TreeView和数据库
主题:TreeView和数据库
发信人: teleme()
整理人: teleme(2000-12-05 19:09:57) 站内信件
【在 huxley (援助交际) 的大作中提到: 】
: 想用它做一个树形的选取产品项的东西,听说teetree可以与数据库关联使用,但
: 没找到这个控件,也不知道具体的做法.
: 
: 【在 teleme (PassWord) 的大作中提到: 】
尽管是可以和数据库相连,也不是直接连上的,是通过一定的代码为每个节点赋
值的。
有这样一个例子,是使用基本的TreeView例子做的,在程序员大本营上有例子,
第3一部分是unit1.dfm
//unit1.dfm begin
object Form1: TForm1
  Left = 231
  Top = 135
  Width = 528
  Height = 355
  ActiveControl = TreeView1
  Caption = 'Form1'
  Color = clBtnFace
  Font.Charset = DEFAULT_CHARSET
  Font.Color = clWindowText
  Font.Height = -10
  Font.Name = 'MS Sans Serif'
  Font.Style = []
  OldCreateOrder = True
  OnCreate = FormCreate
  PixelsPerInch = 96
  TextHeight = 13
  object Label1: TLabel
    Left = 185
    Top = 23
    Width = 35
    Height = 13
    Caption = 'CustNo'
  end
  object Label2: TLabel
    Left = 185
    Top = 46
    Width = 44
    Height = 13
    Caption = 'Company'
  end
  object Label3: TLabel
    Left = 185
    Top = 68
    Width = 17
    Height = 13
    Caption = 'City'
  end
  object Label4: TLabel
    Left = 185
    Top = 91
    Width = 36
    Height = 13
    Caption = 'Country'
  end
  object TreeView1: TTreeView
    Left = 3
    Top = 2
    Width = 167
    Height = 255
    HideSelection = False
    Indent = 19
    ReadOnly = True
    StateImages = ImageList1
    TabOrder = 0
    OnChange = TreeView1Change
  end
  object DBEdit1: TDBEdit
    Left = 237
    Top = 20
    Width = 60
    Height = 24
    DataField = 'CustNo'
    DataSource = DataSource1
    TabOrder = 1
  end
  object DBEdit2: TDBEdit
    Left = 237
    Top = 42
    Width = 173
    Height = 24
    DataField = 'Company'
    DataSource = DataSource1
    TabOrder = 2
  end
  object DBNavigator1: TDBNavigator
    Left = 237
    Top = 130
    Width = 130
    Height = 20
    DataSource = DataSource1
    VisibleButtons = [nbInsert  nbDelete  nbEdit  nbPost  nbCancel]
    TabOrder = 3
  end
  object DBEdit3: TDBEdit
    Left = 237
    Top = 65
    Width = 108
    Height = 24
    DataField = 'City'
    DataSource = DataSource1
    TabOrder = 4
  end
  object DBEdit4: TDBEdit
    Left = 237
    Top = 88
    Width = 108
    Height = 24
    DataField = 'Country'
    DataSource = DataSource1
    TabOrder = 5
  end
  object ImageList1: TImageList
    Left = 212
    Top = 60
    Bitmap = {
      494C010104000500040010001000FFFFFFFFFF00FFFFFFFFFFFFFFFF424D3600
      0000000000003600000028000000400000002000000001002000000000000020
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000BFBF0000BFBF
      0000BFBF00000000000000000000000000000000000000000000BFBF0000BFBF
      0000BFBF0000BFBF0000FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFF
      FF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFF
      FF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFF
      FF00FFFFFF00FFFFFF00FFFFFF007F7F7F00FFFFFF00FFFFFF00FFFFFF00FFFF
      FF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFF
      FF00FFFFFF00FFFFFF0000000000FFFFFF0000000000FFFFFF00FFFFFF00FFFF
      FF00FFFFFF00FFFFFF00FFFFFF00FFFFFF000000000000000000BFBF0000BFBF
      0000BFBF0000BFBF0000BFBF0000BFBF0000BFBF0000BFBF0000BFBF0000BFBF
      0000BFBF0000BFBF0000FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFF
      FF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFF
      FF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF0000FF
      FF007F7F7F0000FFFF0000FFFF0000FFFF0000FFFF0000FFFF007F7F7F00FFFF
      FF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFF
      FF00FFFFFF00FFFFFF0000000000FFFFFF0000000000FFFFFF00FFFFFF00FFFF
      FF00FFFFFF00FFFFFF00FFFFFF00FFFFFF000000000000000000BFBF0000BFBF
      0000BFBF000000000000FFFFFF00FFFFFF00FFFFFF0000000000BFBF0000BFBF
      0000BFBF0000BFBF0000FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFF
