frmborrow.vb

数据库课程设计。

Public Class frmBorrow
    Inherits System.Windows.Forms.Form
    Private dtData As DataTable
#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 dispose 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 ImageList1 As System.Windows.Forms.ImageList
    Friend WithEvents ToolBar1 As System.Windows.Forms.ToolBar
    Friend WithEvents tbbSave As System.Windows.Forms.ToolBarButton
    Friend WithEvents tbbQuit As System.Windows.Forms.ToolBarButton
    Friend WithEvents tbbExit As System.Windows.Forms.ToolBarButton
    Friend WithEvents GroupBox1 As System.Windows.Forms.GroupBox
    Friend WithEvents GroupBox2 As System.Windows.Forms.GroupBox
    Friend WithEvents Label1 As System.Windows.Forms.Label
    Friend WithEvents Label2 As System.Windows.Forms.Label
    Friend WithEvents Label3 As System.Windows.Forms.Label
    Friend WithEvents Label4 As System.Windows.Forms.Label
    Friend WithEvents Label5 As System.Windows.Forms.Label
    Friend WithEvents Label6 As System.Windows.Forms.Label
    Friend WithEvents dgdList As System.Windows.Forms.DataGrid
    Friend WithEvents rbnReaderCode As System.Windows.Forms.RadioButton
    Friend WithEvents rbnReaderNumber As System.Windows.Forms.RadioButton
    Friend WithEvents rbnCode As System.Windows.Forms.RadioButton
    Friend WithEvents rbnBookNumber As System.Windows.Forms.RadioButton
    Friend WithEvents txbName As System.Windows.Forms.TextBox
    Friend WithEvents txbType As System.Windows.Forms.TextBox
    Friend WithEvents txbCount As System.Windows.Forms.TextBox
    Friend WithEvents txbBook As System.Windows.Forms.TextBox
    Friend WithEvents txbReader As System.Windows.Forms.TextBox
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        Me.components = New System.ComponentModel.Container
        Dim resources As System.Resources.ResourceManager = New System.Resources.ResourceManager(GetType(frmBorrow))
        Me.ImageList1 = New System.Windows.Forms.ImageList(Me.components)
        Me.ToolBar1 = New System.Windows.Forms.ToolBar
        Me.tbbSave = New System.Windows.Forms.ToolBarButton
        Me.tbbQuit = New System.Windows.Forms.ToolBarButton
        Me.tbbExit = New System.Windows.Forms.ToolBarButton
        Me.GroupBox1 = New System.Windows.Forms.GroupBox
        Me.Label4 = New System.Windows.Forms.Label
        Me.txbCount = New System.Windows.Forms.TextBox
        Me.Label3 = New System.Windows.Forms.Label
        Me.txbType = New System.Windows.Forms.TextBox
        Me.Label2 = New System.Windows.Forms.Label
        Me.txbName = New System.Windows.Forms.TextBox
        Me.Label1 = New System.Windows.Forms.Label
        Me.rbnReaderCode = New System.Windows.Forms.RadioButton
        Me.rbnReaderNumber = New System.Windows.Forms.RadioButton
        Me.GroupBox2 = New System.Windows.Forms.GroupBox
        Me.dgdList = New System.Windows.Forms.DataGrid
        Me.Label6 = New System.Windows.Forms.Label
        Me.Label5 = New System.Windows.Forms.Label
        Me.txbBook = New System.Windows.Forms.TextBox
        Me.rbnCode = New System.Windows.Forms.RadioButton
        Me.rbnBookNumber = New System.Windows.Forms.RadioButton
