frmaddclassinfo.vb

是一套开发的VB的学生成绩管理系统,希望有需要的人去参考

Imports System.Data.SqlClient
Public Class frmaddclassinfo
    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 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 txtclassno As System.Windows.Forms.TextBox
    Friend WithEvents txtinspector As System.Windows.Forms.TextBox
    Friend WithEvents txtclassroom As System.Windows.Forms.TextBox
    Friend WithEvents combograde As System.Windows.Forms.ComboBox
    Friend WithEvents Button1 As System.Windows.Forms.Button
    Friend WithEvents Button2 As System.Windows.Forms.Button
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        Me.Label1 = New System.Windows.Forms.Label
        Me.Label2 = New System.Windows.Forms.Label
        Me.Label3 = New System.Windows.Forms.Label
        Me.Label4 = New System.Windows.Forms.Label
        Me.txtclassno = New System.Windows.Forms.TextBox
        Me.txtinspector = New System.Windows.Forms.TextBox
        Me.txtclassroom = New System.Windows.Forms.TextBox
        Me.combograde = New System.Windows.Forms.ComboBox
        Me.Button1 = New System.Windows.Forms.Button
        Me.Button2 = New System.Windows.Forms.Button
        Me.SuspendLayout()
        '
        'Label1
        '
        Me.Label1.Location = New System.Drawing.Point(8, 24)
        Me.Label1.Name = "Label1"
        Me.Label1.Size = New System.Drawing.Size(32, 23)
        Me.Label1.TabIndex = 0
        Me.Label1.Text = "班号"
        Me.Label1.TextAlign = System.Drawing.ContentAlignment.MiddleRight
        '
        'Label2
        '
        Me.Label2.Location = New System.Drawing.Point(192, 24)
        Me.Label2.Name = "Label2"
        Me.Label2.Size = New System.Drawing.Size(32, 23)
        Me.Label2.TabIndex = 1
        Me.Label2.Text = "年级"
        Me.Label2.TextAlign = System.Drawing.ContentAlignment.MiddleRight
        '
        'Label3
        '
        Me.Label3.Location = New System.Drawing.Point(0, 80)
        Me.Label3.Name = "Label3"
        Me.Label3.Size = New System.Drawing.Size(48, 23)
        Me.Label3.TabIndex = 2
        Me.Label3.Text = "班主任"
        Me.Label3.TextAlign = System.Drawing.ContentAlignment.MiddleRight
        '
        'Label4
        '
        Me.Label4.Location = New System.Drawing.Point(192, 80)
        Me.Label4.Name = "Label4"
        Me.Label4.Size = New System.Drawing.Size(32, 23)
        Me.Label4.TabIndex = 3
        Me.Label4.Text = "教室"
        Me.Label4.TextAlign = System.Drawing.ContentAlignment.MiddleRight
        '
        'txtclassno
        '
        Me.txtclassno.Location = New System.Drawing.Point(72, 24)
        Me.txtclassno.Name = "txtclassno"
        Me.txtclassno.Size = New System.Drawing.Size(80, 21)
        Me.txtclassno.TabIndex = 4
        Me.txtclassno.Text = ""
        '
        'txtinspector
        '
        Me.txtinspector.Location = New System.Drawing.Point(72, 80)
        Me.txtinspector.Name = "txtinspector"
        Me.txtinspector.Size = New System.Drawing.Size(80, 21)
        Me.txtinspector.TabIndex = 5
        Me.txtinspector.Text = ""
        '
        'txtclassroom
        '
        Me.txtclassroom.Location = New System.Drawing.Point(248, 80)
        Me.txtclassroom.Name = "txtclassroom"
        Me.txtclassroom.TabIndex = 6
        Me.txtclassroom.Text = ""
        '
        'combograde
        '
        Me.combograde.Location = New System.Drawing.Point(248, 24)
        Me.combograde.Name = "combograde"
        Me.combograde.Size = New System.Drawing.Size(88, 20)
        Me.combograde.TabIndex = 7
        '
        'Button1
        '
        Me.Button1.Location = New System.Drawing.Point(72, 168)
        Me.Button1.Name = "Button1"
        Me.Button1.TabIndex = 8
        Me.Button1.Text = "添加"
        '
        'Button2
        '
        Me.Button2.Location = New System.Drawing.Point(232, 168)
        Me.Button2.Name = "Button2"
        Me.Button2.TabIndex = 9
        Me.Button2.Text = "取消"
        '
        'frmaddclassinfo
        '
        Me.AutoScaleBaseSize = New System.Drawing.Size(6, 14)
        Me.ClientSize = New System.Drawing.Size(392, 245)
        Me.Controls.Add(Me.Button2)
        Me.Controls.Add(Me.Button1)
        Me.Controls.Add(Me.combograde)
        Me.Controls.Add(Me.txtclassroom)
        Me.Controls.Add(Me.txtinspector)
        Me.Controls.Add(Me.txtclassno)
        Me.Controls.Add(Me.Label4)
        Me.Controls.Add(Me.Label3)
        Me.Controls.Add(Me.Label2)
        Me.Controls.Add(Me.Label1)
        Me.Name = "frmaddclassinfo"
        Me.Text = "frmaddclassinfo"
        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 tablename As String = "class"
        searchsql = "select * from class"
        Module1.executesql(searchsql, tablename)
        Dim i As Integer
        For i = 0 To (Module1.mytable.Rows.Count - 1)
            Module1.myrow = Module1.mytable.Rows.Item(i)
            If txtclassno.Text.Trim = Trim(Module1.myrow.Item(0).ToString) Then
                MsgBox("学号重复", vbOKOnly + vbExclamation, "提示")
                Exit Sub
            End If
        Next
        Dim newrow As DataRow
        newrow = Module1.mytable.NewRow
        newrow.Item(0) = Trim(txtclassno.Text)
        newrow.Item(1) = Trim(combograde.SelectedItem)
        newrow.Item(2) = Trim(txtinspector.Text)
        newrow.Item(3) = Trim(txtclassroom.Text)
        mytable.Rows.Add(newrow)
        Module1.sqlcmd = New SqlCommandBuilder(Module1.sqladapter)
        Try
            Module1.sqladapter.Update(Module1.ds, tablename)
            MsgBox("添加班级信息成功！", vbOKOnly + vbExclamation, "警告")
        Catch
            MsgBox(Err.Description)
        End Try
    End Sub
    Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
        Me.Close()
    End Sub
End Class