regnew.aspx.vb

这是一个电子商务入门级的代码。 其中包括用户注册

Imports System.Data
Imports System.Data.OleDb
Public Class regNew
    Inherits System.Web.UI.Page
    Protected WithEvents Label1 As System.Web.UI.WebControls.Label
    Protected WithEvents TextBox1 As System.Web.UI.WebControls.TextBox
    Protected WithEvents Label2 As System.Web.UI.WebControls.Label
    Protected WithEvents Label3 As System.Web.UI.WebControls.Label
    Protected WithEvents TextBox2 As System.Web.UI.WebControls.TextBox
    Protected WithEvents Button1 As System.Web.UI.WebControls.Button
    Protected WithEvents Button2 As System.Web.UI.WebControls.Button
    Protected WithEvents Button3 As System.Web.UI.WebControls.Button
    Protected WithEvents Label4 As System.Web.UI.WebControls.Label
    Protected WithEvents TextBox4 As System.Web.UI.WebControls.TextBox
    Protected WithEvents DropDownList1 As System.Web.UI.WebControls.DropDownList
    Protected WithEvents Label5 As System.Web.UI.WebControls.Label
    Protected WithEvents TextBox5 As System.Web.UI.WebControls.TextBox
    Protected WithEvents TextBox6 As System.Web.UI.WebControls.TextBox
    Protected WithEvents Label6 As System.Web.UI.WebControls.Label
    Protected WithEvents Label7 As System.Web.UI.WebControls.Label
    Protected WithEvents TextBox3 As System.Web.UI.WebControls.TextBox

#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

    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
    End Sub

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        If TextBox1.Text = "" Or TextBox2.Text = "" Or TextBox3.Text = "" Then
            Response.Write("<script language=vbscript>alert ""不能输入空信息!""</script>")
        ElseIf TextBox2.Text <> TextBox3.Text Then
            Response.Write("<script language=vbscript>alert ""两次输入的密码不一样!""</script>")
        Else
            Dim mycon As New OleDbConnection()
            Dim myds As New DataSet()
            Dim mycmd As New OleDbCommand()
            Dim myrd As OleDbDataReader
            mycon.ConnectionString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" & Server.MapPath("OnLineSale.mdb")
            mycon.Open()
            mycmd.Connection = mycon
            Dim sqlstr
            sqlstr = "select * from customer where cusID='" & TextBox1.Text & "'"
            mycmd.CommandText = sqlstr
            myrd = mycmd.ExecuteReader

            If myrd.Read Then
                myrd.Close()
                Response.Write("<script language=vbscript>alert ""您输入的帐号已存在,请重新输入帐号!""</script>")
                Exit Sub
            End If
            myrd.Close()
            Dim myName
            If DropDownList1.SelectedIndex = 0 Then
                myName = "先生"
            Else
                myName = "女士"
            End If
            myName = TextBox4.Text & myName
            sqlstr = "insert into customer values ('" & TextBox1.Text & "','" & TextBox3.Text & "','" & myName & "','" & TextBox5.Text & "','" & TextBox6.Text & "')"
            mycmd.CommandText = sqlstr
            mycmd.ExecuteNonQuery()
            mycon.Close()
            mycon = Nothing
            Response.Redirect("regOK.aspx?")
        End If
    End Sub

    Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
        TextBox1.Text = ""
        TextBox2.Text = ""
        TextBox3.Text = ""
    End Sub

    Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
        Response.Redirect("logon.aspx")
    End Sub
End Class