void _partDesignContent_RequestBringIntoView(object sender, RequestBringIntoViewEventArgs e)
{
if (!enableBringIntoView)
{
e.Handled = true;
}
enableBringIntoView = false;
}
private void OnRequestBringIntoView(object sender, RequestBringIntoViewEventArgs e)
{
if (Keyboard.IsKeyDown(Key.Down) || Keyboard.IsKeyDown(Key.Up))
{
return;
}
e.Handled = true;
}
private void UserControl_RequestBringIntoView(object sender, RequestBringIntoViewEventArgs e)
{
if (CurrentItem != null)
{
//OnPropertyChanged("CurrentItem");
CurrentItem.RefreshData();
}
}
private void FontComboBox_RequestBringIntoView(object sender, RequestBringIntoViewEventArgs e)
{
if (((ComboBoxItem)e.TargetObject).Content == FontComboBox.SelectedItem)
{
return;
}
e.Handled = true;
}
private void DisableScrollEventHandler(object sender, RequestBringIntoViewEventArgs e)
{
// Prevent autoscroll uppon cell selections
// Such an stupid smart idea
if (!_scrolling)
{
e.Handled = true;
}
}
public void ComboBoxItem_RequestBringIntoView(object sender, RequestBringIntoViewEventArgs e)
{
if (Keyboard.IsKeyDown(Key.Down) || Keyboard.IsKeyDown(Key.Up))
{
return;
}
e.Handled = true;
}
/// <summary>
/// Handles the RequestBringIntoView event of the category combobox. Prevents annoying autoscroll.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void OnRequestBringIntoView(object sender, RequestBringIntoViewEventArgs e)
{
//Allows the keyboard to bring the items into view as expected:
if (Keyboard.IsKeyDown(Key.Down) || Keyboard.IsKeyDown(Key.Up))
{
return;
}
e.Handled = true;
}
void NotesEditor_RequestBringIntoView(object sender, RequestBringIntoViewEventArgs e)
{
// prevent scrollviewer to automaticaly adjust itself to editor
if (_trackingCaret)
{
_trackingCaret = false;
return;
}
e.Handled = true;
}
private static void OnRequestBringIntoView(object sender, RequestBringIntoViewEventArgs e)
{
LoopPanel lp = sender as LoopPanel;
DependencyObject target = e.TargetObject as DependencyObject;
if (lp.BringChildrenIntoView && target != lp)
{
UIElement child = null;
while (target != null)
{
if ((target is UIElement) &&
lp.InternalChildren.Contains(target as UIElement))
{
child = target as UIElement;
break;
}
target = VisualTreeHelper.GetParent(target);
if (target == lp)
{
break;
}
}
if (child != null &&
lp.InternalChildren.Contains(child))
{
e.Handled = true;
// determine if the child needs to be brought into view
GeneralTransform childTransform = child.TransformToAncestor(lp);
Rect childRect = childTransform.TransformBounds(new Rect(new Point(0, 0), child.RenderSize));
Rect intersection = Rect.Intersect(new Rect(new Point(0, 0), lp.RenderSize), childRect);
// if the intersection is different than the child rect, it is either not visible
// or only partially visible, so adjust the Offset to bring it into view
if (!childRect.AreVirtuallyEqual(intersection))
{
if (!intersection.IsEmpty)
{
// the child is already partially visible, so just scroll it into view
lp.Scroll((lp.Orientation == Orientation.Horizontal)
? (childRect.X.AreVirtuallyEqual(intersection.X) ? childRect.Width - intersection.Width + Math.Min(0, lp.RenderSize.Width - childRect.Width) : childRect.X - intersection.X)
: (childRect.Y.AreVirtuallyEqual(intersection.Y) ? childRect.Height - intersection.Height + Math.Min(0, lp.RenderSize.Height - childRect.Height) : childRect.Y - intersection.Y));
}
else
{
// the child is not visible at all
lp.Scroll((lp.Orientation == Orientation.Horizontal)
? (childRect.Right.StrictlyLessThan(0.0d) ? childRect.X : childRect.Right - lp.RenderSize.Width + Math.Min(0, lp.RenderSize.Width - childRect.Width))
: (childRect.Bottom.StrictlyLessThan(0.0d) ? childRect.Y : childRect.Bottom - lp.RenderSize.Height + Math.Min(0, lp.RenderSize.Height - childRect.Height)));
}
}
}
}
}
private void Page_RequestBringIntoView(object sender, RequestBringIntoViewEventArgs e)
{
foreach (FrameworkElement fwe in new FrameworkElement[] { tbInstalledProfile, btnExisting, btnNewProfile })
{
if (fwe.IsVisible && fwe.IsEnabled)
{
fwe.Focus();
return;
}
}
}
private void OnTreeViewItemRequestBringIntoView(object sender, RequestBringIntoViewEventArgs e)
{
if (internalRequestBeingIntoView)
{
internalRequestBeingIntoView = false;
}
else
{
e.Handled = true;
}
}
void BodyFocusHack(object sender, RequestBringIntoViewEventArgs e)
{
if (e.TargetObject == bodyMarkdown)
{
// Hack to prevent pane scrolling to top. Instead focus selected tree view item.
