http://users.otenet.gr/~tsoyran/checkcomboBox.htm
Name | CheckComboBox (source Included) |
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Version | 1.7 (May 2001) for Delphi 4,5,6,7 |
Description | This is a merge of ComboBox and CheckListBox You can Multi select Items, checking - unchecking them in the dropdownlist. For every selected,unselected item it's value is inserted,deletedin the combo box line separated by comma from the other choices. You can select/unselect all with the right click menu. You can take the result in 3 different formats (quoted) ready to use in SQL New properties
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Download | the component source CheckCombo.zip |
and two demos (as I asked for) | |
the project CHCBDemo.zip | |
the project DemoExe.zip |
源码本地下载:其中包括有vc的CheckComboBox源码和delphi的源码:
https://files.cnblogs.com/chulia20002001/checkcombo_vc_delphi.rar
TCheckComboBox控件的载图:
以下给出TCheckedComboBox控件的delphi源代码和演示例程:
TCheckedComboBox控件源码 --- CheckCombo.pas
unit CheckCombo; { TCheckedComboBox ver 1.7 tested on D4,D5 ComboBox with CheckListBox When you check/uncheck an item this is added/removed in the visual part of combo. It has also a popup with Select all, unSelect all items with other additions ----------------------------------------------------------------- This component was first created 20-Deceber 1999 by Tsourinakis Antonis and code additions made by Christian Alain Ouellet UACA (ouelletchristian@uaca.com) ------------------------------------------------------------------ Can be freely used and distributed in commercial and private environments. You are free to copy and modify the source code. If you want I would like this notice to be provided as is. ----------------------------------------------------------------- feel free to contact me: tsoyran@otenet.gr http://users.otenet.gr/~tsoyran ----------------------------------------------------------------- special thanks to Jan Verhoeven email : jan1.verhoeven@wxs.nl website: http://members.xoom.com/JanVee/jfdelphi.htm for his help and to any other component creator from which a get ideas ----------------------------------------------------------------- Special Properties CapSelectAll The caption on popupmenu item for Check All ----------------------------------------------------------------- CapDeSelectAll The caption on popupmenu item for UnCheck All ----------------------------------------------------------------- NotFocusColor The color when the component has no focus ----------------------------------------------------------------- Columns Like the columns of common check box ----------------------------------------------------------------- DropDownLines The number of dropDown lines between MINDROPLINES and MAXDROPLINES; They are autoarranged if the Columns are>1 ----------------------------------------------------------------- Checked[Index: Integer] you can traverse this array to have if an item is checked or not ----------------------------------------------------------------- QuoteStyle of TCHBQuoteStyle = (qsNone,qsSingle,qsDouble) is the type with which you can set the format of the selected options in text format. ----------------------------------------------------------------- EmptyValue the caption you want to see when none is checked ----------------------------------------------------------------- Special Methods procedure Clear; ----------------------------------------------------------------- procedure SetUnCheckedAll( Sender: TObject ); procedure SetCheckedAll( Sender: TObject ); procedure SetChecked(Index: Integer; Checked: Boolean); ----------------------------------------------------------------- function CheckedCount: integer