      FF00FFFFFF00000000000000000000000000000000000000000000000000FFFF
      FF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF0000FF
      FF0000FFFF0000FFFF0000FFFF0000FFFF0000FFFF0000FFFF007F7F7F007F7F
      7F00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFF
      FF00FFFFFF00FFFFFF0000000000FFFFFF0000000000FFFFFF00FFFFFF00FFFF
      FF00FFFFFF00FFFFFF00FFFFFF00FFFFFF000000000000000000BFBF0000BFBF
      0000BFBF00000000000000000000000000000000000000000000BFBF0000BFBF
      0000BFBF0000BFBF0000FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFF
      FF0000FFFF0000FFFF0000FFFF0000FFFF0000FFFF0000FFFF0000FFFF007F7F
      7F00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFF
      FF00FFFFFF00FFFFFF0000000000FFFFFF0000000000FFFFFF00FFFFFF00FFFF
      FF00FFFFFF00FFFFFF00FFFFFF00FFFFFF000000000000000000BFBF0000BFBF
      0000BFBF00000000000000000000000000000000000000000000000000000000
      000000000000000000000000000000000000FFFFFF00FFFFFF00000000000000
      000000000000FFFF0000FFFF00000000000000FFFF0000FFFF00000000000000
      000000000000FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF0000FFFF0000FF
      FF0000FFFF0000FFFF0000FFFF0000FFFF0000FFFF0000FFFF007F7F7F00FFFF
      FF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFF
      FF00FFFFFF00FFFFFF0000000000FFFFFF0000000000FFFFFF00FFFFFF00FFFF
      FF00FFFFFF00FFFFFF00FFFFFF00FFFFFF000000000000000000000000000000
      000000000000BFBF0000BFBF0000BFBF0000BFBF0000BFBF000000000000BFBF
      0000BFBF0000BFBF0000BFBF000000000000FFFFFF00FFFFFF00000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      00000000000000000000FFFFFF00FFFFFF00FFFFFF00FFFFFF0000FFFF0000FF
      FF0000FFFF0000FFFF0000FFFF0000FFFF0000FFFF0000FFFF00FFFFFF00FFFF
      FF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFF
      FF00FFFFFF00FFFFFF0000000000FFFFFF0000000000FFFFFF00FFFFFF00FFFF
      FF00FFFFFF00FFFFFF00FFFFFF00FFFFFF0000000000BFBF0000BFBF00000000
      0000BFBF0000BFBF0000BFBF0000BFBF0000BFBF0000BFBF0000BFBF0000BFBF
      0000BFBF0000BFBF0000BFBF000000000000FFFFFF000000000000000000FFFF
      0000FFFF000000000000FFFF00000000000000FFFF000000000000FFFF0000FF
      FF000000000000000000FFFFFF00FFFFFF00FFFFFF00FFFFFF000000FF000000
      FF000000FF000000FF000000FF000000FF000000FF007F7F7F007F7F7F00FFFF
      FF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFF
      FF00FFFFFF00FFFFFF00000000000000000000000000FFFFFF00FFFFFF00FFFF
      FF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00000000000000000000000000BFBF
      00007F7F7F00BFBF0000BFBF0000BFBF0000BFBF0000BFBF0000BFBF0000BFBF
      0000BFBF0000BFBF0000BFBF000000000000FFFFFF000000000000000000FFFF
      0000FFFF0000FFFF0000FFFF00000000000000FFFF0000FFFF0000FFFF0000FF
      FF000000000000000000FFFFFF00FFFFFF00FFFFFF00FFFFFF000000FF000000
      FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF007F7F
      7F007F7F7F00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFF
      FF0000000000FFFFFF00000000000000000000000000FFFFFF0000000000FFFF
      FF00FFFFFF00FFFFFF00FFFFFF00FFFFFF000000000000000000BFBF00007F7F
      7F00BFBF0000BFBF0000BFBF0000BFBF00000000000000000000000000000000
      000000000000BFBF0000BFBF000000000000FFFFFF0000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      00000000000000000000FFFFFF00FFFFFF00FFFFFF00FFFFFF000000FF000000
      FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000
      FF000000FF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFF
      FF0000000000FFFFFF00000000000000000000000000FFFFFF0000000000FFFF
      FF00FFFFFF00FFFFFF00FFFFFF00FFFFFF0000000000000000007F7F7F00BFBF
      0000BFBF0000BFBF0000BFBF0000BFBF000000000000FFFFFF00FFFFFF00FFFF
      FF0000000000BFBF0000BFBF000000000000FFFFFF0000000000000000000000
