c#中为文件夹设置权限

在文件操作中,常常会遇到 对所访问的文件夹没有权限 的错误,下面介绍C#中怎么设置文件夹的权限:
 

 1/**//// <summary>
 2        /// 为创建的临时文件分配权限
 3        /// </summary>
 4        /// <param name="pathname"></param>
 5        /// <param name="username"></param>
 6        /// <param name="power"></param>
 7        /// <remarks>SKY 2007-8-6</remarks>
 8        public void addpathPower(string pathname, string username, string power)
 9        {
10
11            DirectoryInfo dirinfo = new DirectoryInfo(pathname);
12
13            if ((dirinfo.Attributes & FileAttributes.ReadOnly) != 0)
14            {
15                dirinfo.Attributes = FileAttributes.Normal;
16            }
17
18            //取得访问控制列表
19            DirectorySecurity dirsecurity = dirinfo.GetAccessControl();
20
21            switch (power)
22            {
23                case "FullControl":
24                    dirsecurity.AddAccessRule(new FileSystemAccessRule(username, FileSystemRights.FullControl, InheritanceFlags.ContainerInherit, PropagationFlags.InheritOnly, AccessControlType.Allow));
25                    break;
26                case "ReadOnly":
27                    dirsecurity.AddAccessRule(new FileSystemAccessRule(username, FileSystemRights.Read, AccessControlType.Allow));
28                    break;
29                case "Write":
30                    dirsecurity.AddAccessRule(new FileSystemAccessRule(username, FileSystemRights.Write, AccessControlType.Allow));
31                    break;
32                case "Modify":
33                    dirsecurity.AddAccessRule(new FileSystemAccessRule(username, FileSystemRights.Modify, AccessControlType.Allow));
34                    break;
35            }
36        }

DirectoryInfo是需要实例化的,而且实例化的时候必须指定文件夹路径,Directory则是静态类.

主程序中调用的写法:

1private void CreateDirectory()
2{
3   
4   addpathPower(sPath, "ASPNET", "FullControl");
5   
6}

   一般来说 Username 选用 ASPNET