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

Public Class Form5
    Inherits System.Windows.Forms.Form
    Dim sum As Double
    Dim num As Double
    Dim dis As Double

#Region " Windows 窗體設計器生成的代碼 "

    Public Sub New()
        MyBase.New()

        '該調用是 Windows 窗體設計器所必需的。
        InitializeComponent()

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

    End Sub

    '窗體重寫處置以清理組件列表。
    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 窗體設計器所必需的
    Private components As System.ComponentModel.IContainer

    '注意：以下過程是 Windows 窗體設計器所必需的
    '可以使用 Windows 窗體設計器修改此過程。
    '不要使用代碼編輯器修改它。
    Friend WithEvents GroupBox1 As System.Windows.Forms.GroupBox
    Friend WithEvents Button1 As System.Windows.Forms.Button
    Friend WithEvents Label1 As System.Windows.Forms.Label
    Friend WithEvents Label2 As System.Windows.Forms.Label
    Friend WithEvents ComboBox1 As System.Windows.Forms.ComboBox
    Friend WithEvents TextBox1 As System.Windows.Forms.TextBox
    Friend WithEvents TextBox2 As System.Windows.Forms.TextBox
    Friend WithEvents Label3 As System.Windows.Forms.Label
    Friend WithEvents Label4 As System.Windows.Forms.Label
    Friend WithEvents TextBox3 As System.Windows.Forms.TextBox
    Friend WithEvents Label5 As System.Windows.Forms.Label
    Friend WithEvents TextBox4 As System.Windows.Forms.TextBox
    Friend WithEvents CheckBox1 As System.Windows.Forms.CheckBox
    Friend WithEvents Label6 As System.Windows.Forms.Label
    Friend WithEvents Label7 As System.Windows.Forms.Label
    Friend WithEvents Label8 As System.Windows.Forms.Label
    Friend WithEvents TextBox5 As System.Windows.Forms.TextBox
    Friend WithEvents TextBox6 As System.Windows.Forms.TextBox
    Friend WithEvents Button2 As System.Windows.Forms.Button
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        Dim resources As System.Resources.ResourceManager = New System.Resources.ResourceManager(GetType(Form5))
        Me.GroupBox1 = New System.Windows.Forms.GroupBox()
        Me.TextBox6 = New System.Windows.Forms.TextBox()
        Me.TextBox5 = New System.Windows.Forms.TextBox()
        Me.Label8 = New System.Windows.Forms.Label()
        Me.Label7 = New System.Windows.Forms.Label()
        Me.Label6 = New System.Windows.Forms.Label()
        Me.CheckBox1 = New System.Windows.Forms.CheckBox()
        Me.TextBox4 = New System.Windows.Forms.TextBox()
        Me.Label5 = New System.Windows.Forms.Label()
        Me.TextBox3 = New System.Windows.Forms.TextBox()
        Me.Label4 = New System.Windows.Forms.Label()
        Me.Label3 = New System.Windows.Forms.Label()
        Me.TextBox2 = New System.Windows.Forms.TextBox()
        Me.Button2 = New System.Windows.Forms.Button()
        Me.TextBox1 = New System.Windows.Forms.TextBox()
        Me.ComboBox1 = New System.Windows.Forms.ComboBox()
        Me.Label2 = New System.Windows.Forms.Label()
        Me.Label1 = New System.Windows.Forms.Label()
        Me.Button1 = New System.Windows.Forms.Button()
        Me.GroupBox1.SuspendLayout()
        Me.SuspendLayout()
        '
        'GroupBox1
        '
        Me.GroupBox1.Controls.AddRange(New System.Windows.Forms.Control() {Me.TextBox6, Me.TextBox5, Me.Label8, Me.Label7, Me.Label6, Me.CheckBox1, Me.TextBox4, Me.Label5, Me.TextBox3, Me.Label4, Me.Label3, Me.TextBox2, Me.Button2, Me.TextBox1, Me.ComboBox1, Me.Label2, Me.Label1})
        Me.GroupBox1.Location = New System.Drawing.Point(8, 8)
        Me.GroupBox1.Name = "GroupBox1"
        Me.GroupBox1.Size = New System.Drawing.Size(288, 272)
        Me.GroupBox1.TabIndex = 0
        Me.GroupBox1.TabStop = False
        Me.GroupBox1.Text = "結賬信息"
