存储过程参数为DataTable-原创手记-慕课网

开发要求，前台一次性将多笔记录存入数据库中。也就是说，将一个DataTable作为一个参数传入。而数据库的存储过程，也得有一个表数据类型（sql2008) http://www.cnblogs.com/insus/articles/1916591.html

为了实现这个功能，Insus.NET先从数据库，然后至程序前台，一步一步演示给大家。在数据库中创建一个表[Orders]:

View Code CREATE TABLE [dbo].[Orders]
(
    [Orders_nbr] INT IDENTITY(1,1) PRIMARY KEY,
    [ItemCode] NVARCHAR(50) NOT NULL,
    [UM] NVARCHAR(20) NOT NULL,
    [Quantity] DECIMAL(18,6) NOT NULL,
    [UnitPrice] DECIMAL(18,6) NOT NULL
)
GO

创建一个表类型[OrdersTableType]:

View Code CREATE TYPE [dbo].[OrdersTableType] AS TABLE
    (
    ItemCode NVARCHAR(50) NOT NULL,
    UM NVARCHAR(20) NOT NULL,
    Quantity DECIMAL(18,6) NOT NULL,
    UnitPrice DECIMAL(18,6) NOT NULL
    )

GO

创建存储过程[usp_Orders_Insert]，这个存储过程的变量，就是上面定义好的表类型。

View Code CREATE PROCEDURE [dbo].[usp_Orders_Insert]
(
@OrdersCollection [OrdersTableType] READONLY
)
AS
INSERT INTO [dbo].[Orders] ([ItemCode],[UM],[Quantity],[UnitPrice])
SELECT oc.[ItemCode],oc.[UM],[Quantity],oc.[UnitPrice] FROM @OrdersCollection AS oc;

GO

在程序，写一个类别Orders，其中一个属性，private DataTable _OrdersDataTable; 与一个方法Insert().

Ordersusing System;
using System.Collections.Generic;
using System.Data;
using System.Linq;
using System.Web;

/// <summary>
/// Summary description for Orders
/// </summary>
namespace Insus.NET
{
    public class Orders
    {
        private string _ItemCode;
        private string _UM;
        private decimal _Quantity;
        private decimal _UnitPrice;
        private DataTable _OrdersDataTable;

        public string ItemCode
        {
            get { return _ItemCode; }
            set { _ItemCode = value; }
        }
        public string UM
        {
            get { return _UM; }
            set { _UM = value; }
        }
        public decimal Quantity
        {
            get { return _Quantity; }
            set { _Quantity = value; }
        }
        public decimal UnitPrice
        {
            get { return _UnitPrice; }
            set { _UnitPrice = value; }
        }

        public DataTable OrdersDataTable
        {
            get { return _OrdersDataTable; }
            set { _OrdersDataTable = value; }
        }

        BusinessBase objBusinessBase = new BusinessBase ();

        public Orders()
        {
            //
            // TODO: Add constructor logic here
            //
        }

        public void Insert()
        {
            Parameter[] parameter = {
                                    new Parameter ("@OrdersCollection",SqlDbType.Structured,-1,_OrdersDataTable),
                                    };
           objBusinessBase.ExecuteProcedure ("usp_Orders_Insert",parameter );
        }
    }
}

在xxx.aspx网页中拉一个按钮，希望把DataTable在铵钮的事件中，插入数据库中：

<asp:Button ID="ButtonAdd" runat="server" Text="Add" OnClick="ButtonAdd_Click" />

在cs页面中，写一个DataTable,Insus.NET并手动产生三笔记录。真正的环境是你得用户有前端产生多笔记录之后，最后再一次性传入数据库中。

GetTable() private DataTable GetTable()
    {
        DataTable table = new DataTable();
        table.Columns.Add("ItemCode", typeof(string));
        table.Columns.Add("UM", typeof(string));
        table.Columns.Add("Quantity", typeof(decimal));
        table.Columns.Add("UnitPrice", typeof(decimal));

        table.Rows.Add("A003-06", "pcs", "10", "3.24");
        table.Rows.Add("A133-26", "pcs", "10", "9.06");
        table.Rows.Add("A605-06", "pcs", "3", "5.67");
        return table;
    }

最后是铵钮Click事件：

引用命名空间 using Insus.NET;

实例化Orders类别 Orders objOrders = new Orders();

View Code    protected void ButtonAdd_Click(object sender, EventArgs e)
    {
      Orders objOrders = new Orders();
        try
        {
            objOrders.OrdersDataTable = GetTable();
            objOrders.Insert();
        }
        catch (Exception ex)
        {
            Response.Write(ex.Message);
        }
    }