frmbooktype.frm

VB和Oracle结合的程序

VERSION 5.00
Object = "{831FDD16-0C5C-11D2-A9FC-0000F8754DA1}#2.0#0"; "MSCOMCTL.OCX"
Begin VB.Form FrmBookType 
   BorderStyle     =   1  'Fixed Single
   Caption         =   "院系班级管理"
   ClientHeight    =   7380
   ClientLeft      =   45
   ClientTop       =   330
   ClientWidth     =   6270
   LinkTopic       =   "Form1"
   MaxButton       =   0   'False
   MinButton       =   0   'False
   ScaleHeight     =   7380
   ScaleWidth      =   6270
   StartUpPosition =   1  '所有者中心
   Begin VB.CommandButton Cmd_Back 
      BackColor       =   &H80000004&
      Cancel          =   -1  'True
      Caption         =   "返 回"
      Height          =   400
      Left            =   4680
      MousePointer    =   99  'Custom
      Style           =   1  'Graphical
      TabIndex        =   4
      Top             =   6720
      Width           =   1300
   End
   Begin VB.CommandButton Cmd_Del 
      BackColor       =   &H80000004&
      Caption         =   "删 除"
      Height          =   400
      Left            =   3240
      MousePointer    =   99  'Custom
      Style           =   1  'Graphical
      TabIndex        =   3
      Top             =   6720
      Width           =   1300
   End
   Begin VB.CommandButton Cmd_Modi 
      BackColor       =   &H80000004&
      Caption         =   "修 改"
      Height          =   400
      Left            =   1800
      MousePointer    =   99  'Custom
      Style           =   1  'Graphical
      TabIndex        =   2
      Top             =   6720
      Width           =   1300
   End
   Begin VB.CommandButton Cmd_Add 
      BackColor       =   &H80000004&
      Caption         =   "添 加"
      Default         =   -1  'True
      Height          =   400
      Left            =   360
      MousePointer    =   99  'Custom
      Style           =   1  'Graphical
      TabIndex        =   1
      Top             =   6720
      Width           =   1300
   End
   Begin MSComctlLib.ImageList ImageList1 
      Left            =   0
      Top             =   0
      _ExtentX        =   1005
      _ExtentY        =   1005
      BackColor       =   -2147483628
      ImageWidth      =   16
      ImageHeight     =   16
      MaskColor       =   16777215
      _Version        =   393216
      BeginProperty Images {2C247F25-8591-11D1-B16A-00C0F0283628} 
         NumListImages   =   5
         BeginProperty ListImage1 {2C247F27-8591-11D1-B16A-00C0F0283628} 
            Picture         =   "FrmBookType.frx":0000
            Key             =   ""
         EndProperty
         BeginProperty ListImage2 {2C247F27-8591-11D1-B16A-00C0F0283628} 
            Picture         =   "FrmBookType.frx":2992
            Key             =   ""
         EndProperty
         BeginProperty ListImage3 {2C247F27-8591-11D1-B16A-00C0F0283628} 
            Picture         =   "FrmBookType.frx":5324
            Key             =   ""
         EndProperty
         BeginProperty ListImage4 {2C247F27-8591-11D1-B16A-00C0F0283628} 
            Picture         =   "FrmBookType.frx":7CB6
            Key             =   ""
         EndProperty
         BeginProperty ListImage5 {2C247F27-8591-11D1-B16A-00C0F0283628} 
            Picture         =   "FrmBookType.frx":A648
            Key             =   ""
         EndProperty
      EndProperty
   End
   Begin MSComctlLib.TreeView TreeView1 
      Height          =   6375
      Left            =   240
      TabIndex        =   0
      Top             =   120
      Width           =   5775
      _ExtentX        =   10186
      _ExtentY        =   11245
      _Version        =   393217
      HideSelection   =   0   'False
      LabelEdit       =   1
      Sorted          =   -1  'True
      Style           =   7
      HotTracking     =   -1  'True
      SingleSel       =   -1  'True
      ImageList       =   "ImageList1"
      BorderStyle     =   1
      Appearance      =   1
      MousePointer    =   99
      BeginProperty Font {0BE35203-8F91-11CE-9DE3-00AA004BB851} 
         Name            =   "宋体"
         Size            =   9
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
   End
End
Attribute VB_Name = "FrmBookType"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False

