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VCL Controls
What's New
Installation
Express Cross Platform Library
ExpressQuantumGrid Suite
ExpressEditors Library
ExpressBars Suite
ExpressCharts Suite
ExpressReports Suite
ExpressRichEditControl Suite
ExpressSkins Library
ExpressScheduler Suite
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ExpressLayoutControl Suite
Layout Elements
Concepts
Customization Capabilities
Design-Time Features
How To...
API Reference
dxLayoutCommon
dxLayoutContainer
IdxLayoutContainerObject
IdxLayoutContainerOwner
TdxCaptionLayout
TdxCustomLayoutAutoCreatedGroup
TdxCustomLayoutCheckableItem
TdxCustomLayoutCheckableItemCaptionOptions
TdxCustomLayoutElementViewInfo
TdxCustomLayoutGroup
TdxCustomLayoutGroupButton
TdxCustomLayoutGroupButtons
TdxCustomLayoutGroupClass
TdxCustomLayoutHitTest
TdxCustomLayoutItem
TdxCustomLayoutItemCaptionOptions
TdxCustomLayoutItemClass
TdxCustomLayoutItemElementViewInfo
TdxCustomLayoutItemHitTest
TdxCustomLayoutItemImageOptions
TdxCustomLayoutItemOptions
TdxCustomLayoutItemStorableCaptionOptions
TdxCustomLayoutItemViewInfo
TdxCustomLayoutLabeledItem
TdxLayoutAlignHorz
TdxLayoutAlignVert
TdxLayoutAlignmentConstraint
TdxLayoutAlignmentConstraintKind
TdxLayoutAutoAlign
TdxLayoutAutoAligns
TdxLayoutAutoCreatedGroup
TdxLayoutAvailableItemsViewKind
TdxLayoutBasicItem
TdxLayoutBasicItemHitTest
TdxLayoutBasicItemViewInfo
TdxLayoutCellItemCellViewInfo
TdxLayoutCellItemViewInfo
TdxLayoutCheckBoxItem
TdxLayoutCheckBoxItemCaptionOptions
TdxLayoutCheckBoxItemCheckBoxOptions
TdxLayoutClientAreaHitTest
TdxLayoutContainer
TdxLayoutContainerObject
TdxLayoutContainerPersistent
TdxLayoutContainerViewInfo
TdxLayoutControlCustomCustomizeForm
TdxLayoutControlCustomCustomizeFormClass
TdxLayoutControlItem
TdxLayoutControlItemControlViewInfo
TdxLayoutControlItemViewInfo
TdxLayoutCustomizeFormAvailableItemsHitTest
TdxLayoutCustomizeFormHitTest
TdxLayoutCustomizeFormMenuItem
TdxLayoutCustomizeFormMenuItems
TdxLayoutCustomizeFormTreeViewItemsHitTest
TdxLayoutCustomizeFormUpdateType
TdxLayoutCustomizeFormUpdateTypes
TdxLayoutDirection
TdxLayoutDirectionalItem
TdxLayoutDragDropMode
TdxLayoutDropAreaPart
TdxLayoutEmptySpaceItem
TdxLayoutGroup
TdxLayoutGroupButton
TdxLayoutGroupButtonOptions
TdxLayoutGroupButtons
TdxLayoutGroupButtonsAlignment
TdxLayoutGroupCaptionOptions
TdxLayoutGroupCheckBoxButton
TdxLayoutGroupClass
TdxLayoutGroupExpandingEvent
TdxLayoutGroupHitTest
TdxLayoutGroupScrollMode
TdxLayoutGroupScrollOptions
TdxLayoutGroupTabChangingEvent
TdxLayoutGroupWrapItemsMode
TdxLayoutImageItem
TdxLayoutImageOptions
TdxLayoutItem
TdxLayoutItemCanResizeEvent
TdxLayoutItemCaptionOptions
TdxLayoutItemCaptionVisibleElement
TdxLayoutItemCaptionVisibleElements
TdxLayoutItemControlAlignHorz
