result.vb

档案管理系统

Public Class frmResult
    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 grdResult As System.Windows.Forms.DataGrid
    Friend WithEvents btnConfirm As System.Windows.Forms.Button
    Friend WithEvents btnCancel As System.Windows.Forms.Button
    Friend WithEvents DataGridTableStyle1 As System.Windows.Forms.DataGridTableStyle
    Friend WithEvents DataGridTextBoxColumn1 As System.Windows.Forms.DataGridTextBoxColumn
    Friend WithEvents DataGridTextBoxColumn2 As System.Windows.Forms.DataGridTextBoxColumn
    Friend WithEvents DataGridTextBoxColumn3 As System.Windows.Forms.DataGridTextBoxColumn
    Friend WithEvents DataGridTextBoxColumn4 As System.Windows.Forms.DataGridTextBoxColumn
    Friend WithEvents DataGridTextBoxColumn5 As System.Windows.Forms.DataGridTextBoxColumn
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        Me.grdResult = New System.Windows.Forms.DataGrid
        Me.DataGridTableStyle1 = New System.Windows.Forms.DataGridTableStyle
        Me.DataGridTextBoxColumn1 = New System.Windows.Forms.DataGridTextBoxColumn
        Me.DataGridTextBoxColumn2 = New System.Windows.Forms.DataGridTextBoxColumn
        Me.DataGridTextBoxColumn3 = New System.Windows.Forms.DataGridTextBoxColumn
        Me.DataGridTextBoxColumn4 = New System.Windows.Forms.DataGridTextBoxColumn
        Me.DataGridTextBoxColumn5 = New System.Windows.Forms.DataGridTextBoxColumn
        Me.btnConfirm = New System.Windows.Forms.Button
        Me.btnCancel = New System.Windows.Forms.Button
        CType(Me.grdResult, System.ComponentModel.ISupportInitialize).BeginInit()
        Me.SuspendLayout()
        '
        'grdResult
        '
        Me.grdResult.DataMember = ""
        Me.grdResult.Dock = System.Windows.Forms.DockStyle.Top
        Me.grdResult.HeaderForeColor = System.Drawing.SystemColors.ControlText
        Me.grdResult.Location = New System.Drawing.Point(0, 0)
        Me.grdResult.Name = "grdResult"
        Me.grdResult.Size = New System.Drawing.Size(400, 312)
        Me.grdResult.TabIndex = 0
        Me.grdResult.TableStyles.AddRange(New System.Windows.Forms.DataGridTableStyle() {Me.DataGridTableStyle1})
        '
        'DataGridTableStyle1
        '
        Me.DataGridTableStyle1.DataGrid = Me.grdResult
        Me.DataGridTableStyle1.GridColumnStyles.AddRange(New System.Windows.Forms.DataGridColumnStyle() {Me.DataGridTextBoxColumn1, Me.DataGridTextBoxColumn2, Me.DataGridTextBoxColumn3, Me.DataGridTextBoxColumn4, Me.DataGridTextBoxColumn5})
        Me.DataGridTableStyle1.HeaderForeColor = System.Drawing.SystemColors.ControlText
        Me.DataGridTableStyle1.MappingName = "Table"
        '
        'DataGridTextBoxColumn1
        '
        Me.DataGridTextBoxColumn1.Format = ""
        Me.DataGridTextBoxColumn1.FormatInfo = Nothing
        Me.DataGridTextBoxColumn1.HeaderText = "学号"
        Me.DataGridTextBoxColumn1.MappingName = "学号"
        Me.DataGridTextBoxColumn1.NullText = ""
        Me.DataGridTextBoxColumn1.ReadOnly = True
        Me.DataGridTextBoxColumn1.Width = 80
        '
        'DataGridTextBoxColumn2
        '
        Me.DataGridTextBoxColumn2.Format = ""
        Me.DataGridTextBoxColumn2.FormatInfo = Nothing
        Me.DataGridTextBoxColumn2.HeaderText = "姓名"
        Me.DataGridTextBoxColumn2.MappingName = "姓名"
        Me.DataGridTextBoxColumn2.NullText = ""
        Me.DataGridTextBoxColumn2.ReadOnly = True
        Me.DataGridTextBoxColumn2.Width = 80
        '
        'DataGridTextBoxColumn3
        '
        Me.DataGridTextBoxColumn3.Format = ""
        Me.DataGridTextBoxColumn3.FormatInfo = Nothing
        Me.DataGridTextBoxColumn3.HeaderText = "课程名"
        Me.DataGridTextBoxColumn3.MappingName = "课程名"
        Me.DataGridTextBoxColumn3.NullText = ""
        Me.DataGridTextBoxColumn3.ReadOnly = True
        Me.DataGridTextBoxColumn3.Width = 75
        '
        'DataGridTextBoxColumn4
        '
        Me.DataGridTextBoxColumn4.Format = ""
        Me.DataGridTextBoxColumn4.FormatInfo = Nothing
        Me.DataGridTextBoxColumn4.HeaderText = "成绩"
        Me.DataGridTextBoxColumn4.MappingName = "成绩"
        Me.DataGridTextBoxColumn4.NullText = ""
        Me.DataGridTextBoxColumn4.Width = 60
        '
        'DataGridTextBoxColumn5
        '
        Me.DataGridTextBoxColumn5.Format = ""
        Me.DataGridTextBoxColumn5.FormatInfo = Nothing
        Me.DataGridTextBoxColumn5.HeaderText = "考查成绩"
        Me.DataGridTextBoxColumn5.MappingName = "考查成绩"
        Me.DataGridTextBoxColumn5.NullText = ""
        Me.DataGridTextBoxColumn5.Width = 80
        '
        'btnConfirm
        '
        Me.btnConfirm.Location = New System.Drawing.Point(16, 328)
        Me.btnConfirm.Name = "btnConfirm"
        Me.btnConfirm.Size = New System.Drawing.Size(56, 24)
        Me.btnConfirm.TabIndex = 1
        Me.btnConfirm.Text = "确定"
        '
        'btnCancel
        '
        Me.btnCancel.DialogResult = System.Windows.Forms.DialogResult.Cancel
        Me.btnCancel.Location = New System.Drawing.Point(96, 328)
        Me.btnCancel.Name = "btnCancel"
        Me.btnCancel.Size = New System.Drawing.Size(56, 24)
        Me.btnCancel.TabIndex = 1
        Me.btnCancel.Text = "取消"
        '
        'frmResult
        '
        Me.AcceptButton = Me.btnConfirm
        Me.AutoScaleBaseSize = New System.Drawing.Size(6, 14)
        Me.CancelButton = Me.btnCancel
        Me.ClientSize = New System.Drawing.Size(400, 365)
        Me.Controls.Add(Me.btnConfirm)
        Me.Controls.Add(Me.grdResult)
        Me.Controls.Add(Me.btnCancel)
        Me.MaximizeBox = False
        Me.Name = "frmResult"
        Me.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen
        Me.Text = "成绩登记"
        CType(Me.grdResult, System.ComponentModel.ISupportInitialize).EndInit()
        Me.ResumeLayout(False)

