ZapPanel Class
Represents a panel that positions child elements in sequential order, either horizontally or vertically.
public class ZapPanel : PanelBase, ILogicalParent, IVisualParent, IOrientedElement
- Implements:
- ILogicalParent IVisualParent IOrientedElement
Constructors
ZapPanel()
Initializes an instance of the class.
public ZapPanel()
Properties
AreChildrenWrapped
Indicates whether the child items are wrapped around the item currently centered.
CanHorizontallyScroll
Gets or sets a value that indicates whether scrolling on the horizontal axis is possible.
public bool CanHorizontallyScroll { get; set; }
Property Value
- bool:
trueif scrolling is possible; otherwise,false. This property has no default value.
CanVerticallyScroll
Gets or sets a value that indicates whether scrolling on the vertical axis is possible.
public bool CanVerticallyScroll { get; set; }
Property Value
- bool:
trueif scrolling is possible; otherwise,false. This property has no default value.
ExtentHeight
Gets the vertical size of the extent.
public double ExtentHeight { get; }
Property Value
ExtentWidth
Gets the horizontal size of the extent.
public double ExtentWidth { get; }
Property Value
FocalIndex
The index of the focal child, which should be centered in the panel.
public int FocalIndex { get; set; }
Property Value
- int:
If set to
-1then no focal item will be used. The default value is-1.
HasLogicalOrientation
Gets a value that indicates whether this Panel arranges its descendants in a single dimension.
protected override bool HasLogicalOrientation { get; }
Property Value
HorizontalOffset
Gets the horizontal offset of the scrolled content.
public double HorizontalOffset { get; }
Property Value
IsFocalIndexAutoBound
Indicates whether the FocalIndex property is automatically bound to the associated Selector.SelectedIndex property when used as an items host.
LogicalOrientation
The Orientation of the panel, if the panel supports layout in only a single dimension.
protected override Orientation LogicalOrientation { get; }
Property Value
- Orientation:
The Orientation of the panel. This property has no default value.
Orientation
The orientation that the child elements are arranged.
public Orientation Orientation { get; set; }
Property Value
- Orientation:
The default value is
Orientation.Vertical.
ScrollOwner
Gets or sets a ScrollViewer element that controls scrolling behavior.
public ScrollViewer? ScrollOwner { get; set; }
Property Value
- ScrollViewer:
A ScrollViewer element that controls scrolling behavior. This property has no default value.
VerticalOffset
Gets the vertical offset of the scrolled content.
public double VerticalOffset { get; }
Property Value
- double:
A double that represents, in device independent pixels, the vertical offset of the scrolled content. Valid values are between zero and the ExtentHeight minus the ViewportHeight. This property has no default value.
ViewportHeight
Gets the vertical size of the viewport for this content.
public double ViewportHeight { get; }
Property Value
ViewportWidth
Gets the horizontal size of the viewport for this content.
public double ViewportWidth { get; }
Property Value
Methods
ArrangeElements(IList<UIElement>, Size)
Positions the specified elements and determines a size for a FrameworkElement-derived class.
public override Size ArrangeElements(IList<UIElement> elements, Size finalSize)
| Parameter | Type | Description |
|---|---|---|
| elements | IList<UIElement> | The elements to be arranged. |
| finalSize | Size | The final area within the parent that this element should use to arrange itself and the specified elements. |
Returns
- Size:
The actual size used.
LineDown()
Scrolls down within content by one logical unit.
public void LineDown()
LineLeft()
Scrolls left within content by one logical unit.
public void LineLeft()
LineRight()
Scrolls right within content by one logical unit.
public void LineRight()
LineUp()
Scrolls up within content by one logical unit.
public void LineUp()
MakeVisible(Visual, Rect)
Forces content to scroll until the coordinate space of a Visual object is visible.
public Rect MakeVisible(Visual visual, Rect rectangle)
| Parameter | Type | Description |
|---|---|---|
| visual | Visual | A Visual that becomes visible. |
| rectangle | Rect | A bounding rectangle that identifies the coordinate space to make visible. |
Returns
- Rect:
A System.Windows.Rect that is visible.
