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 程式師世界 >> 編程語言 >> 更多編程語言 >> Delphi >> Delphi 2009 之 TCategoryPanelGroup[1]: ChevronAlignment 等

Delphi 2009 之 TCategoryPanelGroup[1]: ChevronAlignment 等

編輯:Delphi

制作過程:

  先添加一個 TCategoryPanelGroup, 再從其右鍵菜單 -> New Panel, 反復添加三個 TCategoryPanel.

  本例測試了:

  TCategoryPanelGroup 的 ChevronAlignment 屬性、CollapseAll 和 ExpandAll 方法;

  還有 TCategoryPanel 的 Collapsed 屬性.

  本例效果圖:

Delphi 2009 之 TCategoryPanelGroup[1]: ChevronAlignment 等

  代碼文件:unit Unit1;
interface
uses
 Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
 Dialogs, ExtCtrls, StdCtrls;
type
 TForm1 = class(TForm)
  CategoryPanelGroup1: TCategoryPanelGroup;
  CategoryPanel1: TCategoryPanel;
  CategoryPanel2: TCategoryPanel;
  CategoryPanel3: TCategoryPanel;
  RadioGroup1: TRadioGroup;
  Button1: TButton;
  Button2: TButton;
  Button3: TButton;
  procedure FormCreate(Sender: TObject);
  procedure RadioGroup1Click(Sender: TObject);
  procedure Button1Click(Sender: TObject);
 end;
var
 Form1: TForm1;
implementation
{$R *.dfm}
uses TypInfo;
const
 BoolArr: array[Boolean] of string = ('關閉 CPanel1','展開 CPanel1');
procedure TForm1.FormCreate(Sender: TObject);
var
 i: Integer;
begin
 CategoryPanel1.Height := ClIEntHeight div 2;
 CategoryPanel2.Height := CategoryPanel1.Height;
 CategoryPanel3.Height := CategoryPanel1.Height;
 CategoryPanel1.Caption := 'CPanel1';
 CategoryPanel2.Caption := 'CPanel2';
 CategoryPanel3.Caption := 'CPanel3';
 Button1.Tag := 1;
 Button2.Tag := 2;
 Button3.Tag := 3;
 Button2.OnClick := Button1.OnClick;
 Button3.OnClick := Button1.OnClick;
 Button1.Caption := '全部關閉';
 Button2.Caption := '全部展開';
 Button2.Click;
 RadioGroup1.Caption := 'ChevronAlignment';
 for i := 0 to 2 do
  RadioGroup1.Items.Add(GetEnumName(TypeInfo(TAlignment), i));
 RadioGroup1.ItemIndex := 0;
end;
procedure TForm1.RadioGroup1Click(Sender: TObject);
begin
 CategoryPanelGroup1.ChevronAlignment := TAlignment(RadioGroup1.ItemIndex);
end;
procedure TForm1.Button1Click(Sender: TObject);
begin
 case TButton(Sender).Tag of
  1: CategoryPanelGroup1.CollapseAll;
  2: CategoryPanelGroup1.ExpandAll;
  3: CategoryPanel1.Collapsed := not CategoryPanel1.Collapsed;
 end;
 Button3.Caption := BoolArr[CategoryPanel1.Collapsed];
end;
end.
窗體文件:object Form1: TForm1
 Left = 0
 Top = 0
 Caption = 'Form1'
 ClIEntHeight = 224
 ClIEntWidth = 334
 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 CategoryPanelGroup1: TCategoryPanelGroup
  Left = 0
  Top = 0
  Width = 193
  Height = 224
  VertScrollBar.Tracking = True
  HeaderFont.Charset = DEFAULT_CHARSET
  HeaderFont.Color = clWindowText
  HeaderFont.Height = -11
  HeaderFont.Name = 'Tahoma'
  HeaderFont.Style = []
  TabOrder = 0
  ExplicitHeight = 206
  object CategoryPanel1: TCategoryPanel
   Top = 0
   Caption = 'CategoryPanel1'
   TabOrder = 0
   ExplicitWidth = 230
  end
  object CategoryPanel2: TCategoryPanel
   Top = 200
   Caption = 'CategoryPanel2'
   TabOrder = 1
   ExplicitWidth = 230
  end
  object CategoryPanel3: TCategoryPanel
   Top = 400
   Caption = 'CategoryPanel3'
   TabOrder = 2
   ExplicitWidth = 230
  end
 end
 object RadioGroup1: TRadioGroup
  Left = 209
  Top = 8
  Width = 115
  Height = 105
  Caption = 'RadioGroup1'
  TabOrder = 1
  OnClick = RadioGroup1Click
 end
 object Button1: TButton
  Left = 221
  Top = 126
  Width = 92
  Height = 25
  Caption = 'Button1'
  TabOrder = 2
  OnClick = Button1Click
 end
 object Button2: TButton
  Left = 221
  Top = 157
  Width = 92
  Height = 25
  Caption = 'Button2'
  TabOrder = 3
 end
 object Button3: TButton
  Left = 221
  Top = 188
  Width = 92
  Height = 25
  Caption = 'Button3'
  TabOrder = 4
 end
end


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