        '
        'TextBox6
        '
        Me.TextBox6.BackColor = System.Drawing.SystemColors.Info
        Me.TextBox6.ForeColor = System.Drawing.Color.Red
        Me.TextBox6.Location = New System.Drawing.Point(88, 216)
        Me.TextBox6.Name = "TextBox6"
        Me.TextBox6.ReadOnly = True
        Me.TextBox6.Size = New System.Drawing.Size(184, 21)
        Me.TextBox6.TabIndex = 16
        Me.TextBox6.Text = ""
        Me.TextBox6.TextAlign = System.Windows.Forms.HorizontalAlignment.Center
        '
        'TextBox5
        '
        Me.TextBox5.ForeColor = System.Drawing.SystemColors.HotTrack
        Me.TextBox5.Location = New System.Drawing.Point(88, 184)
        Me.TextBox5.Name = "TextBox5"
        Me.TextBox5.Size = New System.Drawing.Size(184, 21)
        Me.TextBox5.TabIndex = 15
        Me.TextBox5.Text = ""
        Me.TextBox5.TextAlign = System.Windows.Forms.HorizontalAlignment.Center
        '
        'Label8
        '
        Me.Label8.ForeColor = System.Drawing.Color.Blue
        Me.Label8.Location = New System.Drawing.Point(40, 216)
        Me.Label8.Name = "Label8"
        Me.Label8.Size = New System.Drawing.Size(48, 21)
        Me.Label8.TabIndex = 14
        Me.Label8.Text = "找零"
        Me.Label8.TextAlign = System.Drawing.ContentAlignment.MiddleCenter
        '
        'Label7
        '
        Me.Label7.ForeColor = System.Drawing.Color.Blue
        Me.Label7.Location = New System.Drawing.Point(24, 184)
        Me.Label7.Name = "Label7"
        Me.Label7.Size = New System.Drawing.Size(56, 21)
        Me.Label7.TabIndex = 13
        Me.Label7.Text = "實際支付"
        Me.Label7.TextAlign = System.Drawing.ContentAlignment.MiddleLeft
        '
        'Label6
        '
        Me.Label6.ForeColor = System.Drawing.Color.Navy
        Me.Label6.Location = New System.Drawing.Point(168, 240)
        Me.Label6.Name = "Label6"
        Me.Label6.Size = New System.Drawing.Size(104, 24)
        Me.Label6.TabIndex = 12
        Me.Label6.Text = "加收 5% 的票據稅"
        Me.Label6.TextAlign = System.Drawing.ContentAlignment.MiddleCenter
        '
        'CheckBox1
        '
        Me.CheckBox1.Location = New System.Drawing.Point(80, 240)
        Me.CheckBox1.Name = "CheckBox1"
        Me.CheckBox1.Size = New System.Drawing.Size(80, 24)
        Me.CheckBox1.TabIndex = 11
        Me.CheckBox1.Text = "開具發票"
        Me.CheckBox1.TextAlign = System.Drawing.ContentAlignment.MiddleCenter
        '
        'TextBox4
        '
        Me.TextBox4.BackColor = System.Drawing.SystemColors.Info
        Me.TextBox4.ForeColor = System.Drawing.Color.Red
        Me.TextBox4.Location = New System.Drawing.Point(88, 152)
        Me.TextBox4.Name = "TextBox4"
        Me.TextBox4.ReadOnly = True
        Me.TextBox4.Size = New System.Drawing.Size(184, 21)
        Me.TextBox4.TabIndex = 10
        Me.TextBox4.Text = ""
        Me.TextBox4.TextAlign = System.Windows.Forms.HorizontalAlignment.Center
        '
        'Label5
        '
        Me.Label5.Location = New System.Drawing.Point(16, 152)
        Me.Label5.Name = "Label5"
        Me.Label5.Size = New System.Drawing.Size(64, 21)
        Me.Label5.TabIndex = 9
        Me.Label5.Text = "應付金額"
        Me.Label5.TextAlign = System.Drawing.ContentAlignment.MiddleRight
        '
        'TextBox3
        '
        Me.TextBox3.Location = New System.Drawing.Point(88, 120)
        Me.TextBox3.Name = "TextBox3"
        Me.TextBox3.Size = New System.Drawing.Size(184, 21)
        Me.TextBox3.TabIndex = 8
        Me.TextBox3.Text = "0"
        Me.TextBox3.TextAlign = System.Windows.Forms.HorizontalAlignment.Center
        '
        'Label4
        '
