asp.net 设置文件权限

给文件权限everyone

 

以下是1.0的方法，调用Windows   API   
  using   Microsoft.Win32.Security;   
  
  private   Boolean   CreateDir(String   strSitePath,   String   strUserName) 
  {   
       Boolean   bOk;   
      try  
      {   
        Directory.CreateDirectory(strSitePath);   
      SecurityDescriptor   secDesc   =   SecurityDescriptor.GetFileSecurity(strSitePath,SECURITY_INFORMATION.DACL_SECURITY_INFORMATION);   
           Dacl   dacl   =   secDesc.Dacl;   
           Sid   sidUser   =   new   Sid   (strUserName);   
      
    
         //   allow:   folder,   subfolder   and   files   
         //   modify   
        dacl.AddAce(new   AceAccessAllowed(sidUser,   AccessType.GENERIC_WRITE   |   AccessType.GENERIC_READ   |   AccessType.DELETE   |   AccessType.GENERIC_EXECUTE   ,   AceFlags.OBJECT_INHERIT_ACE   |   AceFlags.CONTAINER_INHERIT_ACE));   
                                
    
                              //   deny:   this   folder   
                              //   write   attribs   
                              //   write   extended   attribs   
                              //   delete   
                              //   change   permissions   
                              //   take   ownership   
     DirectoryAccessType   DAType   =   DirectoryAccessType.FILE_WRITE_ATTRIBUTES   |   DirectoryAccessType.FILE_WRITE_EA   |   DirectoryAccessType.DELETE   |   DirectoryAccessType.WRITE_OWNER   |   DirectoryAccessType.WRITE_DAC;   
            AccessType   AType   =   (AccessType)DAType;   
            dacl.AddAce   (new   AceAccessDenied   (sidUser,   AType));   
      
      secDesc.SetDacl(dacl);   
     secDesc.SetFileSecurity(strSitePath,   SECURITY_INFORMATION.DACL_SECURITY_INFORMATION);   
      bOk   =   true;   
     }  
     catch   
     {   
       bOk   =   false;   
     }   
     return   bOk;   
  }   
    
  2.0的,里面的方法是2.0中新加的：   
  System.IO.DirectoryInfo   dInfo   =   new   System.IO.DirectoryInfo("Your   Forlder   Path   here");   
        System.Security.AccessControl.DirectorySecurity   dSecurity   =   new   System.Security.AccessControl.DirectorySecurity();   
        dSecurity.AddAccessRule(new   System.Security.AccessControl.FileSystemAccessRule("Everyone",   System.Security.AccessControl.FileSystemRights.WriteData,   System.Security.AccessControl.AccessControlType.Allow));   
         dInfo.SetAccessControl(dSecurity);   

 

 在网上找了半天也只找到这个代码，而且只能用加everyone权限。有哪位知道告诉我一声，先谢了！