Class ScrollViewer

Represents the class which contains the data and functionalities of scroll viewer which uses to hold the entire SfDiagram control

Inheritance

System.Object

ScrollViewer

Implements

System.ComponentModel.INotifyPropertyChanged

IScrollInfo

Namespace: Syncfusion.UI.Xaml.Diagram.Controls

Assembly: Syncfusion.SfDiagram.WPF.dll

Syntax

public sealed class ScrollViewer : ContentControl, INotifyPropertyChanged, IInternalScrollInfo, IScrollInfo

Constructors

ScrollViewer()

Initializes a new instance of the ScrollViewer class.

Declaration

public ScrollViewer()

Fields

ComputedHorizontalScrollBarVisibilityProperty

Provides information about the ComputedHorizontalScrollBarVisibility property.

Declaration

public static DependencyProperty ComputedHorizontalScrollBarVisibilityProperty

Field Value

Type
System.Windows.DependencyProperty

ComputedVerticalScrollBarVisibilityProperty

Provides information about the ComputedVerticalScrollBarVisibility property.

Declaration

public static DependencyProperty ComputedVerticalScrollBarVisibilityProperty

Field Value

Type
System.Windows.DependencyProperty

CurrentZoomProperty

Provides information about the CurrentZoom property.

Declaration

public static DependencyProperty CurrentZoomProperty

Field Value

Type
System.Windows.DependencyProperty

HorizontalOffsetProperty

Provides information about the ComputedVerticalScrollBarVisibility property.

Declaration

public static DependencyProperty HorizontalOffsetProperty

Field Value

Type
System.Windows.DependencyProperty

MaximumXProperty

Provides information about the MaximumX property.

Declaration

public static DependencyProperty MaximumXProperty

Field Value

Type
System.Windows.DependencyProperty

MaximumYProperty

Provides information about the MaximumY property.

Declaration

public static DependencyProperty MaximumYProperty

Field Value

Type
System.Windows.DependencyProperty

MinimumXProperty

Provides information about the MinimumX property.

Declaration

public static DependencyProperty MinimumXProperty

Field Value

Type
System.Windows.DependencyProperty

MinimumYProperty

Provides information about the MinimumY property.

Declaration

public static DependencyProperty MinimumYProperty

Field Value

Type
System.Windows.DependencyProperty

PageProperty

Provides information about the Page property.

Declaration

public static DependencyProperty PageProperty

Field Value

Type
System.Windows.DependencyProperty

VerticalOffsetProperty

Provides information about the VerticalOffset property.

Declaration

public static DependencyProperty VerticalOffsetProperty

Field Value

Type
System.Windows.DependencyProperty

ViewportHeightProperty

Provides information about the ViewportHeight property.

Declaration

public static DependencyProperty ViewportHeightProperty

Field Value

Type
System.Windows.DependencyProperty

ViewportWidthProperty

Provides information about the ViewportWidth property.

Declaration

public static DependencyProperty ViewportWidthProperty

Field Value

Type
System.Windows.DependencyProperty

ZoomPanTransformProperty

Provides information about the ZoomPanTransform property.

Declaration

public static DependencyProperty ZoomPanTransformProperty

Field Value

Type
System.Windows.DependencyProperty

Properties

Bottom

Gets the y-axis value of the bottom of the scroll viewer.

Declaration

public double Bottom { get; }

Property Value

Type
System.Double

Bounds

Gets the bounds value of the diagram control.

Declaration

public Rect Bounds { get; }

Property Value

Type
System.Windows.Rect

ComputedHorizontalScrollBarVisibility

Gets the visibility value of the horizontal scroll bar.

Declaration

public Visibility ComputedHorizontalScrollBarVisibility { get; }

Property Value

Type
System.Windows.Visibility

ComputedVerticalScrollBarVisibility

Gets the visibility value of the vertical scroll bar.

Declaration

public Visibility ComputedVerticalScrollBarVisibility { get; }

Property Value

Type
System.Windows.Visibility

CurrentZoom

Gets or sets the zooming level value of diagram control.

Declaration

public double CurrentZoom { get; set; }

Property Value

Type
System.Double

HorizontalOffset

Gets a value that contains the horizontal offset of the diagram control.

Declaration

public double HorizontalOffset { get; }

Property Value

Type
System.Double

Left

Gets the x-axis value of the left side of the diagram control.

Declaration

public double Left { get; }

Property Value

Type
System.Double

MaximumX

Gets the x-axis value of the right side of the diagram control.

Declaration

public double MaximumX { get; }

Property Value

Type
System.Double

MaximumY

Gets the y-axis value of the bottom side of the diagram control.

Declaration

public double MaximumY { get; }

Property Value

Type
System.Double

MinimumX

Gets or sets the x-axis value of the left side of the diagram control.