        Me.Label4.Location = New System.Drawing.Point(16, 120)
        Me.Label4.Name = "Label4"
        Me.Label4.Size = New System.Drawing.Size(64, 21)
        Me.Label4.TabIndex = 7
        Me.Label4.Text = "優惠折扣"
        Me.Label4.TextAlign = System.Drawing.ContentAlignment.MiddleRight
        '
        'Label3
        '
        Me.Label3.Location = New System.Drawing.Point(8, 88)
        Me.Label3.Name = "Label3"
        Me.Label3.Size = New System.Drawing.Size(72, 21)
        Me.Label3.TabIndex = 6
        Me.Label3.Text = "支票號/卡號"
        Me.Label3.TextAlign = System.Drawing.ContentAlignment.MiddleRight
        '
        'TextBox2
        '
        Me.TextBox2.BackColor = System.Drawing.SystemColors.Info
        Me.TextBox2.Location = New System.Drawing.Point(88, 88)
        Me.TextBox2.Name = "TextBox2"
        Me.TextBox2.ReadOnly = True
        Me.TextBox2.Size = New System.Drawing.Size(184, 21)
        Me.TextBox2.TabIndex = 5
        Me.TextBox2.Text = ""
        Me.TextBox2.TextAlign = System.Windows.Forms.HorizontalAlignment.Center
        '
        'Button2
        '
        Me.Button2.FlatStyle = System.Windows.Forms.FlatStyle.Popup
        Me.Button2.ForeColor = System.Drawing.Color.Navy
        Me.Button2.Location = New System.Drawing.Point(224, 21)
        Me.Button2.Name = "Button2"
        Me.Button2.Size = New System.Drawing.Size(48, 24)
        Me.Button2.TabIndex = 4
        Me.Button2.Text = "確定"
        '
        'TextBox1
        '
        Me.TextBox1.Location = New System.Drawing.Point(88, 24)
        Me.TextBox1.Name = "TextBox1"
        Me.TextBox1.Size = New System.Drawing.Size(128, 21)
        Me.TextBox1.TabIndex = 3
        Me.TextBox1.Text = ""
        '
        'ComboBox1
        '
        Me.ComboBox1.Items.AddRange(New Object() {"現金", "支票", "信用卡"})
        Me.ComboBox1.Location = New System.Drawing.Point(88, 56)
        Me.ComboBox1.Name = "ComboBox1"
        Me.ComboBox1.Size = New System.Drawing.Size(184, 20)
        Me.ComboBox1.TabIndex = 2
        Me.ComboBox1.Text = "現金"
        '
        'Label2
        '
        Me.Label2.Location = New System.Drawing.Point(16, 55)
        Me.Label2.Name = "Label2"
        Me.Label2.Size = New System.Drawing.Size(64, 21)
        Me.Label2.TabIndex = 1
        Me.Label2.Text = "支付方式"
        Me.Label2.TextAlign = System.Drawing.ContentAlignment.MiddleRight
        '
        'Label1
        '
        Me.Label1.ForeColor = System.Drawing.Color.Blue
        Me.Label1.Location = New System.Drawing.Point(16, 24)
        Me.Label1.Name = "Label1"
        Me.Label1.Size = New System.Drawing.Size(64, 21)
        Me.Label1.TabIndex = 0
        Me.Label1.Text = "賬單編碼"
        Me.Label1.TextAlign = System.Drawing.ContentAlignment.MiddleRight
        '
        'Button1
        '
        Me.Button1.FlatStyle = System.Windows.Forms.FlatStyle.Popup
        Me.Button1.ForeColor = System.Drawing.Color.Navy
        Me.Button1.Location = New System.Drawing.Point(240, 288)
        Me.Button1.Name = "Button1"
        Me.Button1.Size = New System.Drawing.Size(56, 24)
        Me.Button1.TabIndex = 1
        Me.Button1.Text = "結賬"
        '
        'Form5
        '
        Me.AutoScaleBaseSize = New System.Drawing.Size(6, 14)
        Me.ClientSize = New System.Drawing.Size(304, 319)
        Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.Button1, Me.GroupBox1})
        Me.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedSingle
        Me.Icon = CType(resources.GetObject("$this.Icon"), System.Drawing.Icon)
        Me.Name = "Form5"
        Me.Text = "結賬臺"
        Me.GroupBox1.ResumeLayout(False)
        Me.ResumeLayout(False)

