order.aspx.vb

这是用ASP.NET和SQLserver编写的购物网站的程序

Imports System.Data.SqlClient
Imports System.Data
Public Class order
    Inherits System.Web.UI.Page
    Dim into As String = ConfigurationSettings.AppSettings("ConnectionString")
    Dim com As New SqlCommand
    Dim com1 As New SqlCommand
    Dim con1 As SqlConnection = New SqlConnection(into)
    Protected WithEvents DataGrid1 As System.Web.UI.WebControls.DataGrid
    Protected WithEvents TextBox5 As System.Web.UI.WebControls.TextBox
    Protected WithEvents Label5 As System.Web.UI.WebControls.Label
    Protected WithEvents TextBox4 As System.Web.UI.WebControls.TextBox
    Protected WithEvents Label4 As System.Web.UI.WebControls.Label
    Protected WithEvents TextBox3 As System.Web.UI.WebControls.TextBox
    Protected WithEvents Label6 As System.Web.UI.WebControls.Label
    Protected WithEvents TextBox2 As System.Web.UI.WebControls.TextBox
    Protected WithEvents Label2 As System.Web.UI.WebControls.Label
    Protected WithEvents TextBox1 As System.Web.UI.WebControls.TextBox
    Protected WithEvents Label1 As System.Web.UI.WebControls.Label
    Protected WithEvents Label7 As System.Web.UI.WebControls.Label
    Protected WithEvents Label8 As System.Web.UI.WebControls.Label
    Protected WithEvents Label9 As System.Web.UI.WebControls.Label
    Protected WithEvents Hyperlink11 As System.Web.UI.WebControls.HyperLink
    Protected WithEvents Button1 As System.Web.UI.WebControls.Button
    Protected WithEvents Label3 As System.Web.UI.WebControls.Label
    Dim con As SqlConnection = New SqlConnection(into)
#Region " Web 窗体设计器生成的代码 "

    '该调用是 Web 窗体设计器所必需的。
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()

    End Sub
    Protected WithEvents ImageButton1 As System.Web.UI.WebControls.ImageButton
    Protected WithEvents HyperLink6 As System.Web.UI.WebControls.HyperLink
    Protected WithEvents HyperLink5 As System.Web.UI.WebControls.HyperLink
    Protected WithEvents HyperLink4 As System.Web.UI.WebControls.HyperLink
    Protected WithEvents HyperLink3 As System.Web.UI.WebControls.HyperLink
    Protected WithEvents HyperLink1 As System.Web.UI.WebControls.HyperLink
    Protected WithEvents HyperLink2 As System.Web.UI.WebControls.HyperLink

    '注意: 以下占位符声明是 Web 窗体设计器所必需的。
    '不要删除或移动它。
    Private designerPlaceholderDeclaration As System.Object

    Private Sub Page_Init(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Init
        'CODEGEN: 此方法调用是 Web 窗体设计器所必需的
        '不要使用代码编辑器修改它。
        InitializeComponent()
    End Sub

#End Region

    Private Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        '在此处放置初始化页的用户代码
        con.Open()
        com.CommandText = "select orderid 订单号,itemid 商品号,quentity 数量,untiprice 单价,totalprice 总价 from lineitem where orderid= '" & Session("orderid") & "'"
        com.Connection = con
        Dim da As New SqlClient.SqlDataAdapter(com.CommandText, con)
        Dim ds As New DataSet
        da.Fill(ds)
        DataGrid1.DataSource = ds
        DataGrid1.DataBind()
        con.Close()
        con.Open()
        con1.Open()
        com.CommandText = "select sum(totalprice) from lineitem where orderid=" & Session("orderid") & ""
        Dim sum As String = com.ExecuteScalar()
        com.Connection = con
        com1.CommandText = "select cost from ordercost"
        com1.Connection = con
        Dim myreader As SqlDataReader = com1.ExecuteReader()
        myreader.Read()
        TextBox1.Text = Session("orderid")
        TextBox2.Text = 200343128 'Session("username")
        TextBox3.Text = Today
        TextBox4.Text = sum + myreader(0)
        TextBox5.Text = "正在配货"
        con.Close()
        con.Open()
        com.CommandText = "insert into orders values(" & TextBox1.Text & ",'" & TextBox2.Text & "','" & TextBox3.Text & "'," & TextBox4.Text & ",0)"
        com.Connection = con
        com.ExecuteNonQuery()
        con.Close()
        con1.Close()
        Label8.Text = "欢迎" & Session("username")
        Label8.Visible = True
        Button1.Visible = True

    End Sub
    Private Sub ImageButton1_Click(ByVal sender As System.Object, ByVal e As System.Web.UI.ImageClickEventArgs) Handles ImageButton1.Click
        Response.Redirect("webform1.aspx")
    End Sub

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        Session("userpower") = -1
        Session("username") = ""
        Label8.Visible = False
        Button1.Visible = False
    End Sub
End Class