frm_overdue.vb

图书管理系统 VB加SQL 数据库在文件里的DATA里 进到SQL里附加进去就可以使用了

Imports System.Data.SqlClient

Public Class Frm_Overdue
    Inherits System.Windows.Forms.Form

#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 GroupBox1 As System.Windows.Forms.GroupBox
    Friend WithEvents Label1 As System.Windows.Forms.Label
    Friend WithEvents TextBox1 As System.Windows.Forms.TextBox
    Friend WithEvents Button1 As System.Windows.Forms.Button
    Friend WithEvents DataGrid1 As System.Windows.Forms.DataGrid
    Friend WithEvents Label2 As System.Windows.Forms.Label
    Friend WithEvents GroupBox2 As System.Windows.Forms.GroupBox
    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 Button5 As System.Windows.Forms.Button
    Friend WithEvents ComboBox1 As System.Windows.Forms.ComboBox
    Friend WithEvents Button6 As System.Windows.Forms.Button
    Friend WithEvents Button7 As System.Windows.Forms.Button
    Friend WithEvents Button8 As System.Windows.Forms.Button
    Friend WithEvents Button9 As System.Windows.Forms.Button
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        Me.GroupBox1 = New System.Windows.Forms.GroupBox
        Me.ComboBox1 = New System.Windows.Forms.ComboBox
        Me.Button1 = New System.Windows.Forms.Button
        Me.TextBox1 = New System.Windows.Forms.TextBox
        Me.Label1 = New System.Windows.Forms.Label
        Me.Label2 = New System.Windows.Forms.Label
        Me.DataGrid1 = New System.Windows.Forms.DataGrid
        Me.GroupBox2 = New System.Windows.Forms.GroupBox
        Me.Button2 = New System.Windows.Forms.Button
        Me.Button3 = New System.Windows.Forms.Button
        Me.Button4 = New System.Windows.Forms.Button
        Me.Button5 = New System.Windows.Forms.Button
        Me.Button6 = New System.Windows.Forms.Button
        Me.Button7 = New System.Windows.Forms.Button
        Me.Button8 = New System.Windows.Forms.Button
        Me.Button9 = New System.Windows.Forms.Button
        Me.GroupBox1.SuspendLayout()
        CType(Me.DataGrid1, System.ComponentModel.ISupportInitialize).BeginInit()
        Me.GroupBox2.SuspendLayout()
        Me.SuspendLayout()
        '
        'GroupBox1
        '
        Me.GroupBox1.Anchor = CType(((System.Windows.Forms.AnchorStyles.Top Or System.Windows.Forms.AnchorStyles.Left) _
                    Or System.Windows.Forms.AnchorStyles.Right), System.Windows.Forms.AnchorStyles)
        Me.GroupBox1.Controls.Add(Me.ComboBox1)
        Me.GroupBox1.Controls.Add(Me.Button1)
        Me.GroupBox1.Controls.Add(Me.TextBox1)
        Me.GroupBox1.Controls.Add(Me.Label1)
        Me.GroupBox1.Controls.Add(Me.Label2)
        Me.GroupBox1.Location = New System.Drawing.Point(8, 3)
        Me.GroupBox1.Name = "GroupBox1"
        Me.GroupBox1.Size = New System.Drawing.Size(600, 56)
        Me.GroupBox1.TabIndex = 0
        Me.GroupBox1.TabStop = False
        '
        'ComboBox1
        '
        Me.ComboBox1.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList
        Me.ComboBox1.Items.AddRange(New Object() {"学号", "所借书号", "借阅日期"})
        Me.ComboBox1.Location = New System.Drawing.Point(96, 20)
        Me.ComboBox1.Name = "ComboBox1"
        Me.ComboBox1.Size = New System.Drawing.Size(121, 20)
        Me.ComboBox1.TabIndex = 3
        '
        'Button1
        '
        Me.Button1.Location = New System.Drawing.Point(496, 20)
        Me.Button1.Name = "Button1"
        Me.Button1.TabIndex = 2
        Me.Button1.Text = "查询"
        '
        'TextBox1
        '
        Me.TextBox1.Location = New System.Drawing.Point(328, 20)
        Me.TextBox1.Name = "TextBox1"
        Me.TextBox1.Size = New System.Drawing.Size(128, 21)
        Me.TextBox1.TabIndex = 1