    End Sub

#End Region

    Private Sub ComboBox1_SelectedIndexChanged(ByVal sender As System.Object, _
    ByVal e As System.EventArgs) Handles ComboBox1.SelectedIndexChanged
        If Me.ComboBox1.SelectedIndex = 0 Then
            Me.TextBox2.ReadOnly = True
        Else
            Me.TextBox2.ReadOnly = False
        End If
    End Sub

    Private Sub Form5_Load(ByVal sender As System.Object, _
    ByVal e As System.EventArgs) Handles MyBase.Load
        Me.ComboBox1.SelectedIndex = 0
    End Sub

    Private Sub CheckBox1_CheckedChanged(ByVal sender As System.Object, _
    ByVal e As System.EventArgs) Handles CheckBox1.CheckedChanged
        If Me.CheckBox1.Checked = True Then
            Me.TextBox4.Text = Format(Val(Me.TextBox4.Text) * 1.05, "###,###,###.##")
        Else
            Me.TextBox4.Text = Format(Val(Me.TextBox4.Text) / 1.05, "###,###,###.##")
        End If
    End Sub

    Private Sub Button2_Click(ByVal sender As System.Object, _
    ByVal e As System.EventArgs) Handles Button2.Click
        If Trim(Me.TextBox1.Text) = "" Then
            Exit Sub
        End If
        sum = 0
        GetMenuList()
        Me.TextBox4.Text = sum
    End Sub

    Public Sub GetMenuList()
        Dim sqlstr As String
        Dim temp As String
        sqlstr = "SELECT svcitem FROM EnOrder WHERE orderid=" & _
        " '" & Trim(TextBox1.Text) & "'"
        Dim ds As New DataSet()
        ds.Clear()
        ds = GetDataFromDB(sqlstr)
        temp = Trim(ds.Tables(0).Rows(0)("svcitem").ToString)
        Dim str As String
        Do While temp.Length > 0
            str = temp.Substring(0, temp.IndexOf("\"))
            temp = temp.Remove(0, str.Length + 1)
            Compute(str)
        Loop
    End Sub

    Public Function Compute(ByVal menuid As String) As Double
        Dim sqlstr As String
        sqlstr = "SELECT menu_name,menu_price,menu_discount " & _
        "FROM MenuInfo WHERE menu_id='" & menuid & "'"
        Dim ds As New DataSet()
        ds.Clear()
        ds = GetDataFromDB(sqlstr)
        num = CDbl(ds.Tables(0).Rows(0)("menu_price"))
        dis = CDbl(ds.Tables(0).Rows(0)("menu_discount"))
        num = num * (1 - dis)
        sum += num
        Return sum
    End Function

    Private Sub TextBox3_TextChanged(ByVal sender As Object, _
    ByVal e As System.EventArgs) Handles TextBox3.TextChanged
        Dim temp As Double
        Dim sum1 As Double
        If Me.TextBox3.Text = "" Then
            temp = 0
        Else
            temp = CDbl(Me.TextBox3.Text)
        End If
        sum1 = sum * (1 - temp)
        Me.TextBox4.Text = Format(sum1, "##########.##")
    End Sub

    Private Sub Button1_Click(ByVal sender As System.Object, _
    ByVal e As System.EventArgs) Handles Button1.Click
        Dim check As Double
        If Me.TextBox5.Text = "" Then
            check = 0
        Else
            check = CDbl(Me.TextBox5.Text)
        End If
        Me.TextBox6.Text = check - CDbl(Me.TextBox4.Text)
        If CDbl(Me.TextBox6.Text) < 0 Then
            Me.TextBox6.ForeColor = Color.Red
        Else
            Me.TextBox6.ForeColor = Color.Blue
        End If
    End Sub
End Class