Private Sub Cmd_Add_Click()
  '初始化FrmBookTypeEdit窗体的显示信息
  FrmBookTypeEdit.lblUpper = CurBookType.TypeName
  FrmBookTypeEdit.txtType = ""
  FrmBookTypeEdit.txtDescribe = ""
  FrmBookTypeEdit.Modify = False
  '打开编辑图书分类信息的窗体
  FrmBookTypeEdit.Show 1
  '读取当前节点的信息
  TreeView1_Click
End Sub

Private Sub Cmd_Back_Click()
  Unload Me
End Sub

Private Sub Cmd_Del_Click()
  If TreeView1.SelectedItem.Key = "a0" Then
    MsgBox "此项不能删除"
    Exit Sub
  End If
  '如果当前图书分类包含下一级图书分类，则不能删除
  If CurBookType.HaveSon(CurBookType.TypeId) = True Then
    MsgBox CurBookType.TypeName + " 包含下级图书分类，不能删除"
    Exit Sub
  End If
  '如果图书分类中包含下级分类，则不能删除
  If MyBookType.HaveSon(CurBookType.TypeId) = True Then
    MsgBox CurBookType.TypeName + " 包含下级分类，不能删除"
    Exit Sub
  End If
  '确定删除
  If MsgBox("是否确定要删除 " + Trim(TreeView1.SelectedItem.Text), vbYesNo, "请确认") = vbNo Then
    Exit Sub
  End If
  '删除图书分类
  Call CurBookType.Delete(CurBookType.TypeId)
  '从TreeView控件中删除当前选择的节点
  TreeView1.Nodes.Remove TreeView1.SelectedItem.Index
  TreeView1_Click
End Sub

Private Sub Cmd_Modi_Click()
  '不能修改根结点
  If TreeView1.SelectedItem.Key = "a0" Then
    MsgBox "此项不能修改"
    Exit Sub
  End If
  '将当前图书分类的信息赋值到编辑图书分类信息的窗口
  FrmBookTypeEdit.lblUpper = MyBookType.GetName(CurBookType.UpperId)
  FrmBookTypeEdit.txtType = CurBookType.TypeName
  FrmBookTypeEdit.txtDescribe = CurBookType.Describe
  FrmBookTypeEdit.Modify = True
  '启动图书分类信息编辑窗体
  FrmBookTypeEdit.Show 1
  '读取当前节点的信息
  TreeView1_Click
End Sub

Private Sub Form_Load()
  Dim TmpNode As Node
  '设置当前的焦点分类
  FocusClassName = "分类名称"
  Focuskey = ""
  
  '设置根结点
  Set TmpNode = TreeView1.Nodes.Add(, , "a0", "图书分类", 1, 3)
  TmpNode.Selected = True
  TmpNode.ExpandedImage = 2
  '调用函数将所有图书分类添加到TreeView1中
  Call AddtoTree(TreeView1, "a0")
  '读取当前节点的信息
  TreeView1_Click
End Sub

Private Sub TreeView1_Click()
  Dim Focuskey As String
  '根据关键字获取图书分类信息
  Focuskey = TreeView1.SelectedItem.Key
  CurBookType.TypeName = TreeView1.SelectedItem.Text
  CurBookType.TypeId = Val(Right(TreeView1.SelectedItem.Key, Len(TreeView1.SelectedItem.Key) - 1))
  
  If Focuskey = "a0" Then '根结点
    Exit Sub
  End If
  '如果包含子结点，则设置图像格式
  If CurBookType.HaveSon(CurBookType.TypeId) = False Then
    TreeView1.SelectedItem.ExpandedImage = 4
    TreeView1.SelectedItem.Image = 4
    TreeView1.SelectedItem.SelectedImage = 5
  End If
  '读取CurBookType中的所有图书分类信息
  CurBookType.GetInfo (CurBookType.TypeId)
End Sub