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

Public Class Form6
    Inherits System.Windows.Forms.Form

#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 Button2 As System.Windows.Forms.Button
    Friend WithEvents Button3 As System.Windows.Forms.Button
    Friend WithEvents Label1 As System.Windows.Forms.Label
    Friend WithEvents TextBox1 As System.Windows.Forms.TextBox
    Friend WithEvents Label2 As System.Windows.Forms.Label
    Friend WithEvents TextBox2 As System.Windows.Forms.TextBox
    Friend WithEvents Label4 As System.Windows.Forms.Label
    Friend WithEvents ComboBox1 As System.Windows.Forms.ComboBox
    Friend WithEvents Label5 As System.Windows.Forms.Label
    Friend WithEvents DateTimePicker1 As System.Windows.Forms.DateTimePicker
    Friend WithEvents ListBox1 As System.Windows.Forms.ListBox
    Friend WithEvents Label3 As System.Windows.Forms.Label
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        Me.GroupBox1 = New System.Windows.Forms.GroupBox()
        Me.Label3 = New System.Windows.Forms.Label()
        Me.ListBox1 = New System.Windows.Forms.ListBox()
        Me.DateTimePicker1 = New System.Windows.Forms.DateTimePicker()
        Me.Label5 = New System.Windows.Forms.Label()
        Me.ComboBox1 = New System.Windows.Forms.ComboBox()
        Me.Label4 = New System.Windows.Forms.Label()
        Me.TextBox2 = New System.Windows.Forms.TextBox()
        Me.Label2 = New System.Windows.Forms.Label()
        Me.TextBox1 = New System.Windows.Forms.TextBox()
        Me.Label1 = New System.Windows.Forms.Label()
        Me.Button1 = New System.Windows.Forms.Button()
        Me.Button2 = New System.Windows.Forms.Button()
        Me.Button3 = New System.Windows.Forms.Button()
        Me.GroupBox1.SuspendLayout()
        Me.SuspendLayout()
        '
        'GroupBox1
        '
        Me.GroupBox1.Controls.AddRange(New System.Windows.Forms.Control() {Me.Label3, Me.ListBox1, Me.DateTimePicker1, Me.Label5, Me.ComboBox1, Me.Label4, Me.TextBox2, Me.Label2, Me.TextBox1, Me.Label1})
        Me.GroupBox1.Location = New System.Drawing.Point(8, 8)
        Me.GroupBox1.Name = "GroupBox1"
        Me.GroupBox1.Size = New System.Drawing.Size(360, 256)
        Me.GroupBox1.TabIndex = 0
        Me.GroupBox1.TabStop = False
        Me.GroupBox1.Text = "訂單信息"
        '
        'Label3
        '
        Me.Label3.Location = New System.Drawing.Point(8, 24)
        Me.Label3.Name = "Label3"
        Me.Label3.Size = New System.Drawing.Size(80, 24)
        Me.Label3.TabIndex = 13
        Me.Label3.Text = "已有訂單"
        '
        'ListBox1
        '
        Me.ListBox1.ItemHeight = 12
        Me.ListBox1.Location = New System.Drawing.Point(8, 48)
        Me.ListBox1.Name = "ListBox1"
        Me.ListBox1.Size = New System.Drawing.Size(152, 196)
        Me.ListBox1.TabIndex = 12
        '
        'DateTimePicker1
        '
        Me.DateTimePicker1.Location = New System.Drawing.Point(176, 136)
        Me.DateTimePicker1.Name = "DateTimePicker1"
        Me.DateTimePicker1.Size = New System.Drawing.Size(168, 21)
        Me.DateTimePicker1.TabIndex = 11
        '
        'Label5
        '
        Me.Label5.Location = New System.Drawing.Point(176, 160)
        Me.Label5.Name = "Label5"
        Me.Label5.Size = New System.Drawing.Size(72, 21)
        Me.Label5.TabIndex = 9
        Me.Label5.Text = "桌號列表"
        Me.Label5.TextAlign = System.Drawing.ContentAlignment.MiddleLeft
        '
        'ComboBox1
