Enum types, FlagsAttribute & Zero value

We all know about Enums types and use them every single day. What is not that often used is to decorate the Enum type with the FlagsAttribute.

When an Enum type has the FlagsAttribute we can assign multiple values to it and thus combine multiple information into a single enum.

The enum values should be a power of two so that a bit set is achieved.

Here is a typical Enum type:

public enum OperationMode
    /// <summary>
    /// No operation mode
    /// </summary>
    None = 0,
    /// <summary>
    /// Standard operation mode
    /// </summary>
    Standard = 1,
    /// <summary>
    /// Accept bubble requests mode
    /// </summary>
    Parent = 2

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