unit1.pas

自己写的delphi treeView控件含demo

unit Unit1;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, DB, ADODB, ComCtrls, DBtreeView, StdCtrls, ExtCtrls, DBCtrls,
  Grids, DBGrids, Mask;

type
  TForm1 = class(TForm)
    ADOQuery1: TADOQuery;
    DataSource1: TDataSource;
    Button1: TButton;
    Button2: TButton;
    Edit2: TEdit;
    Label1: TLabel;
    DBtreeView1: TDBtreeView;
    cb: TCheckBox;
    Button3: TButton;
    Button4: TButton;
    Button5: TButton;
    DBGrid1: TDBGrid;
    DBEdit1: TDBEdit;
    procedure FormCreate(Sender: TObject);
    procedure Button1Click(Sender: TObject);
    procedure Button2Click(Sender: TObject);
    procedure Button3Click(Sender: TObject);
    procedure Button5Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.FormCreate(Sender: TObject);
begin
adoquery1.Active:=true;
dbtreeview1.loadData;
end;

procedure TForm1.Button1Click(Sender: TObject);
begin
cb.Checked:=dbtreeview1.IsNodeChecked(dbtreeview1.Selected)
end;

procedure TForm1.Button2Click(Sender: TObject);
begin
adoquery1.Close;
adoquery1.SQL.Clear;
adoquery1.SQL.Add('insert into s_menu(dm,mc,userdm) values(:dm,:mc,99)');
adoquery1.Parameters.ParamValues['dm']:=inttostr(strtoint(dbtreeview1.GetTreeDM(dbtreeview1.Selected))+1) ;
adoquery1.Parameters.ParamValues['mc']:=edit2.Text;
adoquery1.ExecSQL;
adoquery1.Close;
adoquery1.SQL.Clear;
adoquery1.SQL.Add('select * from s_menu order by dm ');
adoquery1.Open ;

dbtreeview1.loadData;
end;

procedure TForm1.Button3Click(Sender: TObject);
begin
dbtreeview1.SetNodeChecked(dbtreeview1.Selected,true);
end;

procedure TForm1.Button5Click(Sender: TObject);
begin
//adoquery1.Open ;
showmessage(ADOQuery1.FieldValues['mc']);
end;

end.