        '
        Me.ComboBox1.Items.AddRange(New Object() {"預定訂單"})
        Me.ComboBox1.Location = New System.Drawing.Point(176, 88)
        Me.ComboBox1.Name = "ComboBox1"
        Me.ComboBox1.Size = New System.Drawing.Size(168, 20)
        Me.ComboBox1.TabIndex = 8
        Me.ComboBox1.Text = "預定訂單"
        '
        'Label4
        '
        Me.Label4.Location = New System.Drawing.Point(176, 112)
        Me.Label4.Name = "Label4"
        Me.Label4.Size = New System.Drawing.Size(72, 21)
        Me.Label4.TabIndex = 6
        Me.Label4.Text = "執(zhí)行日期"
        Me.Label4.TextAlign = System.Drawing.ContentAlignment.MiddleLeft
        '
        'TextBox2
        '
        Me.TextBox2.Location = New System.Drawing.Point(176, 184)
        Me.TextBox2.Multiline = True
        Me.TextBox2.Name = "TextBox2"
        Me.TextBox2.Size = New System.Drawing.Size(168, 64)
        Me.TextBox2.TabIndex = 3
        Me.TextBox2.Text = ""
        '
        'Label2
        '
        Me.Label2.Location = New System.Drawing.Point(176, 64)
        Me.Label2.Name = "Label2"
        Me.Label2.Size = New System.Drawing.Size(72, 21)
        Me.Label2.TabIndex = 2
        Me.Label2.Text = "訂單類型"
        Me.Label2.TextAlign = System.Drawing.ContentAlignment.MiddleLeft
        '
        'TextBox1
        '
        Me.TextBox1.Location = New System.Drawing.Point(176, 40)
        Me.TextBox1.Name = "TextBox1"
        Me.TextBox1.Size = New System.Drawing.Size(168, 21)
        Me.TextBox1.TabIndex = 1
        Me.TextBox1.Text = ""
        '
        'Label1
        '
        Me.Label1.Location = New System.Drawing.Point(176, 16)
        Me.Label1.Name = "Label1"
        Me.Label1.Size = New System.Drawing.Size(72, 21)
        Me.Label1.TabIndex = 0
        Me.Label1.Text = "訂單編碼"
        Me.Label1.TextAlign = System.Drawing.ContentAlignment.MiddleLeft
        '
        'Button1
        '
        Me.Button1.FlatStyle = System.Windows.Forms.FlatStyle.Flat
        Me.Button1.ForeColor = System.Drawing.Color.Navy
        Me.Button1.Location = New System.Drawing.Point(184, 272)
        Me.Button1.Name = "Button1"
        Me.Button1.Size = New System.Drawing.Size(56, 32)
        Me.Button1.TabIndex = 1
        Me.Button1.Text = "添加"
        '
        'Button2
        '
        Me.Button2.FlatStyle = System.Windows.Forms.FlatStyle.Flat
        Me.Button2.ForeColor = System.Drawing.Color.Navy
        Me.Button2.Location = New System.Drawing.Point(248, 272)
        Me.Button2.Name = "Button2"
        Me.Button2.Size = New System.Drawing.Size(56, 32)
        Me.Button2.TabIndex = 2
        Me.Button2.Text = "刪除"
        '
        'Button3
        '
        Me.Button3.FlatStyle = System.Windows.Forms.FlatStyle.Flat
        Me.Button3.ForeColor = System.Drawing.Color.Navy
        Me.Button3.Location = New System.Drawing.Point(312, 272)
        Me.Button3.Name = "Button3"
        Me.Button3.Size = New System.Drawing.Size(56, 32)
        Me.Button3.TabIndex = 3
        Me.Button3.Text = "更新"
        '
        'Form6
        '
        Me.AutoScaleBaseSize = New System.Drawing.Size(6, 14)
        Me.ClientSize = New System.Drawing.Size(376, 309)
        Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.Button3, Me.Button2, Me.Button1, Me.GroupBox1})
        Me.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedSingle
        Me.Name = "Form6"
        Me.Text = "預定訂單"
        Me.GroupBox1.ResumeLayout(False)
        Me.ResumeLayout(False)