MeasureElements(IList<UIElement>, Size)
Measures the size in layout required for the specified elements and determines a size for the FrameworkElement-derived class.
public override Size MeasureElements(IList<UIElement> elements, Size availableSize)
| Parameter | Type | Description |
|---|---|---|
| elements | IList<UIElement> | The elements to be measured. |
| availableSize | Size | The available size that this element can give to the specified elements. Infinity can be specified as a value to indicate that the element will size to whatever content is available. |
Returns
- Size:
The size that this element determines it needs during layout, based on its calculations of the specified elements.
MouseWheelDown()
Scrolls down within content after a user clicks the wheel button on a mouse.
public void MouseWheelDown()
MouseWheelLeft()
Scrolls left within content after a user clicks the wheel button on a mouse.
public void MouseWheelLeft()
MouseWheelRight()
Scrolls right within content after a user clicks the wheel button on a mouse.
public void MouseWheelRight()
MouseWheelUp()
Scrolls up within content after a user clicks the wheel button on a mouse.
public void MouseWheelUp()
PageDown()
Scrolls down within content by one page.
public void PageDown()
PageLeft()
Scrolls left within content by one page.
public void PageLeft()
PageRight()
Scrolls right within content by one page.
public void PageRight()
PageUp()
Scrolls up within content by one page.
public void PageUp()
SetHorizontalOffset(double)
Sets the amount of horizontal offset.
public void SetHorizontalOffset(double offset)
| Parameter | Type | Description |
|---|---|---|
| offset | double | The degree to which content is horizontally offset from the containing viewport. |
SetVerticalOffset(double)
Sets the amount of vertical offset.
public void SetVerticalOffset(double offset)
| Parameter | Type | Description |
|---|---|---|
| offset | double | The degree to which content is vertically offset from the containing viewport. |
Fields
AreChildrenWrappedProperty
Defines the AreChildrenWrapped property.
public static readonly DependencyProperty AreChildrenWrappedProperty
FocalIndexProperty
Defines the FocalIndex property.
public static readonly DependencyProperty FocalIndexProperty
IsFocalIndexAutoBoundProperty
Defines the IsFocalIndexAutoBound property.
public static readonly DependencyProperty IsFocalIndexAutoBoundProperty
OrientationProperty
Defines the Orientation property.
public static readonly DependencyProperty OrientationProperty
Inherited Members
- PanelBase.AnimationCountProperty
- PanelBase.ArrangeAnimationProperty
- PanelBase.ArrangeHeightAnimatedProperty
- PanelBase.ArrangeStateProperty
- PanelBase.ArrangeWidthAnimatedProperty
- PanelBase.ArrangeXAnimatedProperty
- PanelBase.ArrangeYAnimatedProperty
- PanelBase.IsAnimatedProperty
- PanelBase.IsLayoutUpdatePendingProperty
- PanelBase.AreLeavingElementsAnimatedProperty
- PanelBase.ArrangeElement(UIElement, bool)
- PanelBase.ArrangeElement(UIElement, Rect?, bool)
- PanelBase.ArrangeElement(PanelBase, UIElement, bool)
- PanelBase.ArrangeElement(PanelBase, UIElement, Rect?, bool)
- PanelBase.GetArrangeHeightAnimated(UIElement)
- PanelBase.SetArrangeHeightAnimated(UIElement, double)
- PanelBase.ArrangeOverride(Size)
- PanelBase.GetArrangeRectAnimated(UIElement)
- PanelBase.GetArrangeState(UIElement)
- PanelBase.SetArrangeState(UIElement, ArrangeState)
- PanelBase.GetArrangeWidthAnimated(UIElement)
- PanelBase.SetArrangeWidthAnimated(UIElement, double)
- PanelBase.GetArrangeXAnimated(UIElement)
- PanelBase.SetArrangeXAnimated(UIElement, double)
- PanelBase.GetArrangeYAnimated(UIElement)
- PanelBase.SetArrangeYAnimated(UIElement, double)
- PanelBase.GetIsAnimated(UIElement)
- PanelBase.SetIsAnimated(UIElement, bool)
- PanelBase.MeasureOverride(Size)
- PanelBase.GetVisualChild(int)
- PanelBase.OnVisualChildrenChanged(DependencyObject, DependencyObject)
- PanelBase.ArrangeAnimation
- PanelBase.ArrangeAnimationResolved
- PanelBase.IsLayoutUpdatePending
- PanelBase.AreLeavingElementsAnimated
- PanelBase.HasLeavingChildren
- PanelBase.LeavingChildren
- PanelBase.VisualChildrenCount