menu.vb

采用VB.net开发的单机版餐饮服务系统

Imports System
Imports System.Data
Imports System.Drawing
Imports System.Data.SqlClient

Public Class Form13
    Inherits System.Windows.Forms.Form

    Dim myDS As New Data.DataSet()
#Region " Windows 窗体设计器生成的代码 "

    Public Sub New()
        MyBase.New()

        '该调用是 Windows 窗体设计器所必需的。
        InitializeComponent()

        '在 InitializeComponent() 调用之后添加任何初始化

    End Sub

    '窗体重写处置以清理组件列表。
    Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
        If disposing Then
            If Not (components Is Nothing) Then
                components.Dispose()
            End If
        End If
        MyBase.Dispose(disposing)
    End Sub

    'Windows 窗体设计器所必需的
    Private components As System.ComponentModel.IContainer

    '注意：以下过程是 Windows 窗体设计器所必需的
    '可以使用 Windows 窗体设计器修改此过程。
    '不要使用代码编辑器修改它。
    Friend WithEvents GroupBox1 As System.Windows.Forms.GroupBox
    Friend WithEvents ListBox1 As System.Windows.Forms.ListBox
    Friend WithEvents ListBox2 As System.Windows.Forms.ListBox
    Friend WithEvents Label1 As System.Windows.Forms.Label
    Friend WithEvents Label2 As System.Windows.Forms.Label
    Friend WithEvents Button1 As System.Windows.Forms.Button
    Friend WithEvents Button2 As System.Windows.Forms.Button
    Friend WithEvents Button3 As System.Windows.Forms.Button
    Friend WithEvents Button4 As System.Windows.Forms.Button
    Friend WithEvents Label3 As System.Windows.Forms.Label
    Friend WithEvents TextBox1 As System.Windows.Forms.TextBox
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        Dim resources As System.Resources.ResourceManager = New System.Resources.ResourceManager(GetType(Form13))
        Me.GroupBox1 = New System.Windows.Forms.GroupBox()
        Me.Button2 = New System.Windows.Forms.Button()
        Me.Button1 = New System.Windows.Forms.Button()
        Me.Label2 = New System.Windows.Forms.Label()
        Me.Label1 = New System.Windows.Forms.Label()
        Me.ListBox2 = New System.Windows.Forms.ListBox()
        Me.ListBox1 = New System.Windows.Forms.ListBox()
        Me.Button4 = New System.Windows.Forms.Button()
        Me.Button3 = New System.Windows.Forms.Button()
        Me.Label3 = New System.Windows.Forms.Label()
        Me.TextBox1 = New System.Windows.Forms.TextBox()
        Me.GroupBox1.SuspendLayout()
        Me.SuspendLayout()
        '
        'GroupBox1
        '
        Me.GroupBox1.Controls.AddRange(New System.Windows.Forms.Control() {Me.Button2, Me.Button1, Me.Label2, Me.Label1, Me.ListBox2, Me.ListBox1})
        Me.GroupBox1.Location = New System.Drawing.Point(8, 0)
        Me.GroupBox1.Name = "GroupBox1"
        Me.GroupBox1.Size = New System.Drawing.Size(392, 264)
        Me.GroupBox1.TabIndex = 0
        Me.GroupBox1.TabStop = False
        '
        'Button2
        '
        Me.Button2.FlatStyle = System.Windows.Forms.FlatStyle.Flat
        Me.Button2.ForeColor = System.Drawing.Color.Navy
        Me.Button2.Location = New System.Drawing.Point(176, 232)
        Me.Button2.Name = "Button2"
        Me.Button2.Size = New System.Drawing.Size(56, 24)
        Me.Button2.TabIndex = 5
        Me.Button2.Text = "<<"
        '
        'Button1
        '
        Me.Button1.FlatStyle = System.Windows.Forms.FlatStyle.Flat
        Me.Button1.ForeColor = System.Drawing.Color.Navy
        Me.Button1.Location = New System.Drawing.Point(176, 200)
        Me.Button1.Name = "Button1"
        Me.Button1.Size = New System.Drawing.Size(56, 24)
        Me.Button1.TabIndex = 4
        Me.Button1.Text = ">>"
        '
        'Label2
        '
        Me.Label2.Location = New System.Drawing.Point(232, 24)
        Me.Label2.Name = "Label2"
        Me.Label2.Size = New System.Drawing.Size(88, 16)
        Me.Label2.TabIndex = 3
        Me.Label2.Text = "您的菜单："
        '
        'Label1
        '
        Me.Label1.Location = New System.Drawing.Point(16, 24)
        Me.Label1.Name = "Label1"
        Me.Label1.Size = New System.Drawing.Size(72, 16)
        Me.Label1.TabIndex = 2
        Me.Label1.Text = "菜单目录："
        '
        'ListBox2
        '
        Me.ListBox2.ItemHeight = 12
        Me.ListBox2.Location = New System.Drawing.Point(240, 48)
        Me.ListBox2.Name = "ListBox2"
        Me.ListBox2.Size = New System.Drawing.Size(144, 208)
        Me.ListBox2.TabIndex = 1
        '
        'ListBox1
        '
        Me.ListBox1.ItemHeight = 12
        Me.ListBox1.Location = New System.Drawing.Point(16, 48)
        Me.ListBox1.Name = "ListBox1"
        Me.ListBox1.Size = New System.Drawing.Size(152, 208)
        Me.ListBox1.TabIndex = 0
        '
        'Button4
        '
        Me.Button4.FlatStyle = System.Windows.Forms.FlatStyle.Flat
        Me.Button4.ForeColor = System.Drawing.Color.Navy
        Me.Button4.Location = New System.Drawing.Point(280, 272)
        Me.Button4.Name = "Button4"
        Me.Button4.Size = New System.Drawing.Size(56, 24)
        Me.Button4.TabIndex = 6
        Me.Button4.Text = "确定"
        '
        'Button3
        '
        Me.Button3.FlatStyle = System.Windows.Forms.FlatStyle.Flat
        Me.Button3.ForeColor = System.Drawing.Color.Navy
        Me.Button3.Location = New System.Drawing.Point(344, 272)
        Me.Button3.Name = "Button3"
        Me.Button3.Size = New System.Drawing.Size(56, 24)
        Me.Button3.TabIndex = 1
        Me.Button3.Text = "取消"
        '
        'Label3
        '
        Me.Label3.ForeColor = System.Drawing.Color.Red
        Me.Label3.Location = New System.Drawing.Point(16, 272)
        Me.Label3.Name = "Label3"
        Me.Label3.Size = New System.Drawing.Size(64, 24)
        Me.Label3.TabIndex = 2
        Me.Label3.Text = "账单号："
        Me.Label3.TextAlign = System.Drawing.ContentAlignment.MiddleCenter
        '
        'TextBox1
        '
        Me.TextBox1.Location = New System.Drawing.Point(72, 272)
        Me.TextBox1.Name = "TextBox1"
        Me.TextBox1.Size = New System.Drawing.Size(104, 21)
        Me.TextBox1.TabIndex = 3
        Me.TextBox1.Text = ""
        '
        'Form13
        '
        Me.AutoScaleBaseSize = New System.Drawing.Size(6, 14)
        Me.ClientSize = New System.Drawing.Size(410, 303)
        Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.TextBox1, Me.Label3, Me.Button3, Me.GroupBox1, Me.Button4})
        Me.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedSingle
        Me.Icon = CType(resources.GetObject("$this.Icon"), System.Drawing.Icon)
        Me.Name = "Form13"
        Me.Text = "点菜菜单目录"
        Me.GroupBox1.ResumeLayout(False)
        Me.ResumeLayout(False)