Returns the number of checked items function IsChecked ( Index: integer ) : boolean; Returns True if the Item[index] is checked ----------------------------------------------------------------- function GetText : string; As the component has no Caption this is the text with all the choises separated by comma in format depended by the value of QuoteStyle property (see history ver 1.3) ----------------------------------------------------------------- History: Ver 1.1 2000/1/16 changes prompted by Kyriakos Tasos - corrections onenter events onexit events - additions onchange event CheckedCount integer The dropdownlistbox closes with the ESC character - changes the internal glyph image name ----------------------------------------------------------------- Ver 1.2 2000/1/31 changes prompted by Amilcar Dornelles da Costa Leite" - corrections SetChecked(Index: Integer; Checked: Boolean); is now working and by code ----------------------------------------------------------------- Ver 1.3 2000/4/8 changes prompted by Jayan Chandrasekhar, Riyadh, Saudi Arabia" -additions property QuoteStyle :qsNone,qsSingle,qsDouble; so if the Selected values are Germany,UK,USA,Russia the GetText function returns case qsNone -> Germany,UK,USA,Russia case qsSingle -> 'Germany','UK','USA','Russia' case qsDouble -> "Germany","UK","USA","Russia" so you can use it, as Jayan noted. in SQL in the SELECT .. IN clause e.g. SELECT NationID, Nation FROM Country WHERE Nation In ( "Germany", "UK", "USA", "Russia" ) ----------------------------------------- Ver 1.4 2000/12/26 corrected bug prompted by "Daniel Azkona Coya" ----------------------------------------- Ver 1.5 2001/02/03 corrected the behavor that main form's caption becomes inactive The solution prompted in borland.public.delphi.vcl.components.writing:37068 for popup forms by "Andrew Jameson" contact@softspotsoftware.com ----------------------------------------- Ver 1.6 2001/04/07 added property EmptyValue to indicate the "empty" condition asked from Philippe Requile ----------------------------------------- Ver 1.6.1 2001/04/25 added property Version for my purposes (sic) ----------------------------------------- Ver 1.7 2001/05/09 Author: Christian Alain Ouellet UACA (ouelletchristian@uaca.com) Addition event OnCloseUp that enables to save the checkbox values upon close of the combo property SortDisplay : Boolean; To control the sorting of the text property according to the order of Items appearance in the combobox's checkboxes } interface uses Windows, Messages, SysUtils,Buttons, Classes, Graphics, Controls, Forms, Dialogs, StdCtrls, Menus,CheckLst,extctrls; type // added 2000/04/08 TCHBQuoteStyle = (qsNone,qsSingle,qsDouble); TCheckedComboBox = class(TCustomPanel) private FCapSelAll, FCapDeselAll : string; FEdit : TEdit; FButton : TSpeedButton; FItems : TStrings; FPrivForm : TForm; FListBox : TCheckListBox; FPopup : TPopupMenu; FSelectAll : TMenuItem; FDeSelectAll : TMenuItem; FNotFocusColor : TColor; FSorted : Boolean; FQuoteStyle : TCHBQuoteStyle; // added 2000/04/08 FCheckedCount : integer; FColumns : integer; FSortDisplay : Boolean; // ver 1.7 2001\05\09 by Christian Alain Ouellet FDropDownLines : integer; FOnCloseUp : TNotifyEvent; // ver 1.7 2001\05\09 by Christian Alain Ouellet FOnChange : TNotifyEvent; FOnEnter : TNotifyEvent; FOnExit : TNotifyEvent; FEmptyValue : String; // ver 1.6 FStrResult : String; // ver 1.6 FVersion : String; // ver 1.6.1 procedure SetItems(AItems : TStrings); procedure ToggleOnOff( Sender : TObject ); procedure KeyListBox(Sender: TObject; var Key: Word;Shift: TShiftState); procedure CMFontChanged(var Message: TMessage); message CM_FONTCHANGED; procedure CMEnabledChanged(var Message: TMessage); message CM_ENABLEDCHANGED; procedure WMSize(var Message: TWMSize); message WM_SIZE; procedure ShowCheckList(Sender: TObject); procedure CloseCheckList( Sender : TObject ); procedure ItemsChange(Sender : TObject); procedure SetSorted(Value: Boolean); procedure AutoSize; procedure AdjustHeight; procedure EditOnEnter(Sender: TObject); procedure EditOnExit(Sender: TObject); procedure SetNotFocusColor(value:TColor); procedure SetColumns(value : integer); procedure SetChecked(Index: Integer; Checked: Boolean); procedure SetDropDownLines(value : integer); function GetChecked(Index: Integer): Boolean; procedure SetEmptyValue(value:String);// version 1.6 procedure RedrawIfNeeded; // version 1.6 procedure SetVisibleText; // version 1.6 procedure SetVersion(value:String); // version 1.6.1; function SortTextProperty(s: String): String; // ver 1.7 2001\05\09 by Christian Alain Ouellet procedure Change; protected procedure CreateWnd; override; public constructor Create ( AOwner : TComponent ); override; destructor Destroy; override; procedure Clear; procedure SetUnCheckedAll( Sender: TObject ); procedure SetCheckedAll( Sender: TObject ); function IsChecked ( Index: integer ) : boolean; function GetText : string; property Checked[Index: Integer]: Boolean read GetChecked write SetChecked; property CheckedCount: integer read FCheckedCount; published property Items: TStrings read FItems write SetItems; property CapSelectAll: String read FCapSelAll write FCapSelAll; property CapDeSelectAll: String read FCapDeselAll write FCapDeselAll; property NotFocusColor: TColor read FNotFocusColor write SetNotFocusColor; property Sorted : Boolean read FSorted write SetSorted default False; property QuoteStyle : TCHBQuoteStyle // added 2000/04/08 read FQuoteStyle write FQuoteStyle default qsNone; property Columns : integer read FColumns write SetColumns default 0; property DropDownLines: integer read FDropDownLines write SetDropDownLines default 6; property EmptyValue : String // ver 1.6 read FEmptyValue write SetEmptyvalue; property SortDisplay : Boolean // ver 1.7 read FSortDisplay write FSortDisPlay default False; // events property OnChange: TNotifyEvent read FOnChange write FOnChange; property OnEnter : TNotifyEvent read FOnEnter write FOnEnter; property OnExit: TNotifyEvent read FOnExit write FOnExit; property OnCloseUp : TNotifyEvent Read FOnCloseUp Write FOnCloseUp; // ver 1.7 by Christian Alain Ouellet // from panel property Ctl3D; property Cursor; property Enabled; property Font; property ParentColor; property ParentCtl3D; property ParentFont; property ParentShowHint; property ShowHint; property TabOrder; property TabStop; property Version :string read FVersion write SetVersion; // ver 1.6.1 property Visible; property OnClick; property OnMouseDown; property OnMouseMove; property OnMouseUp; property OnResize; property OnStartDrag; end; procedure Register; implementation {$R *.res} const Delimit = ','; MAXSELLENGTH = 256; MINDROPLINES = 6; MAXDROPLINES = 10; resourcestring sFCapSelAll = '&Select All'; sFCapDeselAll = '&DeSelect All'; sNoMoreLength = 'There is no room for Selected'; sDefaultPrompt= '<none>'; {TCheckedComboBox} constructor TCheckedComboBox.Create ( AOwner : TComponent ); begin inherited Create( AOwner ); Fversion := '1.7'; FDropDownLines := MINDROPLINES; FColumns := 0; FQuoteStyle := qsNone; // added 2000/04/08 FCheckedCount := 0; FNotFocusColor := clWhite; Caption := ''; FCapSelAll := sFCapSelAll; FCapDeselAll := sFCapDeselAll; BevelOuter := bvLowered; Height := 24; Width := 121; FEmptyValue := sDefaultPrompt; // 1.6 FStrResult := ''; // 1.6 FSortDisplay := False; // 1.7 FItems := TStringList.Create; TStringList(FItems).OnChange := ItemsChange; FEdit := TEdit.Create(Self); FEdit.Parent := Self; FEdit.ParentColor := false; FEdit.color := clWhite; FEdit.ReadOnly := True; FButton := TSpeedButton.Create(Self); with FButton do begin Glyph.LoadFromResourceName(HInstance, 'BTNCHECKPOPUP'); Parent := Self; FButton.Width := 16; FButton.Height:= Self.Height-2; FButton.Top := Self.Top+2; NumGlyphs := 1; Parent := Self; Layout := blGlyphRight; OnClick := ShowCheckList; end; Fedit.Text := FEmptyValue; // 1,6 FEdit.OnEnter := EditOnEnter; FEdit.OnExit := EditOnExit; // Create a form with its contents FPrivForm := TForm.Create( self ); FPrivForm.Color := clWindow; // Create CheckListBox FListBox := TCheckListBox.Create( FPrivForm ); FListBox.Parent := FPrivForm; FListBox.Ctl3D := False; FListBox.Columns := FColumns; FListBox.Align := alClient; FListBox.OnClickCheck := ToggleOnOff; FListBox.OnKeyDown := KeyListBox; // Create PopUp FPopUp := TPopupMenu.Create( FListBox ); FSelectAll := TMenuItem.Create( FPopUp ); FSelectAll.Caption := FCapSelAll; FDeSelectAll := TMenuItem.Create( FPopUp ); FDeSelectAll.Caption := FCapDeselAll; FPopUp.Items.Insert( 0, FSelectAll ); FPopUp.Items.Insert( 1, FDeSelectAll ); FSelectAll.OnClick := SetCheckedAll; FDeSelectAll.OnClick := SetUnCheckedAll; FListBox.PopupMenu := FPopUp; end; destructor TCheckedComboBox.Destroy; begin FEdit.free; FSelectAll.Free; FDeSelectAll.Free; FPopup.Free; FButton.Free; FListBox.Free; FItems.Free; FPrivForm.Free; inherited Destroy; end; //====================== Show - Close List Box procedure TCheckedComboBox.ShowCheckList( Sender : TObject ); var ScreenPoint : TPoint; begin if FButton.tag=1 then // Jan Verhoeven begin FButton.tag:=0; exit end; Click; if Fcolumns > 1 then FDropDownLines := FlistBox.Items.Count div Fcolumns+1; if FDropDownLines < MINDROPLINES then FDropDownLines := MINDROPLINES; if FDropDownLines > MAXDROPLINES then FDropDownLines := MAXDROPLINES; // Assign Form coordinate and show ScreenPoint := Parent.ClientToScreen( Point( self.Left, self.Top+self.Height ) ); FSelectAll.Caption := FCapSelAll; FDeSelectAll.Caption := FCapDeselAll; with FPrivForm do begin Font := self.Font; Left := ScreenPoint.X; Top := ScreenPoint.Y; Width := self.Width; Height := ( FDropDownLines * FlistBox.ItemHeight+4{ FEdit.Height }); BorderStyle := bsNone; OnDeactivate := CloseCheckList; end; if FPrivForm.Height + ScreenPoint.y > Screen.Height-20 then FPrivForm.Top := ScreenPoint.y-FprivForm.Height-self.height ; FPrivForm.Show; // added 2001/02/03 to catch the innactive form caption SendMessage(TWinControl(Self.Owner).Handle, WM_NCACTIVATE, Integer(true),0); end; procedure TCheckedComboBox.CloseCheckList( Sender : TObject ); var pt:TPoint; begin // code added by Jan Verhoeven // check if the mouse is over the combobox button // pt:=mouse.CursorPos; // this doesn't work on delphi 3 GetCursorPos(pt); pt:=FButton.ScreenToClient(pt); with Fbutton do begin if (pt.x>0) and (pt.x<width) and (pt.y>0) and (pt.y<height) then tag:=1 else tag:=0 end; FPrivForm.Close; // ver 1.7 Added 2001\05\09 by Christian Alain Ouellet for OnCloseUp Event if Assigned(FOnCloseUp) then FOnCLoseUp(Sender); end; //=========================================== // exanines if string (part) exist in string (source) // where source is in format part1[,part2] function PartExist(const part, source:string):Boolean; var m :integer; temp1,temp2 :string; begin temp1 := Copy(Source,1,MAXSELLENGTH); Result := part=temp1; while not result do begin m := Pos(Delimit,temp1); if m>0 then temp2 := Copy(temp1,1,m-1) else temp2 := temp1; Result := part=temp2; if (Result) or (m=0) then break; temp1 := Copy(temp1,m+1,MAXSELLENGTH); end; end; { removes a string (part) from another string (source) when source is in format part1[,part2] } function RemovePart(const part, source :string):string; var lp,p :integer; s1,s2:string; begin result := source; s1 := Delimit+part+Delimit; s2 := Delimit+source+Delimit; p := Pos(s1,s2); if p>0 then begin lp := Length(part); if p=1 then result := Copy(source,p+lp+1,MAXSELLENGTH) else begin result := Copy(s2,2,p-1)+Copy(s2,p+lp+2,MAXSELLENGTH); result := Copy(result,1,length(result)-1); end; end; end; function Add(const sub:string;var str:string):boolean; begin result := false; if length(str)+length(sub)+1>= MAXSELLENGTH then begin ShowMessage(sNoMoreLength); exit; end; if str = '' then begin str := sub; result := true; end else if not PartExist(sub,str) then begin str := str+Delimit+ sub; result := true; end; end; function Remove(const sub:string; var str:string):boolean; var temp:string; begin result := false; if str <> '' then begin temp := RemovePart(sub,str); if temp<>str then begin str := temp; result := true; end; end; end; function TCheckedComboBox.SortTextProperty(s: String): String; var i, IndexPos : Integer; TmpStrLst : TStringList; begin Result := ''; TmpStrLst := TStringList.Create; try TmpStrLst.CommaText := s; TmpStrLst.Sort; i := 0; while TmpStrLst.Count > 0 do begin IndexPos := -1; if TmpStrLst.Find(Self.Items[i], IndexPos) then begin if TmpStrLst.Count = 1 then Result := Result + TmpStrLst.Strings[IndexPos] else Result := Result + TmpStrLst.Strings[IndexPos] + Delimit; TmpStrLst.Delete(IndexPos); end; Inc(i); end; finally TmpStrLst.Free; end; end; procedure TCheckedComboBox.ToggleOnOff( Sender : TObject ); begin if FListBox.Checked[FListBox.itemindex] then begin if Add(FListBox.Items[FListBox.itemindex],fstrResult) then FCheckedCount := FCheckedCount + 1 end else if Remove(FListBox.Items[FListBox.itemindex],fstrResult) then FCheckedCount := FCheckedCount - 1; SetVisibleText; Change end; procedure TCheckedComboBox.KeyListBox(Sender: TObject; var Key: Word;Shift: TShiftState); begin if key = VK_ESCAPE then FPrivForm.Close else inherited end; // added 2000/04/08 function GetFormatedText(kind:TCHBQuoteStyle;str:string):string; var s : string; begin result := str; if length(str)>0 then begin s := str; case kind of qsSingle : result := ''''+ StringReplace(S, Delimit, ''',''',[rfReplaceAll])+ ''''; qsDouble : result := '"'+ StringReplace(S, Delimit, '","',[rfReplaceAll])+ '"'; end; end; end; function TCheckedComboBox.GetText : string; begin if FQuoteStyle = qsNone then result := fstrResult else result := GetFormatedText(FQuoteStyle,fstrResult); end; //========================== CheckListBox procedure TCheckedComboBox.SetDropDownLines(value : integer); begin if FDropDownLines<>value then if (value>=MINDROPLINES) and (value<=MAXDROPLINES) then FDropDownLines := value; end; procedure TCheckedComboBox.SetColumns(value : integer); begin if Fcolumns<>value then begin Fcolumns := value; FListBOx.Columns := Fcolumns; end; end; procedure TCheckedComboBox.SetCheckedAll( Sender : TObject ); var i:integer; begin fstrResult:= ''; for i:=0 to FListBox.Items.Count -1 do begin if not FListBox.Checked[i] then begin FListBox.Checked[i]:= true; end; if i=0 then fstrResult := FListBox.Items[i] else fstrResult := fstrResult+Delimit+FListBox.Items[i]; end; SetVisibleText; FCheckedCount := FListBox.Items.Count; FEdit.Repaint; change; end; procedure TCheckedComboBox.SetUnCheckedAll( Sender: TObject ); var i : integer; begin FCheckedCount := 0; with FListBox do begin for i := 0 to Items.Count-1 do if Checked[i] then Checked[i] := false; end; fstrResult:= ''; SetVisibleText; change; end; function TCheckedComboBox.IsChecked( Index: integer ) : boolean; begin result := FListBox.Checked[ Index ]; end; procedure