/// <summary>
/// Attach embedded viewer to the reader control.
/// </summary>
private void AttachViewer(IFlowDocumentViewer viewer)
{
Invariant.Assert(viewer != null && viewer is FrameworkElement);
FrameworkElement feViewer = (FrameworkElement)viewer;
// Set document
viewer.SetDocument(Document);
// Set TemplatedParent
//feViewer._templatedParent = TemplatedParent;
// Register event handlers.
viewer.PageCountChanged += new EventHandler(OnPageCountChanged);
viewer.PageNumberChanged += new EventHandler(OnPageNumberChanged);
viewer.PrintStarted += new EventHandler(OnViewerPrintStarted);
viewer.PrintCompleted += new EventHandler(OnViewerPrintCompleted);
// Create property bindings.
CreateTwoWayBinding(feViewer, ZoomProperty, "Zoom");
CreateTwoWayBinding(feViewer, MaxZoomProperty, "MaxZoom");
CreateTwoWayBinding(feViewer, MinZoomProperty, "MinZoom");
CreateTwoWayBinding(feViewer, ZoomIncrementProperty, "ZoomIncrement");
}
/// <summary>
/// Detach embedded viewer form the reader control.
/// </summary>
private void DetachViewer(IFlowDocumentViewer viewer)
{
Invariant.Assert(viewer != null && viewer is FrameworkElement);
FrameworkElement feViewer = (FrameworkElement)viewer;
// Clear property bindings.
BindingOperations.ClearBinding(feViewer, ZoomProperty);
BindingOperations.ClearBinding(feViewer, MaxZoomProperty);
BindingOperations.ClearBinding(feViewer, MinZoomProperty);
BindingOperations.ClearBinding(feViewer, ZoomIncrementProperty);
// Unregister event handlers.
viewer.PageCountChanged -= new EventHandler(OnPageCountChanged);
viewer.PageNumberChanged -= new EventHandler(OnPageNumberChanged);
viewer.PrintStarted -= new EventHandler(OnViewerPrintStarted);
viewer.PrintCompleted -= new EventHandler(OnViewerPrintCompleted);
// Clear TemplatedParent
//feViewer._templatedParent = null;
// Detach document
viewer.SetDocument(null);
}