Declaration

public double MinimumX { get; set; }

Property Value

Type
System.Double

MinimumY

Gets or sets the y-axis value of the right side of the diagram control.

Declaration

public double MinimumY { get; set; }

Property Value

Type
System.Double

Page

Gets or sets the panel value of the diagram control which uses to hold diagram elements of Node , Connector and Group.

Declaration

public Panel Page { get; set; }

Property Value

Type
System.Windows.Controls.Panel

Right

Gets the x-axis value of the right side of the diagram control

Declaration

public double Right { get; }

Property Value

Type
System.Double

Top

Gets the y-axis value of the top side of the diagram control.

Declaration

public double Top { get; }

Property Value

Type
System.Double

VerticalOffset

Gets the vertical distance between the target origin and the diagram control alignment point.

Declaration

public double VerticalOffset { get; }

Property Value

Type
System.Double

Viewport

Gets the position and dimensions of the base tile for a diagram control.

Declaration

public Rect Viewport { get; }

Property Value

Type
System.Windows.Rect

ViewportHeight

Gets a value that contains the vertical size of the diagram control's viewport.

Declaration

public double ViewportHeight { get; }

Property Value

Type
System.Double

ViewportWidth

Gets a value that contains the horizontal size of the diagram control's viewport.

Declaration

public double ViewportWidth { get; }

Property Value

Type
System.Double

ZoomPanTransform

Gets or sets the composite transform values of the diagram control while Zooming and Panning operations of diagram page.

Declaration

public TransformGroup ZoomPanTransform { get; set; }

Property Value

Type
System.Windows.Media.TransformGroup

Methods

ArrangeOverride(Size)

Arranges the content of the diagram control.

Declaration

protected override Size ArrangeOverride(Size finalSize)

Parameters

Type	Name	Description
System.Windows.Size	finalSize	The final area within the parent that diagram elements should use to arrange itself and its children.

Returns

Type	Description
System.Windows.Size	The size of the diagram control.

BringIntoCenter(Rect)

To bring the specified bounds of diagram control into center of the view.

Declaration

public void BringIntoCenter(Rect bounds)

Parameters

Type	Name	Description
System.Windows.Rect	bounds	The bounds value which should be shown at center of the view.

BringIntoViewport(Rect)

To bring the specified bounds of diagram control into view.

Declaration

public void BringIntoViewport(Rect bounds)

Parameters

Type	Name	Description
System.Windows.Rect	bounds	The bounds value which should be shown into view.

MeasureOverride(Size)

Measures the content of a diagram elements.

Declaration

protected override Size MeasureOverride(Size availableSize)

Parameters

Type	Name	Description
System.Windows.Size	availableSize	The upper limit size that should not be exceeded.

Returns

Type	Description
System.Windows.Size	The computed desired limit size of the diagram elements.

OnApplyTemplate()

Called when an internal process or application calls System.Windows.FrameworkElement.ApplyTemplate which is used to build the current template's visual tree.

Declaration

public override void OnApplyTemplate()

Pan(Point)

Pans the diagram page by specified value.

Declaration

public void Pan(Point delta)

Parameters

Type	Name	Description
System.Windows.Point	delta	The point value that how much the diagram page should be pan.

PanTo(Point)

Pans the diagram page to specified position.

Declaration

public void PanTo(Point position)

Parameters

Type	Name	Description
System.Windows.Point	position	The point value where the entire diagram page should be pan.

Reset()

Clears all the panning opertions and removes all the panning relations of diagam control. Restores the panning position to origin of the diagram control by zoom level of One.

Declaration

public void Reset()

ResetPan()

Clears all the panning opertions and removes all the panning relations of diagam control. Restores the panning position to origin of the diagram control by zoom level of CurrentZoom value.

Declaration

public void ResetPan()

ResetZoom()

Clears all the zooming opertions and removes all the zooming relations of diagam control. Restores the diagram control page by zoom level of One.

Declaration

public void ResetZoom()

SetPageBackground(Object, String)

Sets the background color, border thickness, and border color of the page of the diagram control.

Declaration

public void SetPageBackground(object value, string property)

Parameters

Type	Name	Description
System.Object	value	The value for background color, border thickness or borde color.
System.String	property	The property value of the page.

ZoomPan(IZoomParameter)

To perform zooming and panning opertions to the diagram control.

Declaration

public void ZoomPan(IZoomParameter param)

Parameters

Type	Name	Description
IZoomParameter	param	A IZoomParameter value to perfom zooming and panning.

Events

PropertyChanged

Occurs when changes are detected to the diagram control's properties.

Declaration

public event PropertyChangedEventHandler PropertyChanged

Event Type

Type
System.ComponentModel.PropertyChangedEventHandler

Implements

System.ComponentModel.INotifyPropertyChanged

IScrollInfo