10、步步为营VS 2008 + .NET 3.5(10) - DLINQ(LINQ to SQL)之调用存储过程的添加、查询、更新和删除

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步步为营VS 2008 + .NET 3.5(10) - DLINQ(LINQ to SQL)之调用存储过程的添加、查询、更新和删除

作者：webabcd


介绍
以Northwind为示例数据库，DLINQ(LINQ to SQL)之调用指定存储过程的添加操作、查询操作、更新操作和删除操作


示例
相关的存储过程

ALTER PROCEDURE [dbo].[spInsertCategory]
    @CategoryName nvarchar(15),
    @Description ntext,
    @CategoryID int OUTPUT
AS

SET NOCOUNT ON

INSERT INTO [dbo].[Categories] (
    [CategoryName],
    [Description]
) VALUES (
    @CategoryName,
    @Description
)

SET @CategoryID = SCOPE_IDENTITY()

RETURN @@ERROR

ALTER PROCEDURE [dbo].[spUpdateCategory]
    @CategoryID int,
    @CategoryName nvarchar(15),
    @Description ntext
AS

SET NOCOUNT ON

UPDATE [dbo].[Categories] SET
    [CategoryName] = @CategoryName,
    [Description] = @Description
WHERE
    [CategoryID] = @CategoryID
    
RETURN @@ERROR

ALTER PROCEDURE [dbo].[spDeleteCategory]
    @CategoryID int
AS

SET NOCOUNT ON

DELETE FROM [dbo].[Categories]
WHERE
    [CategoryID] = @CategoryID
    
RETURN @@ERROR

ALTER PROCEDURE [dbo].[spSelectCategory]
    @CategoryID int = null
AS

SET NOCOUNT ON
SET TRANSACTION ISOLATION LEVEL READ COMMITTED

SELECT
    [CategoryID],
    [CategoryName],
    [Description],
    [Picture]
FROM
    [dbo].[Categories]
WHERE
    @CategoryID IS NULL OR [CategoryID] = @CategoryID

ALTER PROCEDURE [dbo].[spSelectProduct]
    @ProductID int = null
AS

SET NOCOUNT ON
SET TRANSACTION ISOLATION LEVEL READ COMMITTED

SELECT
    [ProductID],
    [ProductName],
    [SupplierID],
    [CategoryID],
    [QuantityPerUnit],
    [UnitPrice],
    [UnitsInStock],
    [UnitsOnOrder],
    [ReorderLevel],
    [Discontinued]
FROM
    [dbo].[Products]
WHERE
    @ProductID IS NULL OR [ProductID] = @ProductID

SP.aspx

SP.aspx.cs

using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Xml.Linq;

using DAL;

public partial class LINQ_DLINQ_SP : System.Web.UI.Page

OK
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