Question

C#怎样做到禁止删除一个路径下的文件？答案满意有效不限量加分！！

我在代码中对文件设置这个属性没有用，只能做到不允许修改 ，但是删除就阻止不了了，大神看看我的代码该怎么写，
FileSecurity ds2 = new FileSecurity();
ds2.AddAccessRule(new FileSystemAccessRule(Environment.UserName, FileSystemRights.Delete | FileSystemRights.DeleteSubdirectoriesAndFiles | FileSystemRights.Write, AccessControlType.Allow));
ds2.AddAccessRule(new FileSystemAccessRule("Administrator", FileSystemRights.Write | FileSystemRights.DeleteSubdirectoriesAndFiles | FileSystemRights.Delete, AccessControlType.Allow));
File.SetAccessControl(文件的路径, ds2);
FileSecurity ds2 = new FileSecurity();
ds2.AddAccessRule(new FileSystemAccessRule(Environment.UserName, FileSystemRights.Delete | FileSystemRights.DeleteSubdirectoriesAndFiles | FileSystemRights.Write, AccessControlType.Deny);
ds2.AddAccessRule(new FileSystemAccessRule("Administrator", FileSystemRights.Write | FileSystemRights.DeleteSubdirectoriesAndFiles | FileSystemRights.Delete, AccessControlType.Deny));
File.SetAccessControl(文件的路径, ds2);

Answer 1

禁 止删除这个不太现实，你想想系统上有多少文件是不能删的（各种手段都可以）除了系统进程保护的除外。

另一种方式是加文件加到内存中，这样文件就不能删了。得有守护进程。

试试下面的。
FileSecurity fSecurity = File.GetAccessControl(fileName);

AuthorizationRuleCollection rules = fSecurity.GetAccessRules(true, true, typeof(System.Security.Principal.SecurityIdentifier));

foreach (AuthorizationRule rule in rules)

{
System.Security.Principal.NTAccount account =
(System.Security.Principal.NTAccount)rule.IdentityReference.Translate(typeof(System.Security.Principal.NTAccount));

if (account.Value != "BUILTIN\\Administrators")

{

fSecurity.AddAccessRule(new FileSystemAccessRule(account.Value, FileSystemRights.Delete, AccessControlType.Deny));

}

}

File.SetAccessControl(fileName, fSecurity);