Set security access to folder

I'm currently doing a small function, where I need to create folder dynamically, if the folder does not exist.

Creating folder is easy, but I also need to set the security access. Finally, I've found the way of doing this.

I have created a simple class to perform this Directory-related tasks, named "Folder".

Firstly, we need to include System.IO (for Directory class) & System.Security.AccessControl (for FileSystemRights & AccessControlType enums).

public static bool Exists(string folderPath)
    {
        return Directory.Exists(folderPath);
    }

    public static void Create(string folderPath)
    {
        Directory.CreateDirectory(folderPath);
    }

    public static void Delete(string folderPath)
    {
        Directory.Delete(folderPath, true);
    }

    public static void AddSecurity(string folderPath,
        string userAccount,
        FileSystemRights fileSystemRights,
        AccessControlType controlType)
    {
        DirectoryInfo folderInfo = new DirectoryInfo(folderPath);
        
        DirectorySecurity folderSecurity = folderInfo.GetAccessControl();

        folderSecurity.AddAccessRule(
            new FileSystemAccessRule(userAccount, fileSystemRights, controlType));

        folderInfo.SetAccessControl(folderSecurity);

    }

    public static void RemoveSecurity(string folderPath,
        string userAccount,
        FileSystemRights fileSystemRights,
        AccessControlType controlType)
    {
        DirectoryInfo folderInfo = new DirectoryInfo(folderPath);

        DirectorySecurity folderSecurity = folderInfo.GetAccessControl();

        folderSecurity.RemoveAccessRule(
            new FileSystemAccessRule(userAccount, fileSystemRights, controlType));

        folderInfo.SetAccessControl(folderSecurity);

    }

    public static string[] GetListOfFileSystemRights()
    {
        return Enum.GetNames(typeof(FileSystemRights));
    }

    public static string[] GetListOfAccessControlTypes()
    {
        return Enum.GetNames(typeof(AccessControlType));
    }

Function: If the folder does not exist, create it and set security access.

if (Folder.Exists(folderPath) == false)
{
    Folder.Create(folderPath);
    Folder.AddSecurity(folderPath,"MY\\CHONGLK", FileSystemRights.Modify,AccessControlType.Allow);
}

 

To remove the security access for certain rights, use the RemoveSecurity method:

Folder.RemoveSecurity(folderPath,"MY\\CHONGLK", FileSystemRights.Modify,AccessControlType.Allow);

The last two functions is to allow users to bind the list of enum values to the UI control.

//List all FileSystemRights values in dropdownlist
systemRightsDropDownList.DataSource = Folder.GetListOfFileSystemRights();
systemRightsDropDownList.DataBind();

//List all AccessControlTypes values in dropdownlist
controlTypeDropDownList.DataSource = Folder.GetListOfAccessControlTypes();
controlTypeDropDownList.DataBind();

It's quite simple, but I didn't know these methods before this. At least, I learnt something new.