C# 设置权限中英对照表

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使用C#根据不同的用户设置文件（夹）权限，

在C#中，权限的设置是求和集的一种机制，不会覆盖以前的权限；

设置 只读 权限

设置文件夹的某用户 只有读 权限 代码：

if (Directory.Exists(apath))
            {
                DirectoryInfo di = new DirectoryInfo(apath);
                DirectorySecurity dirSecurity = di.GetAccessControl();

                //删除存在的拒绝操作
                FileSystemAccessRule scanonly_one = new FileSystemAccessRule(username,
                     FileSystemRights.ChangePermissions | FileSystemRights.CreateDirectories | FileSystemRights.CreateFiles |
                     FileSystemRights.DeleteSubdirectoriesAndFiles | FileSystemRights.Modify | FileSystemRights.TakeOwnership |
                   FileSystemRights.Synchronize | FileSystemRights.Traverse, AccessControlType.Deny);
                dirSecurity.RemoveAccessRule(scanonly_one);
                //删除完全控制权限
                FileSystemAccessRule fullcontrol = new FileSystemAccessRule(username,
                   FileSystemRights.FullControl, InheritanceFlags.ContainerInherit | InheritanceFlags.ObjectInherit,
               PropagationFlags.None, AccessControlType.Allow);
                dirSecurity.RemoveAccessRule(fullcontrol);

//设置权限规则二：禁止用户的写、删除、删除子文件夹及文件、更改权限、
//创建文件夹、创建文件、执行文件、更改文件（夹）所有者 等权限，
//且此权限规则 其子文件夹、文件都可以继承
                FileSystemAccessRule readOnlyRule_two = new FileSystemAccessRule(username,
                FileSystemRights.Write | FileSystemRights.Delete | FileSystemRights.DeleteSubdirectoriesAndFiles|
                FileSystemRights.ChangePermissions|FileSystemRights.CreateDirectories|FileSystemRights.CreateFiles|
                FileSystemRights.ExecuteFile|FileSystemRights.TakeOwnership,
                InheritanceFlags.ContainerInherit | InheritanceFlags.ObjectInherit,
                PropagationFlags.None, AccessControlType.Deny);

//设置权限规则一：给予用户此文件夹的读取、执行程序、列出文件夹、同步、等权限；
//且此权限规则 其子文件夹、文件都可以继承
                FileSystemAccessRule readOnlyRule_one = new FileSystemAccessRule(username,
                    FileSystemRights.Read | FileSystemRights.Traverse | FileSystemRights.ListDirectory | 
                    FileSystemRights.Synchronize,InheritanceFlags.ContainerInherit | InheritanceFlags.ObjectInherit,
               PropagationFlags.None, AccessControlType.Allow);

                dirSecurity.ResetAccessRule(readOnlyRule_one);
                dirSecurity.AddAccessRule(readOnlyRule_two);

                di.SetAccessControl(dirSecurity);

            }         

FileSystemRights 中子函数中英文对照

("AppendData", "附加数据");
("ChangePermissions", "更改权限");
("CreateDirectories", "创建文件夹/附加数据");
("CreateFiles", "创建文件/写入数据");
("Delete", "删除");
("DeleteSubdirectoriesAndFiles", "删除子文件夹及文件");
("ExecuteFile", "执行文件");
("FullControl", "完全控制");
("ListDirectory", "列出文件夹/读取数据");
("Modify", "修改");
("Read", "读取");
("ReadAndExecute", "读取和执行");
("ReadAttributes", "读取属性");
("ReadData", "读取数据");
("ReadExtendedAttributes", "读取扩展属性");
("ReadPermissions", "读取权限");
("Synchronize", "同步");
("TakeOwnership", "更改文件(夹)所有者");
("Traverse", "执行程序");
("Write", "写入");
("WriteAttributes", "写入属性");
("WriteData", "写入数据");
("WriteExtendedAttributes", "写入扩展属性");

继承规则组合

大家写这方面的代码是有米有发现:

在文件夹属性–高级里面，继承方式有6种选择，如下图：

而C#提供的这方面的参数只有：None 、InheritOnly 这2个，那么，怎么才可以实现上面的6中选择呢

答案就是 参数组合，如下图：

此处是翻译上图组合成C#代码：

private ApplyToType GetApplyToType(InheritanceFlags inheritanceFlags, PropagationFlags propagationFlags)
{
    if (propagationFlags == PropagationFlags.None && 
        inheritanceFlags == InheritanceFlags.None) 
        return ApplyToType.ThisFolderOnly;

    if (propagationFlags == PropagationFlags.None && 
        inheritanceFlags == InheritanceFlags.ContainerInherit) 
        return ApplyToType.ThisFolderAndSubfolders;

    if (propagationFlags == PropagationFlags.None && 
        inheritanceFlags == InheritanceFlags.ObjectInherit) 
        return ApplyToType.ThisFolderAndFiles;

    if (propagationFlags == PropagationFlags.None && 
        inheritanceFlags == (InheritanceFlags.ContainerInherit | InheritanceFlags.ObjectInherit)) 
        return ApplyToType.ThisFolderSubfoldersAndFiles;

    if (propagationFlags == PropagationFlags.InheritOnly && 
        inheritanceFlags == InheritanceFlags.ContainerInherit)
        return ApplyToType.SubfoldersOnly;

    if (propagationFlags == PropagationFlags.InheritOnly && 
        inheritanceFlags == InheritanceFlags.ObjectInherit)
        return ApplyToType.FilesOnly;

    if (propagationFlags == PropagationFlags.InheritOnly && 
        inheritanceFlags == (InheritanceFlags.ContainerInherit | InheritanceFlags.ObjectInherit))
        return ApplyToType.SubfoldersAndFilesOnly;

    return ApplyToType.AndreDoesntKnow;
}

希望能帮到大家~~

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