        Me.TextBox1.Text = ""
        '
        'Label1
        '
        Me.Label1.Location = New System.Drawing.Point(24, 20)
        Me.Label1.Name = "Label1"
        Me.Label1.Size = New System.Drawing.Size(72, 23)
        Me.Label1.TabIndex = 0
        Me.Label1.Text = "查询条件："
        '
        'Label2
        '
        Me.Label2.Location = New System.Drawing.Point(248, 20)
        Me.Label2.Name = "Label2"
        Me.Label2.Size = New System.Drawing.Size(72, 23)
        Me.Label2.TabIndex = 0
        Me.Label2.Text = "查询数值："
        '
        'DataGrid1
        '
        Me.DataGrid1.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.DataGrid1.DataMember = ""
        Me.DataGrid1.HeaderForeColor = System.Drawing.SystemColors.ControlText
        Me.DataGrid1.Location = New System.Drawing.Point(96, 64)
        Me.DataGrid1.Name = "DataGrid1"
        Me.DataGrid1.ReadOnly = True
        Me.DataGrid1.Size = New System.Drawing.Size(512, 353)
        Me.DataGrid1.TabIndex = 1
        '
        'GroupBox2
        '
        Me.GroupBox2.Anchor = CType(((System.Windows.Forms.AnchorStyles.Top Or System.Windows.Forms.AnchorStyles.Bottom) _
                    Or System.Windows.Forms.AnchorStyles.Left), System.Windows.Forms.AnchorStyles)
        Me.GroupBox2.Controls.Add(Me.Button2)
        Me.GroupBox2.Controls.Add(Me.Button3)
        Me.GroupBox2.Controls.Add(Me.Button4)
        Me.GroupBox2.Controls.Add(Me.Button5)
        Me.GroupBox2.Controls.Add(Me.Button6)
        Me.GroupBox2.Controls.Add(Me.Button7)
        Me.GroupBox2.Controls.Add(Me.Button8)
        Me.GroupBox2.Controls.Add(Me.Button9)
        Me.GroupBox2.Location = New System.Drawing.Point(7, 58)
        Me.GroupBox2.Name = "GroupBox2"
        Me.GroupBox2.Size = New System.Drawing.Size(88, 359)
        Me.GroupBox2.TabIndex = 2
        Me.GroupBox2.TabStop = False
        '
        'Button2
        '
        Me.Button2.Location = New System.Drawing.Point(7, 192)
        Me.Button2.Name = "Button2"
        Me.Button2.Size = New System.Drawing.Size(72, 24)
        Me.Button2.TabIndex = 0
        Me.Button2.Text = "罚款+归还"
        '
        'Button3
        '
        Me.Button3.Location = New System.Drawing.Point(7, 232)
        Me.Button3.Name = "Button3"
        Me.Button3.Size = New System.Drawing.Size(72, 24)
        Me.Button3.TabIndex = 0
        Me.Button3.Text = "罚款+续借"
        '
        'Button4
        '
        Me.Button4.Location = New System.Drawing.Point(7, 272)
        Me.Button4.Name = "Button4"
        Me.Button4.Size = New System.Drawing.Size(72, 24)
        Me.Button4.TabIndex = 0
        Me.Button4.Text = "刷新"
        '
        'Button5
        '
        Me.Button5.Location = New System.Drawing.Point(7, 312)
        Me.Button5.Name = "Button5"
        Me.Button5.Size = New System.Drawing.Size(72, 24)
        Me.Button5.TabIndex = 0
        Me.Button5.Text = "退出"
        '
        'Button6
        '
        Me.Button6.Location = New System.Drawing.Point(8, 32)
        Me.Button6.Name = "Button6"
        Me.Button6.Size = New System.Drawing.Size(72, 24)
        Me.Button6.TabIndex = 0
        Me.Button6.Text = "首记录"
        '
        'Button7
        '
        Me.Button7.Location = New System.Drawing.Point(8, 72)
        Me.Button7.Name = "Button7"
        Me.Button7.Size = New System.Drawing.Size(72, 24)
        Me.Button7.TabIndex = 0
        Me.Button7.Text = "上一条"
        '
        'Button8
        '
        Me.Button8.Location = New System.Drawing.Point(8, 112)
        Me.Button8.Name = "Button8"
        Me.Button8.Size = New System.Drawing.Size(72, 24)
        Me.Button8.TabIndex = 0
        Me.Button8.Text = "下一条"
        '