help you track the problem you are having, you can then fix it.
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thanks, but application works on my PC in others not (in others i have installed .NET Framework 2.0), do I have to install anything else?
I Love SQL
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Blue_Boy wrote: but application works on my PC in others not
There must be some difference between your PC and the others. In order to track that difference down you need a debugger. The debugger isn't necessary to run the application, it is just necessary to find out what went wrong. Then you can tell if there is something missing or not.
On the target machine you can install the .NET 2.0 SDK. That comes with a basic debugger. If your application has been built as a debug built it will help you track down the problem.
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hi to you
i make a win app
i want create access for any user that create in my database
for ex if i have a limit user i want set it access to can go to spatioal win form and sccess to limit report and not spitioal file or folder
thanks
suni
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No can understand What are you saying ? What you want please be specific
Thanks and Regards
Sandeep
If you want something you never had,
do something you have never done!
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i need code for upload an xl file which has size 100mb. so how can i approach. using file laoder it si not possible as it is too big. so by FTP it possible i think ...but i don't know the code to use in c#
so plzzzzzzzzz any one can gve me response as early as possible
Suresh.R
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you can use below component for ftp manage 
http://www.codeproject.com/cs/internet/ftplibrary.asp
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sooreeagt wrote: help me
This is a useless subject line. Everyone asking questions on this forum is looking for help.
A better subject would be "Need assistance uploading 100mb XML file"
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Hello all
how we can draw the elements of an array on the picturebox with respect to the time in the Timer such that every tick of the timer the string elements (which point to the x-position of the mouse ) appears on the picturebox as a dot ; the y-axis is the the x-position and the x-axis is the time of the timer.
thank you
ahmad al-omar
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Hi all,
i want to update the <lasers>
<laser id="Laser1">
<properties>
<tabular> 's <edit property = "true" if its false,
i am using checkedlistbox property to where these values come from XML FILES,
When user checkes or unchecks the checked box, i'll toggle the values depending upon the selection,
please help me
I've posted the xmi file( which i am using,) BELOW,, plz look at it.
<?xml version="1.0" encoding="utf-8" ?>
<lasers>
<laser id="Laser1">
<properties>
<gauge>
<property name="Output1" min="0" max="100" optimalval="50" currval="0"></property>
<property name="Output2" min="0" max="100" optimalval="50" currval="0"></property>
<property name="Output3" min="0" max="100" optimalval="50" currval="0"></property>
<property name="Output4" min="0" max="100" optimalval="50" currval="0"></property>
<property name="Output5" min="0" max="100" optimalval="50" currval="0"></property>
<property name="Output6" min="0" max="100" optimalval="50" currval="0"></property>
</gauge>
<tabular>
<property name="temperature1" currval="12" edit="true" selected="true"></property>
<property name="temperature2" currval="56" edit="true" selected="false"></property>
<property name="temperature3" currval="36" edit="true" selected="false"></property>
<property name="temperature4" currval="67" edit="true" selected="true"></property>
<property name="temperature5" currval="37" edit="true" selected="true" ></property>
<property name="temperature6" currval="87" edit="false" selected="true" ></property>
<property name="temperature7" currval="89" edit="true" selected="true" ></property>
<property name="temperature8" currval="23" edit="true" selected="false" ></property>
<property name="temperature9" currval="78" edit="false" selected="false"></property>
<property name="temperature10" currval="81" edit="true" selected="true" ></property>
<property name="temperature6" currval="87" edit="false" selected="true" ></property>
<property name="temperature7" currval="89" edit="true" selected="true" ></property>
<property name="temperature8" currval="23" edit="true" selected="false" ></property>
<property name="temperature9" currval="78" edit="false" selected="false"></property>
<property name="Poweroutput" currval="81" edit="true" selected="true" ></property>
</tabular>
</properties>
</laser>
<laser id="Laser2">
<properties>
<gauge>
<property name="Output1" min="0" max="100" optimalval="50" currval="0"></property>
<property name="Output2" min="0" max="100" optimalval="50" currval="0"></property>
<property name="Output3" min="0" max="100" optimalval="50" currval="0"></property>
<property name="Output4" min="0" max="100" optimalval="50" currval="0"></property>
<property name="Output5" min="0" max="100" optimalval="50" currval="0"></property>
<property name="Output6" min="0" max="100" optimalval="50" currval="0"></property>
</gauge>
<tabular>
<property name="temperature11" currval="0" edit="true" selected="true"></property>
<property name="temperature22" currval="0" edit="false" selected="false"></property>
<property name="temperature33" currval="0" edit="true" selected="false"></property>
<property name="temperature44" currval="0" edit="false" selected="false"></property>
<property name="temperature55" currval="0" edit="true" selected="true"></property>
</tabular>
</properties>
</laser>
</lasers>
prashanth,
s/w Engineer,
Syfnosys.
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Load the XML file into a XmlDocument instance, use the SelectSingleNode in conjunction with a proper Xpath expression to select the attribute whose value has to be changed and finally change the value. Take a look at the documentation of the mentioned class and method. It contains examples and continuative links that should give you a good starting point.
"Programming today is a race between software engineers striving to build bigger and better idiot-proof programs, and the Universe trying to produce bigger and better idiots. So far, the Universe is winning." - Rick Cook www.troschuetz.de
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pashitech wrote: suggesting a good/moderate Encryption method for XML file
Never done that, so I'm not really in the position of given sugestions regarding this topic. Sorry, but I guess someone else here can give you valuable suggestions.
"Programming today is a race between software engineers striving to build bigger and better idiot-proof programs, and the Universe trying to produce bigger and better idiots. So far, the Universe is winning." - Rick Cook www.troschuetz.de
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here i don't mean, u suggest a Perticular Encrypting method,
what i mean is
PLEASE HElp me to learn ENCRYPTION AND DECRYPTION OF AN XML FILE..
HOpe U got me, now
since i'm a beginer i wanna learn something and use.
anyway Thnx alot for ur reply,
i'l be happy if u can explain with a sample....(what ever may the method, i want implement tat[XML ENCRYPTION] in my C#.Net(2.0)WindowsApplication)
thnx again,
prashanth,
s/w Engineer,
Syfnosys.
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pashitech wrote: PLEASE HElp me to learn ENCRYPTION AND DECRYPTION OF AN XML FILE..
I can't. As I said I've never done encryption of XML files (concretely I've never done encryption at all) and therefore I'm beginner in that too. The best thing I can do, is refering you to google or the documentation of the System.Security.Cryptography and System.Security.Cryptography.Xml namespaces.
"Programming today is a race between software engineers striving to build bigger and better idiot-proof programs, and the Universe trying to produce bigger and better idiots. So far, the Universe is winning." - Rick Cook www.troschuetz.de
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typedef struct Struct0
{
UCHAR Id ;
UCHAR reserved [15];
};
typedef struct Struct1
{
ULONG ID;
UCHAR MaxVP ;
UCHAR MaxRange ;
UCHAR MaxDY ;
UCHAR MaxFY ;
UCHAR TypeInfo ;
UCHAR reserved [8];
Struct0 VPInfo[4];
};
typedef struct FinalStruct{
ULONG SystemId;
ULONG MaxINT ;
ULONG SysVersion ;
ULONG DllVersion;
ULONG reserved[12];
Struct1 Info[4];
};
DK
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try to work it how a class with some propertys
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hi,
i am creating a filebrowserdialog object and selecting a file and opening it.
now my question is how to select a more than one file.
help me.
with regards
prasad
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set the FileBrowserDialog.multiselect = true
Thanks & Regards,
Pramod
"Everyone is a genius at least once a year"
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