      FF000000FF000000FF000000FF000000000000FF000000FF000000FF000000FF
      00000000000000000000FFFFFF00FFFFFF00FFFFFF00FFFFFF000000FF000000
      FF000000FF000000FF000000FF000000FF000000FF000000FF000000FF000000
      FF007F7F7F00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFF
      FF0000000000FFFFFF0000000000FFFFFF0000000000FFFFFF0000000000FFFF
      FF00FFFFFF00FFFFFF00FFFFFF00FFFFFF000000000000000000BFBF0000BFBF
      0000FFFFFF00BFBF0000BFBF0000BFBF0000BFBF0000BFBF0000BFBF0000BFBF
      0000BFBF0000BFBF0000BFBF000000000000FFFFFF00FFFFFF00000000000000
      FF000000FF00000000000000FF000000000000FF00000000000000FF000000FF
      00000000000000000000FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF000000
      0000000000000000000000000000000000000000000000000000000000000000
      00007F7F7F00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFF
      FF00000000000000000000000000FFFFFF00000000000000000000000000FFFF
      FF00FFFFFF00FFFFFF00FFFFFF00FFFFFF000000000000000000BFBF0000FFFF
      FF00FFFFFF000000000000000000000000000000000000000000000000000000
      000000000000000000000000000000000000FFFFFF00FFFFFF00000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      000000000000FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFF
      FF00000000000000000000000000FFFFFF00000000000000000000000000FFFF
      FF00FFFFFF00FFFFFF00FFFFFF00FFFFFF000000000000000000FFFFFF00FFFF
      FF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00000000000000
      00000000000000000000FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF000000
      00000000FF000000FF000000FF000000000000FF000000FF000000FF00000000
      000000000000FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF000000
      0000000000000000000000000000000000000000000000000000000000000000
      00007F7F7F00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFF
      FF00FFFFFF0000000000FFFFFF00FFFFFF00FFFFFF0000000000FFFFFF00FFFF
      FF00FFFFFF00FFFFFF00FFFFFF00FFFFFF000000000000000000FFFFFF00FFFF
      FF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFF
      FF00FFFFFF00BFBF0000FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFF
      FF00000000000000000000000000000000000000000000FF0000000000000000
      0000FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF000000
      0000FFFFFF000000000000000000000000000000000000000000000000007F7F
      7F00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFF
      FF00FFFFFF00FFFFFF00000000000000000000000000FFFFFF00FFFFFF00FFFF
      FF00FFFFFF00FFFFFF00FFFFFF00FFFFFF000000000000000000FFFFFF00FFFF
      FF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF007F7F
      7F007F7F7F00BFBF0000FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFF
      FF00FFFFFF00FFFFFF0000000000000000000000000000000000FFFFFF00FFFF
      FF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFF
      FF00FFFFFF00000000000000000000000000FFFFFF0000000000FFFFFF00FFFF
      FF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFF
      FF00FFFFFF00FFFFFF00000000000000000000000000FFFFFF00FFFFFF00FFFF
      FF00FFFFFF00FFFFFF00FFFFFF00FFFFFF0000000000BFBF0000BFBF0000BFBF
      0000BFBF0000BFBF0000BFBF0000BFBF0000BFBF0000BFBF0000BFBF0000BFBF
      0000BFBF0000BFBF0000FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFF
      FF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFF
      FF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFF
      FF00FFFFFF000000000000000000FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFF
      FF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00FFFF
      FF00FFFFFF00FFFFFF00000000000000000000000000FFFFFF00FFFFFF00FFFF
      FF00FFFFFF00FFFFFF00FFFFFF00FFFFFF00424D3E000000000000003E000000
