What is the point of the [Flags] attribute you can bit test without it?
The Flags attribute allows you to see a CSV(comma separated value) of your enumerated type when calling
public Enum Permissions
Read = 1,
Permissions p = Permissions.Read | Permissions.Write;
p.ToString() //Prints out "Read, Write"
However you can still get the same thing if you remove the flags attribute and just do:
p.ToString("F") //Prints out "Read, Write"
And as John pointed out it also allows you convert a CSV back to Enum using
It changes the behaviour of converting between strings and the enum values (