使用 IntraWeb (21) - 基本控件之 TIWTabControl

TIWTabControl 包含的是 TIWTabPage; 设计时通过右键菜单 Add Page 添加(再给页面添加东西时一定要先选定页面); 下面例子是动态添加的.

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TIWTabControl 所在单元及继承链:
IWCompTabControl.TIWTabControl < TIWCustomRegion < TIWHTML40Container < TIWHTMLContainer < TIWContainer < TIWBaseContainer < TScrollingWinControl < TWinControl < TControl < TComponent < TPersistent < TObject

主要成员:

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property Pages: TList //TIWTabPage 对象的集合; 但它是 TList 类型, 使用前需转换下

property ActiveTabFont: TIWFont     //当前 Tab 标签的字体

property ActiveTabColor: TIWColor   //当前 Tab 标签的背景色

property InactiveTabFont: TIWFont   //其他 Tab 标签的字体

property InactiveTabColor: TIWColor //其他 Tab 标签的背景色

property ActivePage: Integer //当前页号; 如果需要设置它将导致提交, 官方给出了通过 js 进行本地设置的方法: IWTABCONTROL1.tabPane.setSelectedIndex(i);

property BorderOptions: TIWContainerBorderOptions //它的边框选项还是比较复杂的, 个人觉得: 如果需要边框还不如套个 TIWRegion

property LayoutMgr: TIWContainerLayout  //布局管理器, 它也可以用模板(它是从 TIWCustomRegion 继承的)

property Color: TIWColor  //



property OnChange: TNotifyEvent       //

property OnAsyncChange: TIWAsyncEvent //



procedure Submit(const AValue: string)   //

procedure pageAdded(APage: TIWTabPage)   //

procedure pageRemoved(APage: TIWTabPage) //

function CreateNewPage(const APageTitle: string; const APageName: string): TIWTabPage //

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TIWTabPage:

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{IWCompTabControl.TIWTabPage < TIWCustomRegion < TIWHTML40Container < TIWHTMLContainer < TIWContainer < TIWBaseContainer < TScrollingWinControl < TWinControl < TControl < TComponent < TPersistent < TObject}



property Title: string   //

property Color: TIWColor //

property BorderOptions: TIWContainerBorderOptions //



procedure Invalidate  //

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测试:

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{先在空白窗体上放 1 个 TIWTabControl, 3 个 TIWTabPage, 2 个 TIWButton}

procedure TIWForm1.IWAppFormCreate(Sender: TObject);

var

  fPage1, fPage2, fPage3: TIWTabPage;

begin

  //动态建立 3 个 TIWTabPage

  fPage1 := IWTabControl1.CreateNewPage(' Page1 ');

  fPage2 := IWTabControl1.CreateNewPage(' Page2 ');

  fPage3 := IWTabControl1.CreateNewPage(' Page3 ');



  //让 IWButton1 具备切换标签的功能

  JavaScript.Add('var i = 0;'); //js 全局变量

  IWButton1.ScriptEvents.HookEvent('onclick', 'i++; i%=3; IWTABCONTROL1.tabPane.setSelectedIndex(i);'); //IWTABCONTROL1 或换成 IWTABCONTROL1IWCL



  IWTabControl1.Color := $efefef;

  IWTabControl1.InactiveTabColor := $efefef;

  IWTabControl1.ActiveTabColor := $0000ff;



  IWGrid1.Parent := fPage1;

  IWGrid2.Parent := fPage2;

  IWGrid3.Parent := fPage3;



  IWGrid1.RowCount := 3;

  IWGrid1.ColumnCount := 4;

  IWGrid1.BGColor := $ffeeee;

  IWGrid1.CellPadding :=4;

  IWGrid1.Align := alTop;



  IWGrid2.RowCount := 4;

  IWGrid2.ColumnCount := 5;

  IWGrid2.BGColor := $eeeeff;

  IWGrid2.CellPadding := 4;

  IWGrid2.Align := alTop;



  IWGrid3.RowCount := 5;

  IWGrid3.ColumnCount := 6;

  IWGrid3.BGColor := $eeffee;

  IWGrid3.CellPadding := 4;

  IWGrid3.Align := alTop;

end;



{测试 Pages 属性}

procedure TIWForm1.IWButton2Click(Sender: TObject);

begin

  WebApplication.ShowMessage(TIWTabPage(IWTabControl1.Pages[0]).Title); // Page1

end;

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效果图:

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