frmaddmarks.vb

这是一个经典的学生管理的例程序欢迎使用偶

Imports System.IO

Public Class frmAddMarks
    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 txtStNo As System.Windows.Forms.TextBox
    Friend WithEvents txtStName As System.Windows.Forms.TextBox
    Friend WithEvents txtTXYL As System.Windows.Forms.TextBox
    Friend WithEvents txtDZXL As System.Windows.Forms.TextBox
    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 btnAdd As System.Windows.Forms.Button
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        Me.GroupBox1 = New System.Windows.Forms.GroupBox
        Me.btnAdd = New System.Windows.Forms.Button
        Me.Label4 = New System.Windows.Forms.Label
        Me.Label3 = New System.Windows.Forms.Label
        Me.Label2 = New System.Windows.Forms.Label
        Me.Label1 = New System.Windows.Forms.Label
        Me.txtDZXL = New System.Windows.Forms.TextBox
        Me.txtTXYL = New System.Windows.Forms.TextBox
        Me.txtStName = New System.Windows.Forms.TextBox
        Me.txtStNo = New System.Windows.Forms.TextBox
        Me.GroupBox1.SuspendLayout()
        Me.SuspendLayout()
        '
        'GroupBox1
        '
        Me.GroupBox1.BackColor = System.Drawing.Color.FromArgb(CType(255, Byte), CType(192, Byte), CType(255, Byte))
        Me.GroupBox1.Controls.Add(Me.btnAdd)
        Me.GroupBox1.Controls.Add(Me.Label4)
        Me.GroupBox1.Controls.Add(Me.Label3)
        Me.GroupBox1.Controls.Add(Me.Label2)
        Me.GroupBox1.Controls.Add(Me.Label1)
        Me.GroupBox1.Controls.Add(Me.txtDZXL)
        Me.GroupBox1.Controls.Add(Me.txtTXYL)
        Me.GroupBox1.Controls.Add(Me.txtStName)
        Me.GroupBox1.Controls.Add(Me.txtStNo)
        Me.GroupBox1.Location = New System.Drawing.Point(8, 8)
        Me.GroupBox1.Name = "GroupBox1"
        Me.GroupBox1.Size = New System.Drawing.Size(200, 256)
        Me.GroupBox1.TabIndex = 0
        Me.GroupBox1.TabStop = False
        Me.GroupBox1.Text = "添加学生成绩"
        '
        'btnAdd
        '
        Me.btnAdd.Location = New System.Drawing.Point(8, 216)
        Me.btnAdd.Name = "btnAdd"
        Me.btnAdd.Size = New System.Drawing.Size(48, 23)
        Me.btnAdd.TabIndex = 8
        Me.btnAdd.Text = "添加"
        '
        'Label4
        '
        Me.Label4.Location = New System.Drawing.Point(8, 168)
        Me.Label4.Name = "Label4"
        Me.Label4.Size = New System.Drawing.Size(56, 16)
        Me.Label4.TabIndex = 7
        Me.Label4.Text = "电子线路"
        '
        'Label3
        '
        Me.Label3.Location = New System.Drawing.Point(8, 128)
        Me.Label3.Name = "Label3"
        Me.Label3.Size = New System.Drawing.Size(56, 16)
        Me.Label3.TabIndex = 6
        Me.Label3.Text = "通信原理"
        '
        'Label2
        '
        Me.Label2.Location = New System.Drawing.Point(8, 72)
        Me.Label2.Name = "Label2"
        Me.Label2.Size = New System.Drawing.Size(64, 16)
        Me.Label2.TabIndex = 5
        Me.Label2.Text = "姓    名"
        '
        'Label1
        '
        Me.Label1.Location = New System.Drawing.Point(8, 28)
        Me.Label1.Name = "Label1"
        Me.Label1.Size = New System.Drawing.Size(56, 16)
        Me.Label1.TabIndex = 4
        Me.Label1.Text = "学    号"
        '
        'txtDZXL
        '
        Me.txtDZXL.Location = New System.Drawing.Point(72, 168)
        Me.txtDZXL.Name = "txtDZXL"
        Me.txtDZXL.TabIndex = 3
        Me.txtDZXL.Text = ""
        '
        'txtTXYL
        '
        Me.txtTXYL.Location = New System.Drawing.Point(72, 120)
        Me.txtTXYL.Name = "txtTXYL"
        Me.txtTXYL.TabIndex = 2
        Me.txtTXYL.Text = ""
        '
        'txtStName
        '
        Me.txtStName.Location = New System.Drawing.Point(72, 72)
        Me.txtStName.Name = "txtStName"
        Me.txtStName.TabIndex = 1
        Me.txtStName.Text = ""
        '
        'txtStNo
        '
        Me.txtStNo.Location = New System.Drawing.Point(72, 24)
        Me.txtStNo.Name = "txtStNo"
        Me.txtStNo.TabIndex = 0
        Me.txtStNo.Text = ""
        '
        'frmAddMarks
        '
        Me.AutoScaleBaseSize = New System.Drawing.Size(6, 14)
        Me.BackColor = System.Drawing.SystemColors.ActiveCaptionText
        Me.ClientSize = New System.Drawing.Size(216, 270)
        Me.Controls.Add(Me.GroupBox1)
        Me.Name = "frmAddMarks"
        Me.Text = "frmAddMarks"
        Me.GroupBox1.ResumeLayout(False)
        Me.ResumeLayout(False)

    End Sub

#End Region

    Private Sub btnAdd_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnAdd.Click
        Dim strTemp As String '临时
        Dim arrNo(8) As Char '学号为9位,如03051125,03-入学年份,05-所在学院代码,1-
        strTemp = txtStNo.Text.Trim
        If strTemp.Length <> 9 Then
            MessageBox.Show("学号必须为9位!请重新输入")
            Exit Sub
        Else
            strTemp.CopyTo(0, arrNo, 0, 9)
        End If

        Dim arrName(2) As Char  '姓名不能超过3个字
        strTemp = txtStName.Text.Trim
        If strTemp.Length = 0 Then
            MessageBox.Show("请输入姓名")
            Exit Sub
        ElseIf strTemp.Length <= 3 Then
            strTemp.CopyTo(0, arrName, 0, strTemp.Length)
        Else
            strTemp.CopyTo(0, arrName, 0, 3) '超过3位,将被截去
        End If

        Dim i As Integer
        For i = 0 To 2
            If arrName(i) = Nothing Then
                arrName(i) = ""
            End If
        Next

        If txtTXYL.Text.Trim.Length = 0 OrElse txtDZXL.Text.Trim.Length = 0 Then
            MessageBox.Show("请输入成绩")
            Exit Sub
        End If

        Dim intTXYL As Integer = CInt(txtTXYL.Text)
        Dim intDZXL As Integer = CInt(txtDZXL.Text)

        Dim fsMarks As New FileStream(".\Marks.bin", FileMode.Append, FileAccess.Write)
        Dim bwMarks As New BinaryWriter(fsMarks)

        bwMarks.Write(arrNo)
        bwMarks.Write(arrName)
        bwMarks.Write(intTXYL)
        bwMarks.Write(intDZXL)

        bwMarks.Close()

        MessageBox.Show("添加成功")
        txtStNo.Text = ""
        txtStName.Text = ""
        txtTXYL.Text = ""
        txtDZXL.Text = ""

    End Sub
End Class