使用 TListView 控件(2)

本例效果图:

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代码文件:

---

unit Unit1;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls, ComCtrls;

type
  TForm1 = class(TForm)
    ListView1: TListView;
    Button1: TButton;
    Button2: TButton;
    RadioButton1: TRadioButton;
    RadioButton2: TRadioButton;
    RadioButton3: TRadioButton;
    procedure FormCreate(Sender: TObject);
    procedure Button1Click(Sender: TObject);
    procedure Button2Click(Sender: TObject);
    procedure RadioButton1Click(Sender: TObject);
    procedure RadioButton2Click(Sender: TObject);
    procedure RadioButton3Click(Sender: TObject);
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.FormCreate(Sender: TObject);
begin
  ListView1.Align := alLeft;
  Button1.Caption := '添加';
  Button2.Caption := '清空';
  RadioButton1.Caption := 'ViewStyle = vsIcon';
  RadioButton2.Caption := 'ViewStyle = vsList';
  RadioButton3.Caption := 'ViewStyle = vsReport';
  RadioButton1.Checked := True;
end;

procedure TForm1.Button1Click(Sender: TObject);
var
  item: TListItem;
begin
  item := ListView1.Items.Add;
  item.Caption := 'Item' + IntToStr(ListView1.Items.Count);
end;

procedure TForm1.Button2Click(Sender: TObject);
begin
  ListView1.Clear;
end;

procedure TForm1.RadioButton1Click(Sender: TObject);
begin
  ListView1.ViewStyle := vsIcon; {这是默认值}
end;

procedure TForm1.RadioButton2Click(Sender: TObject);
begin
  ListView1.ViewStyle := vsList;
end;

procedure TForm1.RadioButton3Click(Sender: TObject);
begin
  ListView1.ViewStyle := vsReport;
  if ListView1.Columns.Count = 0 then ListView1.Columns.Add.Caption := '标题';
end;

end.

窗体文件:

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object Form1: TForm1
  Left = 0
  Top = 0
  Caption = 'Form1'
  ClientHeight = 150
  ClientWidth = 310
  Color = clBtnFace
  Font.Charset = DEFAULT_CHARSET
  Font.Color = clWindowText
  Font.Height = -11
  Font.Name = 'Tahoma'
  Font.Style = []
  OldCreateOrder = False
  OnCreate = FormCreate
  PixelsPerInch = 96
  TextHeight = 13
  object ListView1: TListView
    Left = 8
    Top = 8
    Width = 161
    Height = 121
    Columns = <>
    TabOrder = 0
  end
  object Button1: TButton
    Left = 199
    Top = 84
    Width = 75
    Height = 25
    Caption = 'Button1'
    TabOrder = 1
    OnClick = Button1Click
  end
  object Button2: TButton
    Left = 199
    Top = 115
    Width = 75
    Height = 25
    Caption = 'Button2'
    TabOrder = 2
    OnClick = Button2Click
  end
  object RadioButton1: TRadioButton
    Left = 175
    Top = 8
    Width = 127
    Height = 17
    Caption = 'RadioButton1'
    TabOrder = 3
    OnClick = RadioButton1Click
  end
  object RadioButton2: TRadioButton
    Left = 175
    Top = 31
    Width = 127
    Height = 17
    Caption = 'RadioButton2'
    TabOrder = 4
    OnClick = RadioButton2Click
  end
  object RadioButton3: TRadioButton
    Left = 175
    Top = 54
    Width = 127
    Height = 17
    Caption = 'RadioButton3'
    TabOrder = 5
    OnClick = RadioButton3Click
  end
end