    End Sub

#End Region

    Private Sub Button1_Click(ByVal sender As System.Object, _
    ByVal e As System.EventArgs) Handles Button1.Click
        Dim sqlstr As String
        Dim order As New PreOrder()
        order = GetDataFromForm()
        If order.id = "" Then
            Exit Sub
        End If
        If order.num = "" Then
            Exit Sub
        End If
        sqlstr = "INSERT INTO OrderInfo (orderid,orderstyle," & _
        "orderdate,requiredate,tbnum) VALUES ('" & order.id & "'," & _
        "'" & order.style & "','" & CDate(Now.ToShortDateString) & "'," & _
        "'" & order.rdate & "','" & order.num & "')"
        UpdateData(sqlstr)
        GetAllData()
        ShowData(0)
        AlterStatus(True)
    End Sub

    Public Sub GetAllData()
        Dim sqlstr As String
        Dim ds As New DataSet()
        ds.Clear()
        Me.ListBox1.Items.Clear()
        sqlstr = "SELECT orderid FROM OrderInfo WHERE orderstyle='預定'"
        ds = GetDataFromDB(sqlstr)
        Dim i As Integer
        Dim temp As String
        If Not ds Is Nothing Then
            For i = 0 To ds.Tables(0).Rows.Count - 1
                temp = Trim(ds.Tables(0).Rows(i)("orderid").ToString)
                Me.ListBox1.Items.Add(temp)
            Next
        End If
    End Sub

    Public Function GetDataFromForm() As PreOrder
        Dim order As New PreOrder()
        order.id = Trim(Me.TextBox1.Text)
        order.rdate = CDate(Me.DateTimePicker1.Value.ToShortDateString)
        order.num = Trim(Me.TextBox2.Text)
        Return order
    End Function

    Private Sub Button2_Click(ByVal sender As System.Object, _
    ByVal e As System.EventArgs) Handles Button2.Click
        Dim sqlstr As String
        sqlstr = "DELETE FROM OrderInfo WHERE orderid=" & _
        "'" & Me.TextBox1.Text.Trim & "'"
        UpdateData(sqlstr)
        AlterStatus(False)
    End Sub

    Private Sub Button3_Click(ByVal sender As System.Object, _
    ByVal e As System.EventArgs) Handles Button3.Click
        Dim order As New PreOrder()
        order = GetDataFromForm()
        If order.id = "" Then
            Exit Sub
        End If
        Dim sqlstr As String
        With order
            sqlstr = "UPDATE OrderInfo SET requiredate ='" & .rdate & "'," & _
            "tbnum='" & .num & "' WHERE orderid='" & .id & "'"
        End With
        UpdateData(sqlstr)
        AlterStatus(True)
    End Sub

    Private Sub Form6_Load(ByVal sender As System.Object, _
    ByVal e As System.EventArgs) Handles MyBase.Load
        GetAllData()
        If Me.ListBox1.Items.Count > 0 Then
            Me.ListBox1.SetSelected(0, True)
            ShowData(0)
        End If
    End Sub

    Public Function ShowData(ByVal index As Integer)
        If index >= 0 Then
            Dim order As New PreOrder()
            order = getOrder(Trim(Me.ListBox1.SelectedItem.ToString))
            Me.TextBox1.Text = order.id
            Me.DateTimePicker1.Value = order.rdate
            Me.TextBox2.Text = order.num
        End If
    End Function

    Public Function getOrder(ByVal orderid As String) As PreOrder
        Dim sqlstr As String
        Dim order As New PreOrder()
        sqlstr = "SELECT * FROM OrderInfo WHERE orderid='" & orderid & "'"
        Dim ds As New DataSet()
        ds.Clear()
        ds = GetDataFromDB(sqlstr)
        If Not ds Is Nothing Then
            order.id = ds.Tables(0).Rows(0)("orderid")
            order.rdate = ds.Tables(0).Rows(0)("requiredate")
            order.num = ds.Tables(0).Rows(0)("tbnum")
        End If
        Return order
    End Function

    Private Sub ListBox1_SelectedIndexChanged(ByVal sender As Object, _
    ByVal e As System.EventArgs) Handles ListBox1.SelectedIndexChanged
        Dim i As Integer
        i = Me.ListBox1.SelectedIndex
        If i >= 0 Then
            ShowData(i)
        End If
    End Sub

    Public Sub AlterStatus(ByVal add As Boolean)
        Dim temp As String
        Dim str As String
        Dim num As Integer
        temp = Trim(Me.TextBox2.Text)
        Do While temp.Length > 0
            If temp.Length = 1 Then
                num = CInt(temp)
            Else
                str = temp.Substring(0, temp.IndexOf(","))
                num = CInt(str.Trim)
                temp = temp.Remove(0, str.Length + 1)
            End If
            Dim sqlstr As String
            If add = True Then
                sqlstr = "UPDATE TableInfo SET status='被預定'" & _
                " WHERE tablenum='" & num & "'"
            Else
                sqlstr = "UPDATE TableInfo SET status='空閑' " & _
                "WHERE tablenum='" & num & "'"
            End If
            UpdateData(sqlstr)
        Loop
    End Sub

End Class

Public Class PreOrder
    Public id As String
    Public Const style As String = "預定"
    Public rdate As Date
    Public num As String
End Class