// See https://github.com/github/VisualStudio/issues/1042
var node = changesTree.GetTreeViewItem(changesTree.SelectedItem);
node?.Focus();
e.Handled = true;
}
}
private void setComboBindingAndHanldeUnsetValue(object sender, RequestBringIntoViewEventArgs e)
{
ComboBox combo = sender as ComboBox;
DataGridComboBoxColumn column = AssignedDataGridColumn as DataGridComboBoxColumn;
if (column.ItemsSource == null)
{
if (combo.ItemsSource != null)
{
IList list = combo.ItemsSource.Cast <object>().ToList();
if (list.Count > 0 && list[0] != DependencyProperty.UnsetValue)
{
combo.RequestBringIntoView -=
new RequestBringIntoViewEventHandler(setComboBindingAndHanldeUnsetValue);
list.Insert(0, DependencyProperty.UnsetValue);
combo.DisplayMemberPath = column.DisplayMemberPath;
combo.SelectedValuePath = column.SelectedValuePath;
combo.ItemsSource = list;
}
}
}
else
{
combo.RequestBringIntoView -=
new RequestBringIntoViewEventHandler(setComboBindingAndHanldeUnsetValue);
IList comboList = null;
IList columnList = null;
if (combo.ItemsSource != null)
{
comboList = combo.ItemsSource.Cast <object>().ToList();
}
columnList = column.ItemsSource.Cast <object>().ToList();
if (comboList == null ||
(columnList.Count > 0 && columnList.Count + 1 != comboList.Count))
{
columnList = column.ItemsSource.Cast <object>().ToList();
columnList.Insert(0, DependencyProperty.UnsetValue);
combo.ItemsSource = columnList;
}
combo.RequestBringIntoView +=
new RequestBringIntoViewEventHandler(setComboBindingAndHanldeUnsetValue);
}
}
private void tv1_RequestBringIntoView(object sender, RequestBringIntoViewEventArgs e)
{
base.BringIntoView();
// e.Handled = true;
var scrollViewer = tv1.Template.FindName("_tv_scrollviewer_", tv1) as ScrollViewer;
if (scrollViewer != null)
{
Dispatcher.BeginInvoke(System.Windows.Threading.DispatcherPriority.Loaded, (Action)(() => scrollViewer.ScrollToLeftEnd()));
}
}
private void TreeView_RequestBringIntoView(object sender, RequestBringIntoViewEventArgs e)
{
if (treeViewScrollViewer == null)
{
treeViewScrollViewer = TreeView.Template.FindName("_tv_scrollviewer_", TreeView) as ScrollViewer;
if (this.treeViewScrollViewer != null)
{
this.treeViewScrollViewer.ScrollChanged += new ScrollChangedEventHandler(TreeViewScrollViewerScrollChanged);
}
}
this.treeViewResetHorizScroll = true;
this.treeViewHorizScrollPos = this.treeViewScrollViewer.HorizontalOffset;
}
private static void HandleRequestBringIntoView(object sender, RequestBringIntoViewEventArgs e)
{
var treeViewItem = (TreeViewItem)sender;
if (treeViewItem.Parent == null)
{
var scrollViewer = treeViewItem.FindParent <ScrollViewer>();
if (scrollViewer != null)
{
treeViewItem.Dispatcher.BeginInvoke(() => scrollViewer.ScrollToLeftEnd());
}
}
}
private async void TabItem_RequestBringIntoView(object sender, RequestBringIntoViewEventArgs e)
{
await GetData();
SalesList.ItemsSource = Sales;
SalesList.Items.Refresh();
try
{
SalesInfos = (await SalesInfo.CreateSalesInfo(Beers, Sales)).ToList();
}
catch { }
}
private void OnRequestBringIntoView(object sender, RequestBringIntoViewEventArgs e)
{
//Allows the keyboard to bring the items into view as expected:
if (Keyboard.IsKeyDown(Key.Down) || Keyboard.IsKeyDown(Key.Up))
{
return;
}
if (((ComboBoxItem)e.TargetObject).Content == list.SelectedItem)
{
return;
}
e.Handled = true;
}
/// <summary>
/// tries to bring the content to the view
/// </summary>
/// <param name="e"></param>
protected virtual void OnRequestBringIntoView(RequestBringIntoViewEventArgs e)
{
if (e.TargetObject == this && _header != null)
{
var m = _header.TransformToVisual(this);
if (m.HasValue)
{
var bounds = new Rect(_header.Bounds.Size);
var rect = bounds.TransformToAABB(m.Value);
e.TargetRect = rect;
}
}
}
void DiagramDesignerItem_RequestBringIntoView(object sender, RequestBringIntoViewEventArgs e)
{
// no need for a diagram link to be brought into view, since it will not be done correctly anyways
if (IsDiagramLink)
{
e.Handled = true;
}
else
{
e.Handled = false;
DiagramRubberbandSelector.IgnoreRubberbandSelectionOnce = true;
//ParentCanvas.CancelRubberbandSelection();
}
}
private static void HandleBringIntoView(object sender, RequestBringIntoViewEventArgs e)
{
if (e.TargetObject == sender)
{
return;
}
TimelineTreeRow timelineTreeRow = (TimelineTreeRow)sender;
InlineStringEditor inlineStringEditor = timelineTreeRow.FindName("ItemTitle") as InlineStringEditor;
if (inlineStringEditor == null || !inlineStringEditor.IsEditing || e.TargetRect.IsEmpty)
{
return;
}
timelineTreeRow.BringIntoView(new Rect(e.TargetRect.X, e.TargetRect.Y, inlineStringEditor.ActualWidth, inlineStringEditor.ActualHeight));
e.Handled = true;
}
/// <summary>
/// The framework element on request bring into view.
/// </summary>
/// <param name="sender">
/// The sender.
/// </param>
/// <param name="e">
/// The e.
/// </param>
private void FrameworkElementOnRequestBringIntoView(
[CanBeNull] object sender,
[NotNull] RequestBringIntoViewEventArgs e)
{
if (e == null)
{
throw new ArgumentNullException(nameof(e));
}
// Allows the keyboard to bring the items into view as expected:
if (Keyboard.IsKeyDown(Key.Down) || Keyboard.IsKeyDown(Key.Up))
{
return;
}
e.Handled = true;
}
void popup_RequestBringIntoView(object sender, RequestBringIntoViewEventArgs e)
{
if (!subsequentCall)
{
if (DropDownContent != null)
{
if (DropDownContent.GetType().GetProperty("ActiveSmartPart") != null)
{
object smartPart = DropDownContent.GetType().GetProperty("ActiveSmartPart").GetValue(DropDownContent, null);
if (smartPart != null)
{
subsequentCall = true;
if (smartPart is UserControl)
{
if (((UserControl)smartPart).Content != null)
{
object content = ((UserControl)smartPart).Content;
if (content != null && content is Grid)
{
Grid grid = (Grid)content;
if (grid.RowDefinitions.Count == 2)
{
RowDefinition rowDef = grid.RowDefinitions[0];
if (rowDef.ActualHeight > (popup.Height / 3))
{
popup.Height = rowDef.ActualHeight + 200;
double newWidth = (rowDef.ActualHeight + 200) * 1.618;
if (newWidth > popup.Width)
{
popup.Width = newWidth;
}
}
}
}
}
}
}
}
}
}
}
private void TreeViewItemRequestBringIntoView(object sender, RequestBringIntoViewEventArgs e)
{
if (_treeViewScrollViewer == null)
{
_treeViewScrollViewer = TheNavigationView.Navigation.Template.FindName("_tv_scrollviewer_", TheNavigationView.Navigation) as ScrollViewer;
if (_treeViewScrollViewer != null)
{
_treeViewScrollViewer.ScrollChanged += TreeViewScrollViewerScrollChanged;
}
}
_treeViewResetHorizScroll = true;
var treeViewScrollViewer = _treeViewScrollViewer;
if (treeViewScrollViewer != null)
{
_treeViewHorizScrollPos = treeViewScrollViewer.HorizontalOffset;
}
}
void OnRequestBringIntoView(object sender, RequestBringIntoViewEventArgs e)
{
bool?targetIsOnFrontSide = GetIsOnFrontSide(e.TargetObject);
if (!targetIsOnFrontSide.HasValue)
{
return;
}
if (targetIsOnFrontSide.Value)
{
this.BringFrontSideIntoView();
}
else
{
this.BringBackSideIntoView();
}
}
private void BringIntoViewOverride(RequestBringIntoViewEventArgs e)
{
ExpandAncestors();
// Only bring header into view. Ignore children.
if (e.TargetRect.IsEmpty)
{
if (_header != null)
{
e.Handled = true;
_header.BringIntoView();
}
else
{
// Retry when loaded.
Dispatcher.BeginInvoke(DispatcherPriority.Loaded, new Action(() => _header?.BringIntoView()));
}
}
}
private void InspectionResultsGrid_RequestBringIntoView(object sender, RequestBringIntoViewEventArgs e)
{
if (_requestingModifiedBringIntoView ||
!(e?.OriginalSource is FrameworkElement source))
{
return;
}
e.Handled = true;
//Prevents adjustment of the adjusted event triggered below.
_requestingModifiedBringIntoView = true;
var newRectangle = new Rect(-HorizontalRectangleAdjustment, 0, source.ActualWidth + HorizontalRectangleAdjustment, source.ActualHeight);
source.BringIntoView(newRectangle);
_requestingModifiedBringIntoView = false;
}
private void TreeViewItem_RequestBringIntoView(object sender, RequestBringIntoViewEventArgs e)
{
if (_mSuppressRequestBringIntoView)
{
return;
}
e.Handled = true;
_mSuppressRequestBringIntoView = true;
if (sender is TreeViewItem tvi)
{
var newTargetRect = new Rect(-1000, 0, tvi.ActualWidth + 1000, tvi.ActualHeight);
tvi.BringIntoView(newTargetRect);
}
_mSuppressRequestBringIntoView = false;
}
private void treeView_RequestBringIntoView(object sender, RequestBringIntoViewEventArgs e)
{
// keep tree view from scrolling horizontally when an item is (mouse) selected
var treeViewItem = (TreeViewItem)sender;
var scrollViewer = treeView.Template.FindName("_tv_scrollviewer_", treeView) as ScrollViewer;
Point topLeftInTreeViewCoordinates = treeViewItem.TransformToAncestor(treeView).Transform(new Point(0, 0));
var treeViewItemTop = topLeftInTreeViewCoordinates.Y;
if (treeViewItemTop < 0 ||
treeViewItemTop + treeViewItem.ActualHeight > scrollViewer.ViewportHeight ||
treeViewItem.ActualHeight > scrollViewer.ViewportHeight)
{
// if the item is not visible or too "tall", don't do anything; let them scroll it into view
return;
}
// if the item is already fully within the viewport vertically, disallow horizontal scrolling
e.Handled = true;
}
private void HandleBringIntoView(RequestBringIntoViewEventArgs e)
{
for (var i = ParentTreeViewItem; i != null; i = i.ParentTreeViewItem)
{
if (!i.IsExpanded)
{
i.IsExpanded = true;
}
}
if (e.TargetRect.IsEmpty)
{
var headerElement = GetFirstHeaderElement();
if (headerElement != null)
{
headerElement.BringIntoView();
e.Handled = true;
}
}
}
/// <summary>
/// Makes sure the target is visible in the client area.
/// </summary>
/// <param name="args">RequestBringIntoViewEventArgs indicates the element and region to scroll into view.</param>
private void HandleRequestBringIntoView(RequestBringIntoViewEventArgs args)
{
DependencyObject child;
DependencyObject document;
IContentHost ich;
ReadOnlyCollection<Rect> rects;
UIElement targetUIElement;
Rect targetRect = Rect.Empty;
if (args != null && args.TargetObject != null && Document != null)
{
document = Document;
// If the passed in object is a logical child of FlowDocumentScrollViewer's Document,
// attempt to make it visible now.
// Special case: TargetObject is the document itself. Then scroll to the top (page 1).
// This supports navigating from baseURI#anchor to just baseURI.
if (args.TargetObject == document)
{
if (_contentHost != null)
{
_contentHost.ScrollToHome();
}
args.Handled = true; // Mark the event as handled.
}
else if (args.TargetObject is UIElement)
{
targetUIElement = (UIElement)args.TargetObject;
// Since entire content of FlowDocument is represented by
// bottomless page, the target has to be connected to visual tree.
// Otherwise, it is not descendant of FlowDocument.
if (RenderScope != null && RenderScope.IsAncestorOf(targetUIElement))
{
targetRect = args.TargetRect;
if (targetRect.IsEmpty)
{
targetRect = new Rect(targetUIElement.RenderSize);
}
targetRect = MakeVisible((IScrollInfo)RenderScope, targetUIElement, targetRect);
if(!targetRect.IsEmpty)
{
GeneralTransform t = RenderScope.TransformToAncestor(this);
targetRect = t.TransformBounds(targetRect);
}
args.Handled = true; // Mark the event as handled.
}
}
else if (args.TargetObject is ContentElement)
{
// Verify if TargetObject is in fact a child of Document.
child = args.TargetObject;
while (child != null && child != document)
{
child = LogicalTreeHelper.GetParent(child);
}
if (child != null)
{
ich = GetIContentHost();
if (ich != null)
{
// Get the position of the content.
rects = ich.GetRectangles((ContentElement)args.TargetObject);
if (rects.Count > 0)
{
targetRect = MakeVisible((IScrollInfo)RenderScope, (Visual)ich, rects[0]);
if(!targetRect.IsEmpty)
{
GeneralTransform t = RenderScope.TransformToAncestor(this);
targetRect = t.TransformBounds(targetRect);
}
}
}
args.Handled = true; // Mark the event as handled.
}
}
if (args.Handled)
{
// Create new BringIntoView request for this element, so
// if there is an ancestor handling BringIntoView, it can
// react appropriately and bring this element into view.
if (targetRect.IsEmpty)
{
BringIntoView();
}
else
{
BringIntoView(targetRect);
}
}
}
}
/// <summary>
/// Called from the event handler to make sure the target is visible in the client
/// area. May cause navigation to a different page.
/// </summary>
/// <param name="sender">The instance handling the event.</param>
/// <param name="args">RequestBringIntoViewEventArgs indicates the element and region to scroll into view.</param>
private static void HandleRequestBringIntoView(object sender, RequestBringIntoViewEventArgs args)
{
if (sender != null && sender is DocumentViewerBase)
{
((DocumentViewerBase)sender).HandleRequestBringIntoView(args);
}
}
/// <summary>
/// Makes sure the target is visible in the client area. May cause navigation
/// to a different page.
/// </summary>
/// <param name="args">RequestBringIntoViewEventArgs indicates the element and region to scroll into view.</param>
private void HandleRequestBringIntoView(RequestBringIntoViewEventArgs args)
{
DependencyObject child;
DependencyObject parent;
ContentPosition contentPosition;
BringIntoViewState bringIntoViewState;
DynamicDocumentPaginator documentPaginator;
Rect targetRect = Rect.Empty;
if (args != null && args.TargetObject != null && _document is DependencyObject)
{
// If the passed in object is a logical child of DocumentViewer's Document,
// attempt to make it visible now.
// Special case: TargetObject is the document itself. Then scroll to the top (page 1).
// This supports navigating from baseURI#anchor to just baseURI.
parent = _document as DependencyObject;
if (args.TargetObject == _document)
{
OnGoToPageCommand(1);
args.Handled = true; // Mark the event as handled.
}
else
{
// Verify if TargetObject is in fact a child of Document.
child = args.TargetObject;
while (child != null && child != parent)
{
// Skip elements in the control's template (if such exists) and
// walk up logical tree to find if the focused element is within
// the document.
FrameworkElement fe = child as FrameworkElement;
if (fe != null && fe.TemplatedParent != null)
{
child = fe.TemplatedParent;
}
else
{
child = LogicalTreeHelper.GetParent(child);
}
}
if (child != null)
{
// Special case UIElements already connected to visual tree.
if (args.TargetObject is UIElement)
{
UIElement targetObject = (UIElement)args.TargetObject;
if (VisualTreeHelper.IsAncestorOf(this, targetObject))
{
targetRect = args.TargetRect;
if (targetRect.IsEmpty)
{
targetRect = new Rect(targetObject.RenderSize);
}
GeneralTransform transform = targetObject.TransformToAncestor(this);
targetRect = transform.TransformBounds(targetRect);
targetRect.IntersectsWith(new Rect(this.RenderSize));
}
}
// If target is not already visible, bring appropriate page into view.
if (targetRect.IsEmpty)
{
// Get content position for given target.
documentPaginator = _document.DocumentPaginator as DynamicDocumentPaginator;
if (documentPaginator != null)
{
contentPosition = documentPaginator.GetObjectPosition(args.TargetObject);
if (contentPosition != null && contentPosition != ContentPosition.Missing)
{
// Asynchronously retrieve PageNumber for given ContentPosition.
bringIntoViewState = new BringIntoViewState(this, contentPosition, args.TargetObject, args.TargetRect);
documentPaginator.GetPageNumberAsync(contentPosition, bringIntoViewState);
}
}
}
args.Handled = true; // Mark the event as handled.
}
}
if (args.Handled)
{
// Create new BringIntoView request for this element, so
// if there is an ancestor handling BringIntoView, it can
// react appropriately and bring this element into view.
if (targetRect.IsEmpty)
{
BringIntoView();
}
else
{
BringIntoView(targetRect);
}
}
}
}
// ------------------------------------------------------------------
// OnRequestBringIntoView is called from the event handler TextBlock
// registers for the event.
// Handle the event for hosted ContentElements, and raise a new BringIntoView
// event with the following values:
// * object: (this)
// * rect: A rect indicating the position of the ContentElement
//
// sender - The instance handling the event.
// args - RequestBringIntoViewEventArgs indicates the element
// and region to scroll into view.
// ------------------------------------------------------------------
private static void OnRequestBringIntoView(object sender, RequestBringIntoViewEventArgs args)
{
TextBlock textBlock = sender as TextBlock;
ContentElement child = args.TargetObject as ContentElement;
if (textBlock != null && child != null)
{
if (TextBlock.ContainsContentElement(textBlock, child))
{
// Handle original event.
args.Handled = true;
// Retrieve the first rectangle representing the child and
// raise a new BrightIntoView event with such rectangle.
ReadOnlyCollection<Rect> rects = textBlock.GetRectanglesCore(child);
Invariant.Assert(rects != null, "Rect collection cannot be null.");
if (rects.Count > 0)
{
textBlock.BringIntoView(rects[0]);
}
else
{
textBlock.BringIntoView();
}
}
}
}
private void BringIntoViewRequested(object sender, RequestBringIntoViewEventArgs e)
{
var transform = e.TargetObject.TransformToVisual(this.GetVisualChildren().Single());
var rect = e.TargetRect * transform;
var offset = this.Offset;
if (rect.Bottom > offset.Y + this.Viewport.Height)
{
offset = offset.WithY(rect.Bottom - this.Viewport.Height);
e.Handled = true;
}
if (rect.Y < offset.Y)
{
offset = offset.WithY(rect.Y);
e.Handled = true;
}
if (rect.Right > offset.X + this.Viewport.Width)
{
offset = offset.WithX(rect.Right - this.Viewport.Width);
e.Handled = true;
}
if (rect.X < offset.X)
{
offset = offset.WithX(rect.X);
e.Handled = true;
}
this.Offset = offset;
}
private void BringIntoViewRequested(object sender, RequestBringIntoViewEventArgs e)
{
e.Handled = BringDescendentIntoView(e.TargetObject, e.TargetRect);
}
/// <summary>
/// Called from the event handler to make sure the target is visible in the client area.
/// </summary>
/// <param name="sender">The instance handling the event.</param>
/// <param name="args">RequestBringIntoViewEventArgs indicates the element and region to scroll into view.</param>
private static void HandleRequestBringIntoView(object sender, RequestBringIntoViewEventArgs args)
{
if (sender != null && sender is FlowDocumentScrollViewer)
{
((FlowDocumentScrollViewer)sender).HandleRequestBringIntoView(args);
}
}