form1.vb

编程之道VB.NETt程序设计入门-589M.zip

Public Class Form1
    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

    '窗体重写处置以清理组件列表。
    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 Splitter1 As System.Windows.Forms.Splitter
    Friend WithEvents trvClass As System.Windows.Forms.TreeView
    Friend WithEvents rtbNote As System.Windows.Forms.RichTextBox
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        Me.trvClass = New System.Windows.Forms.TreeView()
        Me.Splitter1 = New System.Windows.Forms.Splitter()
        Me.rtbNote = New System.Windows.Forms.RichTextBox()
        Me.SuspendLayout()
        '
        'trvClass
        '
        Me.trvClass.Dock = System.Windows.Forms.DockStyle.Left
        Me.trvClass.ImageIndex = -1
        Me.trvClass.Name = "trvClass"
        Me.trvClass.Nodes.AddRange(New System.Windows.Forms.TreeNode() {New System.Windows.Forms.TreeNode("星期一"), New System.Windows.Forms.TreeNode("星期二"), New System.Windows.Forms.TreeNode("星期三"), New System.Windows.Forms.TreeNode("星期四"), New System.Windows.Forms.TreeNode("星期五")})
        Me.trvClass.SelectedImageIndex = -1
        Me.trvClass.Size = New System.Drawing.Size(176, 350)
        Me.trvClass.TabIndex = 0
        '
        'Splitter1
        '
        Me.Splitter1.Location = New System.Drawing.Point(176, 0)
        Me.Splitter1.Name = "Splitter1"
        Me.Splitter1.Size = New System.Drawing.Size(8, 350)
        Me.Splitter1.TabIndex = 1
        Me.Splitter1.TabStop = False
        '
        'rtbNote
        '
        Me.rtbNote.Dock = System.Windows.Forms.DockStyle.Fill
        Me.rtbNote.Location = New System.Drawing.Point(184, 0)
        Me.rtbNote.Name = "rtbNote"
        Me.rtbNote.Size = New System.Drawing.Size(376, 350)
        Me.rtbNote.TabIndex = 2
        Me.rtbNote.Text = "RichTextBox1"
        '
        'Form1
        '
        Me.AutoScaleBaseSize = New System.Drawing.Size(6, 14)
        Me.ClientSize = New System.Drawing.Size(560, 350)
        Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.rtbNote, Me.Splitter1, Me.trvClass})
        Me.Name = "Form1"
        Me.Text = "Form1"
        Me.ResumeLayout(False)

    End Sub

#End Region

    Private strClassNotes(20) As String
    Private strDayNotes(5) As String

    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        Dim trnClass As TreeNode

        For Each trnClass In trvClass.Nodes
            trnClass.Nodes.Add("上午1、2节")
            trnClass.Nodes.Add("上午3、4节")
            trnClass.Nodes.Add("下午1、2节")
            trnClass.Nodes.Add("下午3、4节")
        Next
        rtbNote.Text = ""
    End Sub

    Private Sub trvClass_AfterSelect(ByVal sender As System.Object, ByVal e As System.Windows.Forms.TreeViewEventArgs) Handles trvClass.AfterSelect
        Dim trnCurrentNode As TreeNode
        Static iClassIndex As Integer = 0
        Static iDayIndex As Integer = 0

        If iClassIndex <> -1 Then strClassNotes(iClassIndex) = rtbNote.Text
        If iDayIndex <> -1 Then strDayNotes(iDayIndex) = rtbNote.Text

        trnCurrentNode = trvClass.SelectedNode
        If trnCurrentNode.Parent Is Nothing Then
            iClassIndex = -1
            iDayIndex = trnCurrentNode.Index
            rtbNote.Text = strDayNotes(iDayIndex)
        Else
            iDayIndex = -1
            iClassIndex = trnCurrentNode.Parent.Index * 4 + trnCurrentNode.Index
            rtbNote.Text = strClassNotes(iClassIndex)
        End If
    End Sub
End Class