ClassListBoxPanel
Represents a virtualized panel with smooth scrolling.
Definition
Namespace:Telerik.Windows.Controls
Assembly:Telerik.Windows.Controls.dll
Syntax:
public class ListBoxPanel : VirtualizingPanel, IScrollInfoInheritance: objectListBoxPanel
Implements:
Constructors
ListBoxPanel()
Initializes a new instance of the ListBoxPanel class.
Declaration
public ListBoxPanel()Fields
ChildDefaultLengthProperty
Represents the ChildDefaultLength property.
Declaration
public static readonly DependencyProperty ChildDefaultLengthPropertyField Value
DependencyProperty
Properties
CanHorizontallyScroll
FeedsPanel reacts to this property by changing its child measurement algorithm. If scrolling in a dimension, infinite space is allowed the child; otherwise, available size is preserved.
CanVerticallyScroll
FeedsPanel reacts to this property by changing its child measurement algorithm. If scrolling in a dimension, infinite space is allowed the child; otherwise, available size is preserved.
ChildDefaultLength
Gets or sets the expected length (width or height) for the items of the panel. This is a dependency property.
Declaration
public double ChildDefaultLength { get; set; }Property Value
Remarks
The value of this property should be as close as possible to the header height of the TreeViewItem.
ExtentHeight
ExtentHeight contains the vertical size of the scrolled content element in 1/96".
ExtentWidth
ExtentWidth contains the horizontal size of the scrolled content element in 1/96".
HorizontalOffset
HorizontalOffset is the horizontal offset of the scrolled content in 1/96".
ScrollOwner
ScrollOwner is the container that controls any scrollbars, headers, etc... that are dependant on this IScrollInfo's properties.
Declaration
public ScrollViewer ScrollOwner { get; set; }Property Value
ScrollViewer
VerticalOffset
VerticalOffset is the vertical offset of the scrolled content in 1/96".
ViewportHeight
ViewportHeight contains the vertical size of content's visible range in 1/96" .
ViewportWidth
ViewportWidth contains the horizontal size of content's visible range in 1/96".
Methods
ArrangeOverride(Size)
Arranges the override.
Declaration
protected override Size ArrangeOverride(Size finalSize)Parameters
finalSize
Size
Size of the arrange.
Returns
Size
BringIndexIntoView(int)
Generates the item at the specified index and calls BringIntoView on it.
Declaration
protected override void BringIndexIntoView(int index)Parameters
index
Specify the item index that should become visible.
Exceptions
Thrown if index is out of range.
LineDown()
Scroll content by one line to the bottom. Subclasses can override this method and call SetVerticalOffset to change the behavior of what "line" means.
Declaration
public virtual void LineDown()LineLeft()
Scroll content by one line to the left. Subclasses can override this method and call SetHorizontalOffset to change the behavior of what "line" means.
Declaration
public virtual void LineLeft()LineRight()
Scroll content by one line to the right. Subclasses can override this method and call SetHorizontalOffset to change the behavior of what "line" means.
Declaration
public virtual void LineRight()LineUp()
Scroll content by one line to the top. Subclasses can override this method and call SetVerticalOffset to change the behavior of what "line" means.
Declaration
public virtual void LineUp()MakeVisible(Visual, Rect)
FeedsPanel implementation of .
Declaration
[SuppressMessage("Microsoft.Design", "CA1031:DoNotCatchGeneralExceptionTypes", Justification = "TransformToVisual throws a general exception.")]
public Rect MakeVisible(Visual visual, Rect rectangle)Parameters
visual
Visual
rectangle
Rect
Returns
Rect
Remarks
The goal is to change offsets to bring the child into view, and return a rectangle in our space to make visible. The rectangle we return is in the physical dimension the input target rectangle transformed into our pace. In the logical dimension, it is our immediate child's rectangle.
MeasureOverride(Size)
When overridden in a derived class, measures the size in layout required for child elements and determines a size for the System.Windows.FrameworkElement-derived class.
Declaration
protected override Size MeasureOverride(Size availableSize)Parameters
availableSize
Size
Returns
Size
MouseWheelDown()
Scroll content by one page to the bottom. Subclasses can override this method and call SetVerticalOffset to change the behavior of the mouse wheel increment.
Declaration
public virtual void MouseWheelDown()MouseWheelLeft()
Scroll content by one page to the left. Subclasses can override this method and call SetHorizontalOffset to change the behavior of the mouse wheel increment.
Declaration
public virtual void MouseWheelLeft()MouseWheelRight()
Scroll content by one page to the right. Subclasses can override this method and call SetHorizontalOffset to change the behavior of the mouse wheel increment.
Declaration
public virtual void MouseWheelRight()MouseWheelUp()
Scroll content by one page to the top. Subclasses can override this method and call SetVerticalOffset to change the behavior of the mouse wheel increment.
Declaration
public virtual void MouseWheelUp()OnClearChildren()
Called when the UI collection of children is cleared by the base Panel class.
Declaration
protected override void OnClearChildren()OnItemsChanged(object, ItemsChangedEventArgs)
Called when the Items collection associated with the containing ItemsControl changes.
Declaration
protected override void OnItemsChanged(object sender, ItemsChangedEventArgs args)Parameters
sender
Sender.
args
ItemsChangedEventArgs
Event arguments.
PageDown()
Scroll content by one page to the bottom. Subclasses can override this method and call SetVerticalOffset to change the behavior of what "page" means.
Declaration
public virtual void PageDown()PageLeft()
Scroll content by one page to the left. Subclasses can override this method and call SetHorizontalOffset to change the behavior of what "page" means.
Declaration
public virtual void PageLeft()PageRight()
Scroll content by one page to the right. Subclasses can override this method and call SetHorizontalOffset to change the behavior of what "page" means.
Declaration
public virtual void PageRight()PageUp()
Scroll content by one page to the top. Subclasses can override this method and call SetVerticalOffset to change the behavior of what "page" means.
Declaration
public virtual void PageUp()SetHorizontalOffset(double)
Set the HorizontalOffset to the passed value.
Declaration
public void SetHorizontalOffset(double offset)Parameters
offset
SetVerticalOffset(double)
Set the VerticalOffset to the passed value.