/// <summary>
/// Find ScrollViewer from cell and subscribe to it scroll changed event.
/// </summary>
/// <param name="cell">Cell.</param>
private void _SubscribeOnScroller(Cell cell)
{
_scrollViewer = XceedVisualTreeHelper.FindScrollViewer(cell);
if (_scrollViewer != null)
{
_scrollViewer.ScrollChanged += new System.Windows.Controls.
ScrollChangedEventHandler(_ScrollViewerScrollChanged);
}
}
/// <summary>
/// Finds TableViewScrollViewer in visual tree and adds handler to it's "ScrollChanged" event.
/// Also adds handler to "Unloaded" event of cell editor to remove handlers when it will be unloaded.
/// </summary>
private void _SubscribeEvents()
{
Debug.Assert(_cellEditor != null);
Debug.Assert(_popup != null);
TableViewScrollViewer scrollViewer = XceedVisualTreeHelper.FindScrollViewer(_cellEditor);
if (scrollViewer != null)
{
_scrollViewer = scrollViewer;
_scrollViewer.ScrollChanged += new ScrollChangedEventHandler(_ScrollViewerScrollChanged);
}
else
{
// Do nothing, because scroll viewer wasn't found.
}
}