TCheckedComboBox.SetChecked(Index: Integer; Checked: Boolean); var ok:boolean; begin if index<FlistBox.Items.Count then begin ok:= false; if not FListBox.Checked[Index] and checked then begin if Add(FListBox.Items[Index],fstrResult) then begin FCheckedCount := FCheckedCount + 1; ok := true; end; end else if FListBox.Checked[Index] and not checked then if Remove(FListBox.Items[Index],fstrResult) then begin FCheckedCount := FCheckedCount - 1; ok := true; end; if ok then begin FListBox.Checked[Index]:= Checked; SetVisibleText; Change end; end; end; Function TCheckedComboBox.GetChecked(Index: Integer): Boolean; begin if index<FlistBox.Items.Count then Result := FListBox.Checked[Index] else Result := false; end; //=========== For CheckListBox Items procedure TCheckedComboBox.SetItems(AItems : TStrings); begin FItems.Assign(AItems); end; procedure TCheckedComboBox.ItemsChange(Sender : TObject); begin FlistBox.Clear; fstrResult := ''; SetVisibleText; FlistBox.Items.Assign(FItems); end; //=========== Auto Sizing routines procedure TCheckedComboBox.CMEnabledChanged(var Message: TMessage); begin inherited; FButton.Enabled := Enabled; FEdit.Enabled := Enabled; end; procedure TCheckedComboBox.AutoSize; begin AdjustHeight; FButton.Height := Height-2; FEdit.Height := Height; FEdit.width := Width - FButton.Width-3; FButton.Left := FEdit.width+1; end; procedure TCheckedComboBox.AdjustHeight; var DC: HDC; SaveFont: HFont; I: Integer; SysMetrics, Metrics: TTextMetric; begin DC := GetDC(0); GetTextMetrics(DC, SysMetrics); SaveFont := SelectObject(DC, Font.Handle); GetTextMetrics(DC, Metrics); SelectObject(DC, SaveFont); ReleaseDC(0, DC); if NewStyleControls then begin if Ctl3D then I := 8 else I := 6; I := GetSystemMetrics(SM_CYBORDER) * I; end else begin I := SysMetrics.tmHeight; if I > Metrics.tmHeight then I := Metrics.tmHeight; I := I div 4 + GetSystemMetrics(SM_CYBORDER) * 4; end; Height := Metrics.tmHeight + I; end; procedure TCheckedComboBox.CreateWnd; begin inherited; AutoSize; end; procedure TCheckedComboBox.WMSize(var Message: TWMSize); begin inherited; AutoSize; end; procedure TCheckedComboBox.CMFontChanged(var Message: TMessage); begin inherited; AutoSize; invalidate; end; //===================== procedure TCheckedComboBox.EditOnEnter; begin FEdit.Color := clWhite; if Assigned(FOnEnter) then FOnEnter(Self); end; procedure TCheckedComboBox.EditOnExit; begin Fedit.Color := FNotFocusColor; if Assigned(FOnExit) then FOnExit(Self); end; procedure TCheckedComboBox.SetNotFocusColor(value:TColor); begin if FNotFocusColor <> Value then begin FNotFocusColor := Value; Fedit.Color := value; end; end; procedure TCheckedComboBox.Change; begin if Assigned(FOnChange) then FOnChange(Self); end; procedure TCheckedComboBox.Clear; begin fstrResult := ''; SetVisibleText; FItems.Clear; FListBox.Clear; end; procedure TCheckedComboBox.SetSorted(Value: Boolean); begin if FSorted <> Value then begin FSorted := Value; TStringList(FItems).Sorted := FSorted; end; end; // ver 1.6 procedure TCheckedComboBox.RedrawIfNeeded; begin if (not Focused) and IsWindowVisible(Handle) and (not (csDesigning in ComponentState)) then Invalidate; end; procedure TCheckedComboBox.SetEmptyValue(value: String); begin if fEmptyValue<>value then begin fEmptyValue:= value; SetVisibleText; RedrawIfNeeded; end; end; procedure TCheckedComboBox.SetVisibleText; begin if FStrResult = '' then FEdit.Text := FEmptyValue else if FSortDisplay then FEdit.Text := SortTextProperty(FStrResult) else FEdit.Text := FStrResult; end; //=================== procedure Register; begin RegisterComponents('Samples', [TCheckedComboBox]); end; procedure TCheckedComboBox.SetVersion(value: String); begin // read only end; end.