    End Sub

#End Region

    Private Sub Form13_Load(ByVal sender As System.Object, _
    ByVal e As System.EventArgs) Handles MyBase.Load
        Dim strSQL As String
        strSQL = "SELECT menu_id ,menu_name FROM MenuInfo"
        myDS.Clear()
        myDS = GetDataFromDB(strSQL)
        Dim strTemp As String
        Dim count, i As Integer
        count = myDS.Tables(0).Rows.Count
        If count <= 0 Then
            Exit Sub
        End If
        For i = 0 To count - 1
            strTemp = Trim(myDS.Tables(0).Rows(i)("menu_id"))
            strTemp = strTemp & " — " & myDS.Tables(0).Rows(i)("menu_name")
            Me.ListBox1.Items.Add(strTemp)
        Next
    End Sub

    Private Sub Button1_Click(ByVal sender As System.Object, _
    ByVal e As System.EventArgs) Handles Button1.Click
        Dim strtemp As String
        strtemp = Me.ListBox1.SelectedItem
        If strtemp Is Nothing Then Exit Sub
        strtemp = strtemp.Substring(0, strtemp.IndexOf(" — "))
        Me.ListBox2.Items.Add(strtemp)
    End Sub

    Private Sub Button2_Click(ByVal sender As System.Object, _
    ByVal e As System.EventArgs) Handles Button2.Click
        Me.ListBox2.Items.Remove(Me.ListBox2.SelectedItem)
    End Sub

    Private Sub Button3_Click(ByVal sender As System.Object, _
    ByVal e As System.EventArgs) Handles Button3.Click
        Me.Close()
    End Sub

    Private Sub Button4_Click(ByVal sender As System.Object, _
    ByVal e As System.EventArgs) Handles Button4.Click
        If Me.ListBox2.Items.Count = 0 Then
            MsgBox("还没有点菜，请先点菜。", MsgBoxStyle.Exclamation + _
            MsgBoxStyle.OKOnly, "未点菜")
            Exit Sub
        End If
        If Trim(Me.TextBox1.Text) = "" Then
            MsgBox("请输入相应的账单号。", MsgBoxStyle.OKOnly + _
            MsgBoxStyle.Exclamation, "账单号为空")
            Exit Sub
        End If
        Dim sqlstr As String = "SELECT * FROM EnOrder WHERE orderid=" & _
        "'" & Trim(TextBox1.Text) & "'"
        Dim ds As New DataSet()
        ds.Clear()
        ds = GetDataFromDB(sqlstr)
        If ds.Tables(0).Rows.Count = 0 Then
            MsgBox("还没有登记该账单，请先登记账单号。", MsgBoxStyle.Exclamation _
            + MsgBoxStyle.OKOnly, "未登记账单")
            Exit Sub
        End If
        Dim temp As String = ""
        If ds.Tables(0).Rows(0)("svcitem").GetType.ToString <> "System.DBNull" Then
            temp = Trim(ds.Tables(0).Rows(0)("svcitem").ToString)
        Else
            temp = ""
        End If
        Dim i As Integer
        For i = 0 To Me.ListBox2.Items.Count - 1
            temp += Me.ListBox2.Items(i).ToString.Trim & "\"
        Next
        sqlstr = "UPDATE EnOrder SET svcitem ='" & temp & "' " & _
        "WHERE orderid='" & TextBox1.Text.Trim & "'"
        If UpdateData(sqlstr) = True Then
            Me.Close()
        End If

    End Sub

    Private Sub ListBox1_DoubleClick(ByVal sender As Object, _
    ByVal e As System.EventArgs) Handles ListBox1.DoubleClick
        Button1_Click(Nothing, Nothing)
    End Sub
End Class