        Me.txbReader = New System.Windows.Forms.TextBox
        Me.GroupBox1.SuspendLayout()
        Me.GroupBox2.SuspendLayout()
        CType(Me.dgdList, System.ComponentModel.ISupportInitialize).BeginInit()
        Me.SuspendLayout()
        '
        'ImageList1
        '
        Me.ImageList1.ImageSize = New System.Drawing.Size(16, 16)
        Me.ImageList1.ImageStream = CType(resources.GetObject("ImageList1.ImageStream"), System.Windows.Forms.ImageListStreamer)
        Me.ImageList1.TransparentColor = System.Drawing.Color.Transparent
        '
        'ToolBar1
        '
        Me.ToolBar1.Buttons.AddRange(New System.Windows.Forms.ToolBarButton() {Me.tbbSave, Me.tbbQuit, Me.tbbExit})
        Me.ToolBar1.DropDownArrows = True
        Me.ToolBar1.ImageList = Me.ImageList1
        Me.ToolBar1.Location = New System.Drawing.Point(0, 0)
        Me.ToolBar1.Name = "ToolBar1"
        Me.ToolBar1.ShowToolTips = True
        Me.ToolBar1.Size = New System.Drawing.Size(688, 41)
        Me.ToolBar1.TabIndex = 0
        '
        'tbbSave
        '
        Me.tbbSave.ImageIndex = 0
        Me.tbbSave.Text = "确定借书"
        '
        'tbbQuit
        '
        Me.tbbQuit.ImageIndex = 1
        Me.tbbQuit.Text = "取消借书"
        '
        'tbbExit
        '
        Me.tbbExit.ImageIndex = 2
        Me.tbbExit.Text = "退出"
        '
        'GroupBox1
        '
        Me.GroupBox1.Controls.Add(Me.Label4)
        Me.GroupBox1.Controls.Add(Me.txbCount)
        Me.GroupBox1.Controls.Add(Me.Label3)
        Me.GroupBox1.Controls.Add(Me.txbType)
        Me.GroupBox1.Controls.Add(Me.Label2)
        Me.GroupBox1.Controls.Add(Me.txbName)
        Me.GroupBox1.Controls.Add(Me.Label1)
        Me.GroupBox1.Controls.Add(Me.txbReader)
        Me.GroupBox1.Controls.Add(Me.rbnReaderCode)
        Me.GroupBox1.Controls.Add(Me.rbnReaderNumber)
        Me.GroupBox1.Dock = System.Windows.Forms.DockStyle.Top
        Me.GroupBox1.Location = New System.Drawing.Point(0, 41)
        Me.GroupBox1.Name = "GroupBox1"
        Me.GroupBox1.Size = New System.Drawing.Size(688, 71)
        Me.GroupBox1.TabIndex = 1
        Me.GroupBox1.TabStop = False
        Me.GroupBox1.Text = "读者信息（请按照 条形码 或者编号 输入读者信息后回车，该功能这么实现主要是演示如何用扫描枪管理图书馆的业务）"
        '
        'Label4
        '
        Me.Label4.Location = New System.Drawing.Point(496, 35)
        Me.Label4.Name = "Label4"
        Me.Label4.Size = New System.Drawing.Size(56, 16)
        Me.Label4.TabIndex = 9
        Me.Label4.Text = "可借册数"
        '
        'txbCount
        '
        Me.txbCount.Location = New System.Drawing.Point(552, 30)
        Me.txbCount.Name = "txbCount"
        Me.txbCount.Size = New System.Drawing.Size(56, 21)
        Me.txbCount.TabIndex = 8
        Me.txbCount.Text = ""
        '
        'Label3
        '
        Me.Label3.Location = New System.Drawing.Point(400, 35)
        Me.Label3.Name = "Label3"
        Me.Label3.Size = New System.Drawing.Size(32, 16)
        Me.Label3.TabIndex = 7
        Me.Label3.Text = "类型"
        '
        'txbType
        '
        Me.txbType.Location = New System.Drawing.Point(432, 30)
        Me.txbType.Name = "txbType"
        Me.txbType.Size = New System.Drawing.Size(56, 21)
        Me.txbType.TabIndex = 6
