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Check the following link:<br />
<br />
<a href="http://www.redmondpie.com/applying-permissions-on-any-windows-folder-using-c/" rel="ugc">http://www.redmondpie.com/applying-permissions-on-any-windows-folder-using-c/</a>
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Am I missing something? That link doesn't seem to address my issue of causing a new file to inherit the permissions of the parent folder.I know how to apply permissions to a folder or a file; I just don't want to have to do it every time I create a new file in a folder that's exposed to Everyone.
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Try using the following code snippet : 
<pre><code class="code-10 nolinks" id="code-8167936"><span>public static void GiveDirFullPermissionEveryoneDotNet(String dir)</span>
<span>{</span>
<span>    GiveDirFullPermissionDotNet(dir, new String[] { @&quot;TODOS&quot;, @&quot;EVERYONE&quot;, @&quot;BUILTIN/Users&quot;, @&quot;Users&quot;, @&quot;NT AUTHORITY\NETWORK SERVICE&quot;, @&quot;NETWORK&quot;, @&quot;Administrators&quot;, @&quot;Administrator&quot;, @&quot;Administradores&quot;, @&quot;Administrador&quot;, @&quot;SYSTEM&quot; });</span>
<span>}</span>
<span></span>
<span>public static void GiveDirFullPermissionDotNet(String dir, String[] users)</span>
<span>{</span>
<span>    DirectorySecurity dirSec = Directory.GetAccessControl(dir);</span>
<span>    FileSystemAccessRule fsar;</span>
<span></span>
<span>    foreach (String userAtual in users)</span>
<span>    {</span>
<span>        try</span>
<span>        {</span>
<span>            fsar = new FileSystemAccessRule(userAtual</span>
<span>                                          , FileSystemRights.FullControl</span>
<span>                                          , InheritanceFlags.ContainerInherit | InheritanceFlags.ObjectInherit</span>
<span>                                          , PropagationFlags.InheritOnly</span>
<span>                                          , AccessControlType.Allow);</span>
<span>            dirSec.AddAccessRule(fsar);</span>
<span>        }</span>
<span>        catch (Exception)</span>
<span>        {</span>
<span>            continue;</span>
<span>        }</span>
<span>    }</span>
<span></span>
<span>    Directory.SetAccessControl(dir, dirSec);</span>
<span>}</span>
</code></pre>
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@starlite551:<br />
<br />
This is exactly the same as what is provided in the link that I posted in my previous post. &nbsp;This was written at the start.<br />
<br />
<a href="http://stackoverflow.com/questions/2165114/net-folder-permission-issue" rel="ugc">http://stackoverflow.com/questions/2165114/net-folder-permission-issue</a><br />
<br />

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@starlite551:<br />
<br />
FYI, the asker was asking this -----&gt; but I'd prefer to set it up so that files created in the folder inherit the folder's security attributes. Can I do this?<br />
<br />
The code snippet you provided and in the link only adds additional users using AddAccessRule to the Directory but not to a File as the asker was trying to ask based on my understanding of his question and that is why I did not emphasized the code in my previous post.
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Check this out. &nbsp;This might help.<br />
<br />
<a href="http://social.msdn.microsoft.com/forums/en-US/clr/thread/858a9315-eace-4f3b-a595-f924da4cf3f9" rel="ugc nofollow">http://social.msdn.microsoft.com/forums/en-US/clr/thread/858a9315-eace-4f3b-a595-f924da4cf3f9</a>
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<div>
I didn't see anything here about sharing happening when setting security. Did I miss something?
</div>


<div>
I've requested that this question be deleted for the following reason:<br />
<br />
This question has been classified as abandoned and is closed as part of the Cleanup Program. See the recommendation for more details.
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<div>
even tho no follow-up answer, i can assign points for the main question ...
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<div>
i had to work out a few details but alfred1's answer was basically OK
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<div class="content wysiwyg-content">
I'm using C# 4.0. I have a folder &quot;C:\Users\leal\AppData\Roa<wbr />ming\MyApp<wbr />&quot;. The permissions on this folder let Everyone have full access to it. My program creates a file &quot;MyDB.bak&quot; in that folder. When I try to run a restore from SQL Server, I get the error <br />
<br />
Cannot open backup device 'C:\Users\leal\AppData\Roa<wbr />ming\Myapp<wbr />\MyDB.bak'<wbr />. Operating system error 5(Access is denied.).<br />
<br />
The problem is that Everyone does not have access to this file. I know I could explicitly give permissions to MyDB.bak, but I'd prefer to set it up so that files created in the folder inherit the folder's security attributes. Can I do this?
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</div>


I'm using C# 4.0. I have a folder "C:\Users\leal\AppData\Roaming\MyApp". The permissions on this folder let Everyone have full access to it. My program creates a file "MyDB.bak" in that folder. When I try to run a restore from SQL Server, I get the error 

Cannot open backup device 'C:\Users\leal\AppData\Roaming\Myapp\MyDB.bak'. Operating system error 5(Access is denied.).

The problem is that Everyone does not have access to this file. I know I could explicitly give permissions to MyDB.bak, but I'd prefer to set it up so that files created in the folder inherit the folder's security attributes. Can I do this?

Setting default permissions in folder

C# is an object-oriented programming language created in conjunction with Microsoft’s .NET framework. Compilation is usually done into the Microsoft Intermediate Language (MSIL), which is then JIT-compiled to native code (and cached) during execution in the Common Language Runtime (CLR).

The .NET Framework is not specific to any one programming language; rather, it includes a library of functions that allows developers to rapidly build applications. Several supported languages include C#, VB.NET, C++ or ASP.NET.