Region和Products表的SCHEMA代码，Region表中的主键时赋值方式，Products中的主键是自动增一的
CREATE TABLE [dbo].[Region] (
[RegionID] [int] PRIMARY KEY,
[RegionDescription] [nchar] (50) NOT NULL
)
CREATE TABLE [dbo].[Products] (
[ProductID] [int] IDENTITY (1, 1) PRIMARY KEY,
[ProductName] [nvarchar] (40) NULL ,
[SupplierID] [int] NULL ,
[CategoryID] [int] NULL ,
[QuantityPerUnit] [nvarchar] (20) NULL ,
[UnitPrice] [money] NULL ,
[UnitsInStock] [smallint] NULL ,
[UnitsOnOrder] [smallint] NULL ,
[ReorderLevel] [smallint] NULL ,
[Discontinued] [bit] NOT NULL
)
强类型活动记录类Region和Product代码:Region的ID属性包含get和set,而Product的ProductID属性只需要get即可，因为Product类映射的Products表的主键是自动增一的。
public class Region:ActiveRecord
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应用例子：
1 数据加载Load ,或LoadByKey返回数据库中的一条记录，如果有多条只加载第一条记录
Product product = new Product();
product.LoadByKey(1);
this.Text = product.ProductName + "--------" + product.SupplierID.ToString();
SQL 输出
SELECT
[ProductID],
[ProductName],
[SupplierID],
[CategoryID],
[QuantityPerUnit],
[UnitPrice],
[UnitsInStock],
[UnitsOnOrder],
[ReorderLevel],
[Discontinued]
FROM
[Products]
WHERE
[ProductID] = @ProductID
2 数据加载 2
Product product = new Products();
product.ID = 1;
product.Load();
this.Text = product.ProductName + "--------" + product.SupplierID.ToString();
SQL 输出同上
3 返回所有记录
Product product = new Product();
IList products = product.Find();
foreach(Product p in products)
SQL 输出
SELECT
[ProductID],
[ProductName],
[SupplierID],
[CategoryID],
[QuantityPerUnit],
[UnitPrice],
[UnitsInStock],
[UnitsOnOrder],
[ReorderLevel],
[Discontinued]
FROM
[Products]
4 分页操作，取第3页，每页5条记录
Product product = new Product();
IList products = product.Find(2,5);
foreach(Product p in products)
}
SQL 输出
SELECT TOP 5 * FROM Products WHERE ProductID > (SELECT MAX(ProductID) FROM ( SELECT TOP 10 ProductID FROM Products ORDER BY ProductID ASC) AS TMP) ORDER BY ProductID ASC
4.2 分页操作2，取第3页，每页5条记录
Product product = new Product();
product.Discontinued = false;
IList products = product.Find(2,5);
foreach(Product p in products)
}
SQL 输出
SELECT TOP 5 * FROM ( SELECT * FROM [Products]
WHERE
[Discontinued]=@Discontinued ) AS TMP WHERE TMP.ProductID > (SELECT MAX(TMP3.ProductID) FROM ( SELECT TOP 10 TMP2.ProductID FROM ( SELECT * FROM
[Products]
WHERE
[Discontinued]=@Discontinued ) AS TMP2 ORDER BY TMP2.ProductID ASC) AS TMP3) ORDER BY TMP.ProductID ASC
5 多条件查询
Product product = new Product();
product.SupplierID = 7;
product.CategoryID = 3;
IList products = product.Find();
foreach(Product p in products)
}
SQL 输出
SELECT
[ProductID],
[ProductName],
[SupplierID],
[CategoryID],
[QuantityPerUnit],
[UnitPrice],
[UnitsInStock],
[UnitsOnOrder],
[ReorderLevel],
[Discontinued]
FROM
[Products]
WHERE
[SupplierID]=@SupplierID AND
[CategoryID]=@CategoryID
5.2 多条件查询，通过Condition
Product product = new Product();
Condition con = product.SelectCommand
.NewCondition("SupplierID") == 7
&& product.SelectCommand.NewCondition("CategoryID") == 3;
product.SelectCommand.Where(con);
IList products = product.Find();
foreach(Product p in products)
}
SQL 输出同上
6 数据插入
Region rg = new Region();
rg.ID = 7;
rg.Description = "77";
rg.Save();
SQL 输出
INSERT INTO [Region] (
[RegionID],
[RegionDescription]
) VALUES (
@RegionID,
@RegionDescription
)
6.2 数据插入2
Product product = new Product();
product.ProductName ="Test ActiveRecord!";
product.SupplierID = 7;
product.CategoryID = 3;
product.QuantityPerUnit = "test ! test !";
product.UnitPrice = 0.5m;
product.UnitsInStock = 5;
product.UnitsOnOrder = 3;
product.ReorderLevel = 10;
product.Discontinued = true;
product.Save();
Console.WriteLine(product.ProductID);
SQL 输出
INSERT INTO [Products] (
[ProductName],
[SupplierID],
[CategoryID],
[QuantityPerUnit],
[UnitPrice],
[UnitsInStock],
[UnitsOnOrder],
[ReorderLevel],
[Discontinued]
) VALUES (
@ProductName,
@SupplierID,
@CategoryID,
@QuantityPerUnit,
@UnitPrice,
@UnitsInStock,
@UnitsOnOrder,
@ReorderLevel,
@Discontinued
);
select CAST( SCOPE_IDENTITY() AS BIGINT)
6.3 数据插入3，部分字段的插入
Product product = new Product();
product.ProductName ="Test ActiveRecord!";
product.SupplierID = 7;
product.CategoryID = 3;
product.QuantityPerUnit = "test ! test !";
product.Discontinued = true;
product.Save();
Console.WriteLine(product.ProductID);
SQL 输出
7 数据更新
Region
rg = new Region();
rg.ID = 7;
rg.Load();
rg.Description = "7777";
rg.Save();
SQL 输出
SELECT
[RegionID],
[RegionDescription]
FROM
[Region]
WHERE
[RegionID]=@RegionID
UPDATE [Region] SET
[RegionDescription] = @RegionDescription
WHERE
RegionID = @RegionID
7.2 数据更新，有选择性的只更新“脏”列
Product product = new Product();
product.ID = 93;
product.Load();
product.ProductName ="Test Update ActiveRecord!";
product.QuantityPerUnit = "test Update! test Update!";
product.Discontinued = true;
product.Save();
SQL 输出
SELECT
[ProductID],
[ProductName],
[SupplierID],
[CategoryID],
[QuantityPerUnit],
[UnitPrice],
[UnitsInStock],
[UnitsOnOrder],
[ReorderLevel],
[Discontinued]
FROM
[Products]
WHERE
[ProductID]=@ProductID
UPDATE [Products] SET
[ProductName] = @ProductName,
[QuantityPerUnit] = @QuantityPerUnit,
[Discontinued] = @Discontinued
WHERE
ProductID = @ProductID
7.3 数据删除
Region = new Region();
rg.ID=6;
rg.Delete();
SQL 输出
DELETE FROM [Region]
WHERE
RegionID = @RegionID
1.5 数据删除2（条件删除（活动记录里面封装了Table数据库表的元数据对象里面），也可以以Filter方式进行删除或Where子句的方式进行删除)
SQL 输出 同上
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