input.vb

档案管理系统

Public Class frmInput
    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 Label2 As System.Windows.Forms.Label
    Friend WithEvents Label3 As System.Windows.Forms.Label
    Friend WithEvents cmbId As System.Windows.Forms.ComboBox
    Friend WithEvents cmbName As System.Windows.Forms.ComboBox
    Friend WithEvents btnConfirm As System.Windows.Forms.Button
    Friend WithEvents btnCancel As System.Windows.Forms.Button
    Friend WithEvents btnOK As System.Windows.Forms.Button
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        Me.Label2 = New System.Windows.Forms.Label
        Me.btnConfirm = New System.Windows.Forms.Button
        Me.Label3 = New System.Windows.Forms.Label
        Me.btnCancel = New System.Windows.Forms.Button
        Me.cmbId = New System.Windows.Forms.ComboBox
        Me.cmbName = New System.Windows.Forms.ComboBox
        Me.btnOK = New System.Windows.Forms.Button
        Me.SuspendLayout()
        '
        'Label2
        '
        Me.Label2.Location = New System.Drawing.Point(16, 16)
        Me.Label2.Name = "Label2"
        Me.Label2.Size = New System.Drawing.Size(56, 16)
        Me.Label2.TabIndex = 2
        Me.Label2.Text = "学号"
        '
        'btnConfirm
        '
        Me.btnConfirm.Location = New System.Drawing.Point(16, 96)
        Me.btnConfirm.Name = "btnConfirm"
        Me.btnConfirm.Size = New System.Drawing.Size(48, 24)
        Me.btnConfirm.TabIndex = 3
        Me.btnConfirm.Text = "确定"
        '
        'Label3
        '
        Me.Label3.Location = New System.Drawing.Point(16, 56)
        Me.Label3.Name = "Label3"
        Me.Label3.Size = New System.Drawing.Size(56, 16)
        Me.Label3.TabIndex = 2
        Me.Label3.Text = "姓名"
        '
        'btnCancel
        '
        Me.btnCancel.DialogResult = System.Windows.Forms.DialogResult.Cancel
        Me.btnCancel.Location = New System.Drawing.Point(88, 96)
        Me.btnCancel.Name = "btnCancel"
        Me.btnCancel.Size = New System.Drawing.Size(48, 24)
        Me.btnCancel.TabIndex = 3
        Me.btnCancel.Text = "取消"
        '
        'cmbId
        '
        Me.cmbId.Location = New System.Drawing.Point(88, 16)
        Me.cmbId.Name = "cmbId"
        Me.cmbId.Size = New System.Drawing.Size(144, 20)
        Me.cmbId.Sorted = True
        Me.cmbId.TabIndex = 4
        '
        'cmbName
        '
        Me.cmbName.Location = New System.Drawing.Point(88, 56)
        Me.cmbName.Name = "cmbName"
        Me.cmbName.Size = New System.Drawing.Size(144, 20)
        Me.cmbName.TabIndex = 4
        '
        'btnOK
        '
        Me.btnOK.DialogResult = System.Windows.Forms.DialogResult.OK
        Me.btnOK.Location = New System.Drawing.Point(88, 96)
        Me.btnOK.Name = "btnOK"
        Me.btnOK.Size = New System.Drawing.Size(48, 24)
        Me.btnOK.TabIndex = 3
        '
        'frmInput
        '
        Me.AcceptButton = Me.btnConfirm
        Me.AutoScaleBaseSize = New System.Drawing.Size(6, 14)
        Me.CancelButton = Me.btnCancel
        Me.ClientSize = New System.Drawing.Size(248, 133)
        Me.Controls.Add(Me.cmbId)
        Me.Controls.Add(Me.btnConfirm)
        Me.Controls.Add(Me.Label2)
        Me.Controls.Add(Me.Label3)
        Me.Controls.Add(Me.btnCancel)
        Me.Controls.Add(Me.cmbName)
        Me.Controls.Add(Me.btnOK)
        Me.MaximizeBox = False
        Me.Name = "frmInput"
        Me.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen
        Me.Text = "选择学生"
        Me.ResumeLayout(False)

    End Sub

#End Region

    Private myDataReader As System.Data.OleDb.OleDbDataReader
    Public id As Integer
    Public sname As String

    Private Sub frmInput_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        If OleConn.SelectQuery("select 学号,姓名 from 学生信息", myDataReader) Then
            While myDataReader.Read
                cmbId.Items.Add(myDataReader.Item(0))
                cmbName.Items.Add(myDataReader.Item(1))
            End While
            myDataReader.Close()
        Else
            MsgBox("查询学生表失败")
        End If
    End Sub

    Private Sub btnConfirm_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnConfirm.Click
        Dim str As String

        If cmbId.Text = "" And cmbName.Text = "" Then
            MsgBox("请输入学号或姓名")
            Return
        ElseIf cmbId.Text <> "" Then
            str = "select * from 学生信息 where 学号=" & CInt(cmbId.Text)
        ElseIf cmbName.Text <> "" Then
            str = "select * from 学生信息 where 姓名='" & cmbName.Text & "'"
        End If

        If OleConn.SelectQuery(str, stdDataSet) Then
            If stdDataSet.Tables.Count > 0 Then
                id = CInt(cmbId.SelectedItem)
                sname = cmbName.SelectedItem
                btnOK.PerformClick()
            Else
                MsgBox("输入的学号或姓名有误!")
            End If
        Else
            MsgBox("查询学生表失败")
        End If
    End Sub
End Class