使用 IntraWeb (25) - 基本控件之 TIWRegion

这应该是 IW 中最重要的容器了, 和它同父的还有 TIWTabControl

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

主要成员:

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property Align: TAlign

property Anchors: TAnchors

property BorderOptions: TIWContainerBorderOptions //设置边框的宽度、颜色、样式

property Color: TIWColor

property ClipRegion: Boolean           //对应 CSS clip, 如果控件大于区域, 是否剪切; 默认 True

property LayoutMgr: TIWContainerLayout //要套用的布局管理器

property Splitter: Boolean	       //是否提供分割线; 它出现的位置与 Align 属性有关系

property StyleRenderOptions: TIWStyleRenderOptions

property Visible: Boolean

property DoRefreshControl: Boolean

property InternalTabOrder: TTabOrder

property ContainerContext: TIWContainerContext 

property IWComponentsCount: Integer

property RenderInvisibleControls: Boolean //是否呈现隐藏的控件; 默认 False

property HorzScrollBar: TControlScrollBar

property VertScrollBar: TControlScrollBar



property OnCreate: TNotifyEvent

property OnRender: TNotifyEvent



procedure SetBounds(ALeft: Integer; ATop: Integer; AWidth: Integer; AHeight: Integer)

procedure Invalidate

function OwnerForm: TIWBaseForm

function OwnerFrame: TIWHTMLContainer

procedure Freeing(AObject: TObject)

procedure ForceAlign

procedure DisableAutoRange

procedure EnableAutoRange

procedure ScrollInView(AControl: TControl)

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RenderInvisibleControls 属性测试:

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procedure TIWForm1.IWAppFormCreate(Sender: TObject);

begin

  IWRectangle1.Visible := False;             //假如 IWRectangle1 在 IWRegion1 内, 并且已经隐藏了

  IWRegion1.RenderInvisibleControls := True; //如果不指定 RenderInvisibleControls := True 那么再从异步事件中设置 IWRectangle1.Visible := True 将无效

end;



{OnAsyncClick}

procedure TIWForm1.IWButton1AsyncClick(Sender: TObject; EventParams: TStringList);

begin

  IWRectangle1.Visible := not IWRectangle1.Visible;

end;

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Splitter 属性测试:

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{先放三个互不嵌套的 TIWRegion}

procedure TIWForm1.IWAppFormCreate(Sender: TObject);

begin

  IWRegion1.Color := $ff0000;

  IWRegion2.Color := $0000ff;

  IWRegion3.Color := $00ff00;



  IWRegion1.Align := alTop;

  IWRegion2.Align := alLeft;

  IWRegion3.Align := alClient;



  IWRegion1.Splitter := True;

  IWRegion2.Splitter := True;

end;

效果图:

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