      2800000040000000200000000100010000000000000100000000000000000000
      000000000000000000000000FFFFFF0000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      0000000000000000000000000000000000000000000000000000000000000000
      00000000000000000000000000000000}
  end
  object DataSource1: TDataSource
    AutoEdit = False
    DataSet = Table1
    OnStateChange = DataSource1StateChange
    Left = 452
    Top = 20
  end
  object Table1: TTable
    Active = True
    AfterInsert = Table1AfterInsert
    BeforeEdit = Table1BeforeEdit
    AfterPost = Table1AfterPost
    BeforeDelete = Table1BeforeDelete
    AfterDelete = Table1AfterDelete
    DatabaseName = 'DBDEMOS'
    IndexFieldNames = 'Company'
    TableName = 'CUSTOMER.DB'
    Left = 424
    Top = 20
  end
end
//unit1.dfm end
//unit1.pas begin
unit Unit1;
interface
uses
  Windows  Messages  SysUtils  Classes  Graphics  Controls  Forms  Dia
logs
  StdCtrls  DB  DBTables  ComCtrls  Grids  DBGrids  ExtCtrls
  DBCtrls  Mask  ImgList;
type
  TForm1 = class(TForm)
    TreeView1: TTreeView;
    ImageList1: TImageList;
    DataSource1: TDataSource;
    DBEdit1: TDBEdit;
    Label1: TLabel;
    Label2: TLabel;
    DBEdit2: TDBEdit;
    Table1: TTable;
    Label3: TLabel;
    DBNavigator1: TDBNavigator;
    Label4: TLabel;
    DBEdit3: TDBEdit;
    DBEdit4: TDBEdit;
    function  GetFieldList: TStringList;
    procedure FormCreate(Sender: TObject);
    procedure TreeView1Change(Sender: TObject; Node: TTreeNode);
    procedure DataSource1StateChange(Sender: TObject);
    procedure Table1AfterInsert(DataSet: TDataSet);
    procedure Table1BeforeDelete(DataSet: TDataSet);
    procedure Table1BeforeEdit(DataSet: TDataSet);
    procedure Table1AfterDelete(DataSet: TDataSet);
    procedure Table1AfterPost(DataSet: TDataSet);
  private
    { Private-Deklarationen }
  public
    { Public-Deklarationen }
  end;
var
  Form1: TForm1;
  FieldList: TStringList;
implementation
uses TreeFunc;
{$R *.DFM}
function TForm1.GetFieldList: TStringList;
begin
     FieldList.clear;
     FieldList.add(Table1.fieldbyname('Country').asstring);
     FieldList.add(Table1.fieldbyname('city').asstring);
     FieldList.add(Table1.fieldbyname('Company').asstring);
     Result := FieldList;
end;
procedure TForm1.FormCreate(Sender: TObject);
begin
     FieldList := TStringList.create;
     TreeView1.items.BeginUpdate;
     Table1.first;
     while not Table1.eof do
     begin
          TreeAddItem(TreeView1  GetFieldList  Table1.getBookmark  fal
se);
          Table1.next;
     end;
     FieldList.clear;
     TreeView1.Alphasort;
     TreeView1.items.Endupdate;
//make first record selected:
     TreeView1.items[2].selected := true;
end;
procedure TForm1.TreeView1Change(Sender: TObject; Node: TTreeNode);
begin
     Datasource1.enabled := Node.data <> nil;
     if DataSource1.enabled then Table1.gotobookmark(node.data);
end;
procedure TForm1.DataSource1StateChange(Sender: TObject);
var
   ItemList: TStringList;
   Node: TTreeNode;
begin
end;
procedure TForm1.Table1AfterInsert(DataSet: TDataSet);
begin
     FieldList.clear;
end;
procedure TForm1.Table1BeforeDelete(DataSet: TDataSet);
begin
     GetFieldList;
end;
procedure TForm1.Table1BeforeEdit(DataSet: TDataSet);
begin
     GetFieldList;
end;
procedure TForm1.Table1AfterDelete(DataSet: TDataSet);
var
   CascadeDeleteLevel: Integer;
begin
     CascadeDeleteLevel := 0;
     TreeDeleteItem(TreeView1  FieldList  CascadeDeleteLevel);
end;
procedure TForm1.Table1AfterPost(DataSet: TDataSet);
begin
     TreeView1.items.beginUpdate;
     if FieldList.count > 0 then TreeDeleteItem(TreeView1  Fieldlist  
0);
     TreeView1.selected := TreeAddItem(TreeView1  GetFieldlist  Table1
.getbookmark  True);
     TreeView1.items.endUpdate;
end;
end.
 