TCheckedComboBox控件演示例程delphi 源码
UnDemoChBox.pas
unit UnDemoChBox; interface uses Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs, ExtCtrls, CheckCombo, StdCtrls, CheckLst, Spin; type TForm1 = class(TForm) CheckedComboBox1: TCheckedComboBox; Edit1: TEdit; RadioButton1: TRadioButton; Label1: TLabel; RadioButton2: TRadioButton; RadioButton3: TRadioButton; Button1: TButton; btSetChecked: TButton; sedToCheck: TSpinEdit; Bevel1: TBevel; Bevel2: TBevel; Label2: TLabel; Label4: TLabel; CheckBox1: TCheckBox; Button2: TButton; Button3: TButton; Label5: TLabel; Button4: TButton; Label6: TLabel; Label7: TLabel; Label8: TLabel; Label9: TLabel; Bevel3: TBevel; Button5: TButton; procedure Button1Click(Sender: TObject); procedure btSetCheckedClick(Sender: TObject); procedure CheckedComboBox1Change(Sender: TObject); procedure CheckBox1Click(Sender: TObject); procedure Button2Click(Sender: TObject); procedure Button3Click(Sender: TObject); procedure Button4Click(Sender: TObject); procedure FormShow(Sender: TObject); procedure Button5Click(Sender: TObject); private { Private declarations } public { Public declarations } end; var Form1: TForm1; implementation {$R *.DFM} procedure TForm1.Button1Click(Sender: TObject); begin if RadioButton1.Checked then CheckedComboBox1.QuoteStyle := qsNone else if RadioButton2.Checked then CheckedComboBox1.QuoteStyle := qsDouble else CheckedComboBox1.QuoteStyle := qsSingle; Edit1.Text := CheckedComboBox1.GetText; end; procedure TForm1.btSetCheckedClick(Sender: TObject); begin if sedToCheck.Value<CheckedComboBox1.Items.count then CheckedComboBox1.Checked[sedToCheck.Value] := true; end; procedure TForm1.Button4Click(Sender: TObject); begin if sedToCheck.Value<CheckedComboBox1.Items.count then CheckedComboBox1.Checked[sedToCheck.Value] := false; end; procedure TForm1.CheckedComboBox1Change(Sender: TObject); begin label2.Caption := IntToStr(CheckedComboBox1.CheckedCount); end; procedure TForm1.CheckBox1Click(Sender: TObject); begin CheckedComboBox1.SortDisplay := CheckBox1.Checked; end; procedure TForm1.Button2Click(Sender: TObject); begin CheckedComboBox1.SetCheckedAll(self); end; procedure TForm1.Button3Click(Sender: TObject); begin CheckedComboBox1.SetUnCheckedAll(self); end; procedure TForm1.FormShow(Sender: TObject); begin Label9.Caption := CheckedComboBox1.Version; end; procedure TForm1.Button5Click(Sender: TObject); begin close end; end.
项目文件代码:DemoChBox.dpr
program DemoChBox; uses Forms, UnDemoChBox in 'UnDemoChBox.pas' {Form1}, //CheckComboSpec in 'CheckComboSpec.pas', CheckCombo in 'CheckCombo.pas'; {$R *.RES} begin Application.Initialize; Application.CreateForm(TForm1, Form1); Application.Run; end.