GetEnumFlags

    public static string GetEnumFlags(Type enumType)
    {
        //Type enumType = typeof(System.Diagnostics.TraceOptions);

        System.Text.StringBuilder builder = new System.Text.StringBuilder();

        int maxValue = 0;
        Array values = Enum.GetValues(enumType);
        for(int i=0;i<values.Length;i++){
            int v = Convert.ToInt32(values.GetValue(i));

            if(v> maxValue)
                maxValue = v;
        }

        maxValue *= 2;

        // Display all possible combinations of values.
        // Also display an invalid value.
        for( int val = 0; val <= maxValue; val++ )
            builder.AppendFormat( "{0,3} - {1}\r\n",
                val, (Enum.ToObject(enumType,val)).ToString( ) );


        return builder.ToString();
    }