Class

LayoutControlGroupItem

Declaration

public LayoutControlGroupItem()

Declaration

public static readonly RadProperty HeaderHeightProperty

Field Value

Declaration

public static readonly RadProperty IsExpandedProperty

Field Value

Gets or sets a value indicating whether the element size will be calculated automatically by the layout system. Value of false indicates that the element's size will not be changed when calculating the layout.

Declaration

public override bool AutoSize { get; set; }

Property Value

Overrides LayoutControlItemBase.AutoSize

Gets the container element which hosts the items within the group.

Declaration

public LayoutControlContainerElement ContainerElement { get; }

Property Value

Gets or sets a value indicating whether the element should render its border during the paint operation. This property controls the visibility of all border styles including single borders, four borders, and outer-inner borders.

Declaration

public override bool DrawBorder { get; set; }

Property Value

Overrides LayoutControlItemBase.DrawBorder

Gets the header element of the group.

Declaration

[Browsable(false)]
public CollapsiblePanelHeaderElement HeaderElement { get; }

Property Value

Gets or sets the height of the header.

Declaration

[VsbBrowsable(true)]
public int HeaderHeight { get; set; }

Property Value

Gets or sets a value indicating whether the group is currently expanded.

Declaration

public bool IsExpanded { get; set; }

Property Value

Gets the items within the group.

Declaration

public RadItemCollection Items { get; }

Property Value

Get or sets the maximum size to apply on an element when layout is calculated.

Declaration

public override Size MaxSize { get; set; }

Property Value

Overrides RadElement.MaxSize

Get or sets the minimum size to apply on an element when layout is calculated.

Declaration

public override Size MinSize { get; set; }

Property Value

Overrides RadElement.MinSize

Gets or sets a value indicating whether the line in the header element should be shown.

Declaration

[Browsable(true)]
public bool ShowHeaderLine { get; set; }

Property Value

Gets or sets a value indicating whether a horizontal line should be rendered across the element.

Declaration

[Browsable(false)]
public override bool ShowHorizontalLine { get; set; }

Property Value

Overrides LightVisualElement.ShowHorizontalLine

Gets or sets the alignment of text within the element bounds, controlling both horizontal and vertical positioning.

Declaration

[Browsable(false)]
public override ContentAlignment TextAlignment { get; set; }

Property Value

Overrides LightVisualElement.TextAlignment

Gets or sets a value indicating whether text will automatically wrap to multiple lines when it exceeds the element's width.

Declaration

[Browsable(false)]
public override bool TextWrap { get; set; }

Property Value

Overrides LightVisualElement.TextWrap

Arranges the content and child elements within the final allocated space, positioning text, images, and child elements.

Declaration

protected override SizeF ArrangeOverride(SizeF finalSize)

Parameters

Returns

Overrides LightVisualElement.ArrangeOverride(SizeF)

Called by the element when constructed. Allows inheritors to build the element tree.

Declaration

protected override void CreateChildElements()

Overrides LayoutControlItemBase.CreateChildElements()

Declaration

protected virtual LayoutControlContainerElement CreateContainerElement()

Returns

Measures the desired size of the element by calculating the space needed for content, padding, and borders.

Declaration

protected override SizeF MeasureOverride(SizeF availableSize)

Parameters

Returns

Overrides LightVisualElement.MeasureOverride(SizeF)

Raises the standard .NET PropertyChanged event to notify subscribers of property value changes using the provided event arguments.

Declaration

protected override void OnNotifyPropertyChanged(PropertyChangedEventArgs e)

Parameters

Overrides RadObject.OnNotifyPropertyChanged(PropertyChangedEventArgs)

Notifies for a change in the Parent value.

Declaration

protected override void OnParentChanged(RadElement previousParent)

Parameters

Overrides RadElement.OnParentChanged(RadElement)

Handles property change events by invalidating the fill cache and invoking the base class property change handler.

Declaration

protected override void OnPropertyChanged(RadPropertyChangedEventArgs e)

Parameters

Overrides LayoutControlItemBase.OnPropertyChanged(RadPropertyChangedEventArgs)

Called before a property value is changed, allowing for validation or cancellation of text changes.

Declaration

protected override void OnPropertyChanging(RadPropertyChangingEventArgs e)

Parameters

Overrides RadItem.OnPropertyChanging(RadPropertyChangingEventArgs)

Called when the group is expanded or collapsed to do the necessary updates.

Declaration

protected virtual void UpdateOnExpandCollapse()

Occurs when the group item is collapsed.

Declaration

public event EventHandler Collapsed

Event Value

Occurs when the group item is about to be collapsed. Cancelable.

Declaration

public event CancelEventHandler Collapsing

Event Value

Occurs when the group item is expanded.

Declaration

public event EventHandler Expanded

Event Value

Occurs when the group item is about to be expanded. Cancelable.

Declaration

public event CancelEventHandler Expanding

Event Value