TdxLayoutItemControlAlignVert
TdxLayoutItemControlAreaAlignment
TdxLayoutItemControlOptions
TdxLayoutItemHitTest
TdxLayoutLabeledItem
TdxLayoutLabeledItemCaptionOptions
TdxLayoutLabeledItemCustomCaptionOptions
TdxLayoutLabeledItemViewInfo
TdxLayoutNonLabeledItem
TdxLayoutNonLabeledItemCaptionOptions
TdxLayoutNoneHitTest
TdxLayoutOffsets
TdxLayoutPadding
TdxLayoutRadioButtonItem
TdxLayoutRadioButtonItemCaptionOptions
TdxLayoutRealAlignHorz
TdxLayoutRealAlignVert
TdxLayoutSeparatorItem
TdxLayoutSeparatorItemCaptionOptions
TdxLayoutSizeHitTest
TdxLayoutSizeOptions
TdxLayoutSizeOptionsValue
TdxLayoutSizeOptionsValues
TdxLayoutSplitterHitTest
TdxLayoutSplitterItem
TdxLayoutSplitterItemMovedEvent
TdxLayoutSplitterItemMovedEventArgs
TdxLayoutTabbedGroupHitTest
TdxLayoutTabbedOptions
TdxUndoRedoManager
dxDefaultLayoutCustomizeFormMenuItems
dxLayoutItemControlDefaultMinHeight
dxLayoutItemControlDefaultMinSize
dxLayoutItemControlDefaultMinWidth
htAvailableItems
htBasicItem
htClientArea
htCustomizeForm
htError
htGroup
htItem
htNone
htSizeHandle
htTreeViewItems
dxLayoutControl
dxLayoutLookAndFeels
dxLayoutSelection
ExpressNavBar Suite
ExpressPivotGrid Suite
ExpressVerticalGrid Suite
ExpressDocking Library
ExpressMemData
ExpressDataController
ExpressSpellChecker Suite
ExpressMapControl Suite
ExpressGanttControl Suite
ExpressGaugeControl Suite
ExpressTileControl Suite
ExpressFlowChart Suite
ExpressFlowChart Editor
ExpressOrgChart Suite
ExpressPageControl Suite
ExpressWizardControl Suite
General Information
Support Services
Install Trial Version
Install Registered Products
NuGet Packages
Install Updates
Security Information
UI Localization
IDE Productivity Tools
CodeRush for Visual Studio (FREE)
QA/Web Testing Tools
TestCafe Studio
Desktop UI Controls
Controls
WinForms
WPF
VCL (Delphi & C++Builder)
FREE UTILITIES
WinForms Skin Editor
WPF Theme Designer
Frameworks and Libraries
AI Integration
XAF - Cross-Platform .NET App UI
XPO - .NET ORM Library (FREE)
XPO Profiler
Core Libraries
Drawing Graphics Library
.NET App Security & Web API Service (FREE)
Web UI Controls
Controls and Extensions
DevExtreme (Angular, React, Vue, jQuery)
Blazor (Server, WebAssembly, and Hybrid)
ASP.NET Core
ASP.NET Web Forms
ASP.NET MVC 5
ASP.NET MVC 5 (JavaScript-based)
ASP.NET Bootstrap
FREE UTILITIES
ASP.NET Theme Builder
ASP.NET Theme Deployer
Mobile
.NET MAUI
PDF & Office Document APIs
Word (DOCX, DOC)
Excel (XLSX, XLS)
PowerPoint (PPTX)
PDF
Reporting & Analytics
DevExpress Reports (all supported platforms)
Report & Dashboard Server
BI Dashboard
End-User Documentation
Interface Elements for Desktop
Interface Elements for Web
Dashboard for Desktop
Dashboard for Web
htError Constant
Declaration
const htError = -1;
See Also
dxLayoutContainer Unit