form1.frm

这里有很多很实用的VB编程案例,方便大家学习VB.

VERSION 5.00
Object = "{6B7E6392-850A-101B-AFC0-4210102A8DA7}#1.3#0"; "COMCTL32.OCX"
Begin VB.Form Form1 
   Caption         =   "Treeview控件特性"
   ClientHeight    =   5265
   ClientLeft      =   3915
   ClientTop       =   2730
   ClientWidth     =   4815
   LinkTopic       =   "Form1"
   LockControls    =   -1  'True
   ScaleHeight     =   5265
   ScaleWidth      =   4815
   Begin ComctlLib.TreeView TreeView1 
      Height          =   4065
      Left            =   300
      TabIndex        =   0
      Top             =   870
      Width           =   4095
      _ExtentX        =   7223
      _ExtentY        =   7170
      _Version        =   327682
      Indentation     =   353
      Style           =   7
      ImageList       =   "ImageList1"
      Appearance      =   1
   End
   Begin VB.Label Label2 
      Caption         =   "Node from item handle:"
      Height          =   270
      Left            =   360
      TabIndex        =   2
      Top             =   450
      Width           =   3750
   End
   Begin VB.Label Label1 
      Caption         =   "Item handle from node:"
      Height          =   270
      Left            =   360
      TabIndex        =   1
      Top             =   90
      Width           =   3750
   End
   Begin ComctlLib.ImageList ImageList1 
      Left            =   4200
      Top             =   90
      _ExtentX        =   1005
      _ExtentY        =   1005
      BackColor       =   -2147483643
      ImageWidth      =   16
      ImageHeight     =   16
      MaskColor       =   12632256
      _Version        =   327682
      BeginProperty Images {0713E8C2-850A-101B-AFC0-4210102A8DA7} 
         NumListImages   =   3
         BeginProperty ListImage1 {0713E8C3-850A-101B-AFC0-4210102A8DA7} 
            Picture         =   "Form1.frx":0000
            Key             =   ""
         EndProperty
         BeginProperty ListImage2 {0713E8C3-850A-101B-AFC0-4210102A8DA7} 
            Picture         =   "Form1.frx":031A
            Key             =   ""
         EndProperty
         BeginProperty ListImage3 {0713E8C3-850A-101B-AFC0-4210102A8DA7} 
            Picture         =   "Form1.frx":0634
            Key             =   ""
         EndProperty
      EndProperty
   End
End
Attribute VB_Name = "Form1"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Option Explicit


Private Sub Form_Load()
  Dim Node1 As Node
  Dim Node2 As Node
  Dim Node3 As Node
  Dim i As Integer
  Dim j As Integer
  Dim k As Integer
  
  TreeView1.HideSelection = False
  TreeView1.LabelEdit = tvwManual
  TreeView1.LineStyle = tvwRootLines
  
  For i = 1 To 2
    Set Node1 = TreeView1.Nodes.Add(, , , "Root" & i, 1)
    For j = 1 To 3
      Set Node2 = TreeView1.Nodes.Add(Node1.Index, tvwChild, , "Root" & i & "Child" & j, 2)
      For k = 1 To 3
        Set Node3 = TreeView1.Nodes.Add(Node2.Index, tvwChild, , "GrandChild" & (16 * (i - 1)) + (4 * (j - 1)) + k, 3)
      Next
    Next
  
    Node1.Expanded = True
  Next
  Call TreeView1_NodeClick(TreeView1.Nodes(1))
End Sub

Private Sub TreeView1_NodeClick(ByVal Node As ComctlLib.Node)
  Dim hItem As Long
  Dim nod As Node
  
  hItem = GetTVItemFromNode(TreeView1.hWnd, Node)
  If hItem Then
    Label1 = "Item handle from node: " & GetTVItemText(TreeView1.hWnd, hItem)
    Set nod = GetNodeFromTVItem(TreeView1, hItem)
    If (nod Is Nothing) = False Then
      Label2 = "Node from item handle: " & nod.Text
    End If
  End If
End Sub