    End Sub

#End Region

    Public classname As String
    Public coursename As String
    Public type As Integer = 0
    Private myDataSet As New DataSet

    Private Sub frmResult_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        Dim str As String

        grdResult.CaptionText = classname
        If coursename = "" Then
            str = "select * from 学生课程视图 where 班名='" & classname & "'"
        Else
            str = "select * from 学生课程视图 where 班名='" & classname & "' and 课程名='" & coursename & "'"
        End If
        If OleConn.SelectQuery(str, myDataSet) Then
            grdResult.SetDataBinding(myDataSet, "Table")
        Else
            MsgBox("查询学生课程视图失败")
        End If
    End Sub

    Private Sub btnConfirm_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnConfirm.Click
        Dim succ As Boolean = True
        Dim i As Integer
        Dim str As String

        If type = 1 Then
            Me.Close()
        Else

            Try
                For i = 0 To myDataSet.Tables(0).Rows.Count - 1
                    str = "update 学生课程关系 set 成绩=" & grdResult.Item(i, 3) & ", 考查成绩='" & _
                        grdResult.Item(i, 4) & "'" & " where 学号=" & grdResult.Item(i, 0) & _
                        " and 课程名='" & classname & "'"
                    OleConn.UpdateQuery(str)
                Next
                myDataSet.Tables(0).AcceptChanges()
            Catch ex As Exception
                succ = False
                DisplayError(ex)
            End Try

            If succ Then
                MsgBox("更新数据库成功")
            Else
                MsgBox("更新数据库失败")
            End If
        End If
    End Sub

    Private Sub btnCancel_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnCancel.Click
        If type = 1 Then
            Me.Close()
        Else
            myDataSet.RejectChanges()
        End If

    End Sub

End Class