//unit1.pas end
这个例子很好的。
--
※来源:.网易 BBS bbs.netease.com.[FROM: 202.106.104.36]
※修改:.teleme 于 Nov 29 21:56:06 修改本文.[FROM: 202.106.104.36],

TreeView和数据库相关推荐

  1. treeview调用数据库成树

    目的:将数据库中的数据与树控件绑定 背景:我们想在树控件中显示销售客户的层级列表,这个销售客户的分层是这样的,先按"大区",再按"省份",最后到"客户 ...

  2. 【原创】C#控件TreeView与数据库的操作

    在做网站时经常会碰到目录树reeView与数据库的数据操作问题 这里我在数据库中将全国的省.市动态的加到TreeView控件中,形成一种查询树作为实例. 代码如下: try{ SqlConnectio ...

  3. mysql 视图树查询_TreeView (树视图)遍历数据库的方法

    多数从事数据库编程人员都经历过,对新接触的数据库技术无论是低版本Foxbase.Access97-2000还是支持网络环境高版本的Sql Server2000和 Oracel等系统,都经过一个循循渐进 ...

  4. TreeView的用法

    http://www.delphibbs.com/keylife/iblog_show.asp?xid=25412 作者: myveremy 标题: TreeView的用法 关键字: TreeVi ...

  5. TreeView使用笔记

    TreeView由节点构成,建树通过对TreeView.items属性进行操作.Items是一个TTreeNodes对象,这是一个TTreeNode集. 一.针对TTreeNodes,也就是 Tree ...

  6. 无限分类树--Treeview

    我最近在搞一个内部资料系统开发.用到Treeview,而且要需要无限分类,还要得到每个类包含的结果集!其实最重要的是比普通树表增加一列searchid,通过这列来进行查询!废话少讲,效果图如下: 其中 ...

  7. 自学Web开发第十四天-基于VB和ASP.NET；丰富数据呈现：TreeView控件的使用及与GridView控件联动，深入研究从GridView中取数据

    自学Web开发第十四天-基于VB和ASP.NET:丰富数据呈现:TreeView控件的使用及与GridView控件联动,深入研究从GridView中取数据 GridView操作数据库后,刷新TreeV ...

  8. NET平台下Web树形结构程序设计

    .NET平台下Web树形结构程序设计 李洪根 我的上篇文章<树形结构在开发中的应用>主要是在Windows Form下的实现,下面讲一下Web Form下的实现. 概述 TreeView是 ...

  9. php两个字符串公共,C++_C语言求两个字符串的最长公共子串，本文实例讲述了C语言求两个字 - phpStudy...

    C语言求两个字符串的最长公共子串 本文实例讲述了C语言求两个字符串的最长公共子串的方法.分享给大家供大家参考.具体实现方法如下: #include "stdio.h" #inclu ...

最新文章

  1. ASP.NET MVC项目 解决session失效
  2. BZOJ 4720: [Noip2016]换教室
  3. 微服务架构的实施现状
  4. 第一节：WebApi的纯原生态的RestFul风格接口和路由规则介绍
  5. 信息学奥赛一本通（1172：求10000以内n的阶乘）
  6. word2vec相似度计算_AAAI-2016 | 使用孪生递归网络的句子语义相似度计算方法
  7. 联发科MT8377 MT8389 MT6589 MT6577等芯片详细解析
  8. 使用pinyin4j将中文转换为拼音
  9. 树莓派小车python pid_树莓派小车实现转弯（创乐博套件）
  10. ubuntu环境下android开发环境安装
  11. 医学统计学计算机操作教程第3版附录答案,医学统计学课后习题集答案解析.doc...
  12. linux下安装postgresql遇到的问题（zlib library not found，readline library not found）
  13. 宝塔面板建立站点无法打开网页解决办法
  14. 更新禅道踩坑问题及禅道更新步骤
  15. java mac 加密_Algorithm：Java加密解密之MAC（消息认证码）
  16. 红米4a android 9 速度,雷军感叹科技进步速度太快！Redmi 9入门机性能已经相当于骁龙835...
  17. js实现数字时钟，按钮实现暂停开始
  18. js中for-in的用法
  19. linux -- 嵌入式linux下wifi无线网卡驱动
  20. 将应用在最近应用中隐藏

热门文章

  1. 毕业设计论文选题系统系统用例图_毕业设计管理系统UML
  2. linux-查看cpu核数
  3. 团队管理之《十人以下小团队管理手册》
  4. 《高级职称证书挂靠价格一览表》
  5. 如何下载PubMed收费文献
  6. excel行列值相同，交叉单元格高亮显示
  7. Verilog专题（二十四）Lemmings3
  8. C#应用程序与MATLAB联合编程
  9. 关于二维数组传参做形参
  10. Python搭建开发环境