Question

我正在使用EF并为我们的数据库添加一些产品数据。我播种的数据有一部分将重复约100次。而不是复制和粘贴我的代码，我宁愿用一个方法填充我的列表，但由于我是一个新手，我似乎无法正常工作：

以下是上下文中的代码：

context.Products.AddOrUpdate(
            pr => pr.Name,
            new Product
            {
                Name = "3.5x5",
                ProductCategoryId = 1,
                ProductSubCategoryId1 = 1,
                ProductSubCategoryId2 = 3,
                VendorId = 1,
                HeightUnitId = 2,
                Height = (decimal)3.5,
                Width = 5,
                ProductOptions =
                new List<ProductOption>
                {
                    new ProductOption { Name = "Paper", InputTypeSingleOptionId = 1, InputTypeMultipleOptionId = 2, SortOrder = 1,
                        ProductOptionsDetails =
                        new List<ProductOptionsDetail>
                        {
                            new ProductOptionsDetail { Name = "Glossy", Value = "Glossy", IsDefault = true, SortOrder = 1 },
                            new ProductOptionsDetail { Name = "Matte", Value = "Matte", IsDefault = false, SortOrder = 2 },
                            new ProductOptionsDetail { Name = "Metallic", Value = "Metallic", IsDefault = false, SortOrder = 3 },
                            new ProductOptionsDetail { Name = "Lustre", Value = "Lustre", IsDefault = false, SortOrder = 4 }
                        }
                    },
                    new ProductOption { Name = "Color", InputTypeSingleOptionId = 1, InputTypeMultipleOptionId = 2, SortOrder = 2,
                        ProductOptionsDetails =
                        new List<ProductOptionsDetail>
                        {
                            new ProductOptionsDetail { Name = "Color", Value = "Color", IsDefault = true, SortOrder = 1 },
                            new ProductOptionsDetail { Name = "Black and white", Value = "Black and White", IsDefault = false, SortOrder = 2 },
                            new ProductOptionsDetail { Name = "Sepia", Value = "Sepia", IsDefault = false, SortOrder = 3 }
                        } 
                    },
                    new ProductOption { Name = "Texture", InputTypeSingleOptionId = 1, InputTypeMultipleOptionId = 2, SortOrder = 3,
                        ProductOptionsDetails =
                        new List<ProductOptionsDetail>
                        {
                            new ProductOptionsDetail { Name = "None", Value = "None", IsDefault = true, SortOrder = 1 },
                            new ProductOptionsDetail { Name = "Linen texture", Value = "Linen", IsDefault = false, SortOrder = 2 },                         
                            new ProductOptionsDetail { Name = "Canvas texture", Value = "Canvas", IsDefault = false, SortOrder = 3 },
                            new ProductOptionsDetail { Name = "Watercolor texture", Value = "Canvas", IsDefault = false, SortOrder = 4 },
                            new ProductOptionsDetail { Name = "Pebble texture", Value = "Pebble", IsDefault = false, SortOrder = 5 }
                        }
                    },
                    new ProductOption { Name = "Coating", InputTypeSingleOptionId = 1, InputTypeMultipleOptionId = 2, SortOrder = 4,
                        ProductOptionsDetails =
                        new List<ProductOptionsDetail>
                        {
                            new ProductOptionsDetail { Name = "None", Value = "None", IsDefault = true, SortOrder = 1 },
                            new ProductOptionsDetail { Name = "Linen texture", Value = "Linen", IsDefault = false, SortOrder = 2 },                         
                            new ProductOptionsDetail { Name = "Canvas texture", Value = "Canvas", IsDefault = false, SortOrder = 3 },
                            new ProductOptionsDetail { Name = "Watercolor texture", Value = "Canvas", IsDefault = false, SortOrder = 4 },
                            new ProductOptionsDetail { Name = "Pebble texture", Value = "Pebble", IsDefault = false, SortOrder = 5 }
                        }
                    }
                }
            },

我想从一个方法返回的部分是这样的： ProductOptions = getOptions（）所有嵌套代码都可以逐字重复。我尝试过其他一些例子，但我一直在Visual Studio中遇到错误。如果我能得到一个非常基本的方法，那将非常感激。

Answer 1

public List<ProductOptionsDetail> GetOptions() {
    return new List<ProductOptionsDetail>()
        {
            new ProductOptionsDetail() { Name = "None", Value = "None", IsDefault = true, SortOrder = 1 },
            new ProductOptionsDetail() { Name = "Linen texture", Value = "Linen", IsDefault = false, SortOrder = 2 },                         
            new ProductOptionsDetail() { Name = "Canvas texture", Value = "Canvas", IsDefault = false, SortOrder = 3 },
            new ProductOptionsDetail() { Name = "Watercolor texture", Value = "Canvas", IsDefault = false, SortOrder = 4 },
            new ProductOptionsDetail() { Name = "Pebble texture", Value = "Pebble", IsDefault = false, SortOrder = 5 }
        };
}

MVC 4 C＃如何创建一个返回列表<object> </object>的方法

1 个答案: