private T FillIn<T>(T obj)
        {
            Type type = obj.GetType();
            PropertyInfo[] properties = type.GetProperties(BindingFlags.Public | BindingFlags.FlattenHierarchy | BindingFlags.Instance);

            foreach (PropertyInfo property in properties)
            {
                if (property.CanWrite && type != property.PropertyType)
                {
                    if (property.PropertyType == typeof(string))
                        property.SetValue(obj, random.NextString(random.Next(100)));
                    else if (property.PropertyType == typeof(bool))
                        property.SetValue(obj, random.NextBoolean());
                    else if (property.PropertyType == typeof(decimal))
                        property.SetValue(obj, (decimal)random.NextDouble());
                    else if (property.PropertyType == typeof(Guid))
                        property.SetValue(obj, Guid.NewGuid());
                    else if (property.PropertyType == typeof(DateTime))
                        property.SetValue(obj, DateTime.Now.AddMilliseconds(-1 * random.Next(1440 * 60 * 1000)));
                    else if (property.PropertyType == typeof(DateTimeOffset))
                        property.SetValue(obj, new DateTimeOffset(DateTime.Now.AddMilliseconds(-1 * random.Next(1440 * 60 * 1000))));
                    else if (property.PropertyType == typeof(bool?))
                    {
                        if (random.NextDouble() > 0.5d)
                            property.SetValue(obj, random.NextBoolean());
                        else
                            property.SetValue(obj, null);
                    }
                    else if (property.PropertyType == typeof(long?))
                    {
                        if (random.NextDouble() > 0.5d)
                            property.SetValue(obj, (long)random.Next());
                        else
                            property.SetValue(obj, null);
                    }
                    else if (property.PropertyType == typeof(int?))
                    {
                        if (random.NextDouble() > 0.5d)
                            property.SetValue(obj, (int)random.Next());
                        else
                            property.SetValue(obj, null);
                    }
                    else if (property.PropertyType == typeof(decimal?))
                    {
                        if (random.NextDouble() > 0.5d)
                            property.SetValue(obj, (decimal)random.NextDouble());
                        else
                            property.SetValue(obj, null);
                    }
                    else if (property.PropertyType.IsPrimitive)
                        property.SetValue(obj, random.Next());
                }
            }
            return obj;
        }