Setting up a constant class

In my code I want to write Constant.Type.Value throughout  my code, well I’ve found a nice way to do this in C#.  All my constants are going sit in a single class and I can create static structures that hold the constant strings links so:

/// <summary>

/// This class holds all the constants for the Lynx application.

/// </summary>

public static class Constant

{

    /// <summary>

    /// Usage constants reference the rfUsage.Name field.

    /// </summary>

    public struct Usage

    {

        public const string Vendor = "Vendor";

        public const string Customer = "Customer";

        public const string ItemSize = "ItemSize";

        public const string Inventory = "Inventory";

    }

    /// <summary>

    /// Type contants reference the rfType.Name field

    /// </summary>

    public struct Type

    {

        public const string Weight = "Weight";

        public const string Thickness = "Thickness";

    }

    /// <summary>

    /// Unit of measure constants reference the rfUnitOnMeasure.Name field

    /// </summary>

    public struct UnitOfMeasure

    {

        public const string Grams = "Grams";

        public const string Millimeters = "Millimeters";

        public const string Box = "Box";

        public const string Bundle = "Bundle";

    }

}

And I make calls to the constants list like so:

Name = Constant.UnitOfMeasure.Grams