Splitter Item

Apr 02, 2024
2 minutes to read

The splitter item allows you to resize adjacent layout elements.

A parent group‘s layout affects the item’s orientation: groups whose items are arranged horizontally display vertical splitters; otherwise splitters are displayed horizontally.

Create Layout Splitter Item

Double-click the Layout Control to invoke the customization form and follow the steps below:

Click the “Add Auxiliary Item” button.
Select “Add Splitter Item” in the context menu.
Drag the item to the Layout Tree View pane.

The layout splitter’s API:

Visibility

An item’s Visible property.

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Position

An item’s Index, VisibleIndex, AlignHorz, AlignVert, AlignmentConstraint, and Offsets properties.

A parent group’s LayoutDirection and UseIndent properties.

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Appearance

An item’s LayoutLookAndFeel and CaptionOptions properties.

A parent group’s LayoutLookAndFeelException property.

The layout control’s LayoutLookAndFeel property.

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Behavior

An item’s SizeOptions.SizableHorz, SizeOptions.SizableVert, AllowCloseOnClick, AllowRemove, and Enabled properties.

An item’s OnCanResize event.

A parent group’s Locked property.

The layout control’s OptionsItem.SizableHorz and OptionsItem.SizableVert properties.

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Size

An item’s SizeOptions.Height, SizeOptions.Width, SizeOptions.MaxHeight, and SizeOptions.MaxWidth properties.

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Context Menu

Contains commonly used customization options.

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HitTest Information

For splitter items, the layout control’s GetHitTest function returns a TdxLayoutSplitterHitTest object when the customization mode is disabled. In customization mode, the function returns a TdxLayoutBasicItemHitTest object for these items.