        Me.txbType.Text = ""
        '
        'Label2
        '
        Me.Label2.Location = New System.Drawing.Point(288, 35)
        Me.Label2.Name = "Label2"
        Me.Label2.Size = New System.Drawing.Size(32, 16)
        Me.Label2.TabIndex = 5
        Me.Label2.Text = "姓名"
        '
        'txbName
        '
        Me.txbName.Location = New System.Drawing.Point(320, 30)
        Me.txbName.Name = "txbName"
        Me.txbName.Size = New System.Drawing.Size(56, 21)
        Me.txbName.TabIndex = 4
        Me.txbName.Text = ""
        '
        'Label1
        '
        Me.Label1.Location = New System.Drawing.Point(192, 37)
        Me.Label1.Name = "Label1"
        Me.Label1.Size = New System.Drawing.Size(80, 16)
        Me.Label1.TabIndex = 3
        Me.Label1.Text = "回车确认输入"
        '
        'rbnReaderCode
        '
        Me.rbnReaderCode.Location = New System.Drawing.Point(16, 41)
        Me.rbnReaderCode.Name = "rbnReaderCode"
        Me.rbnReaderCode.Size = New System.Drawing.Size(64, 24)
        Me.rbnReaderCode.TabIndex = 1
        Me.rbnReaderCode.Text = "条形码"
        '
        'rbnReaderNumber
        '
        Me.rbnReaderNumber.Checked = True
        Me.rbnReaderNumber.Location = New System.Drawing.Point(16, 16)
        Me.rbnReaderNumber.Name = "rbnReaderNumber"
        Me.rbnReaderNumber.Size = New System.Drawing.Size(64, 24)
        Me.rbnReaderNumber.TabIndex = 0
        Me.rbnReaderNumber.TabStop = True
        Me.rbnReaderNumber.Text = "编号"
        '
        'GroupBox2
        '
        Me.GroupBox2.Controls.Add(Me.dgdList)
        Me.GroupBox2.Controls.Add(Me.Label6)
        Me.GroupBox2.Controls.Add(Me.Label5)
        Me.GroupBox2.Controls.Add(Me.txbBook)
        Me.GroupBox2.Controls.Add(Me.rbnCode)
        Me.GroupBox2.Controls.Add(Me.rbnBookNumber)
        Me.GroupBox2.Dock = System.Windows.Forms.DockStyle.Fill
        Me.GroupBox2.Location = New System.Drawing.Point(0, 112)
        Me.GroupBox2.Name = "GroupBox2"
        Me.GroupBox2.Size = New System.Drawing.Size(688, 161)
        Me.GroupBox2.TabIndex = 2
        Me.GroupBox2.TabStop = False
        Me.GroupBox2.Text = "借阅图书信息（请按照 条形码 或者 编号 输入图书信息后回车）"
        '
        'dgdList
        '
        Me.dgdList.Anchor = CType((((System.Windows.Forms.AnchorStyles.Top Or System.Windows.Forms.AnchorStyles.Bottom) _
                    Or System.Windows.Forms.AnchorStyles.Left) _
                    Or System.Windows.Forms.AnchorStyles.Right), System.Windows.Forms.AnchorStyles)
        Me.dgdList.CaptionVisible = False
        Me.dgdList.DataMember = ""
        Me.dgdList.HeaderForeColor = System.Drawing.SystemColors.ControlText
        Me.dgdList.Location = New System.Drawing.Point(8, 80)
        Me.dgdList.Name = "dgdList"
        Me.dgdList.Size = New System.Drawing.Size(680, 72)
        Me.dgdList.TabIndex = 9
        '
        'Label6
        '
        Me.Label6.Location = New System.Drawing.Point(280, 36)
        Me.Label6.Name = "Label6"
        Me.Label6.Size = New System.Drawing.Size(328, 32)
        Me.Label6.TabIndex = 8
        Me.Label6.Text = "说明：借阅数量不可超过可借数量，借阅日期取当前日期，应还日期根究借阅日期和图书类型中的可借天数自动计算。"
        '
        'Label5
        '