public void HideContent(object content)
{
OverlayContentControl occ = hostCanvas.Children.OfType <OverlayContentControl>().SingleOrDefault(o => o.Content == content);
if (occ != null)
{
hostCanvas.Children.Remove(occ);
occ.IsRendering = false;
}
HasChildren = hostCanvas.Children.Count > 0;
}
public OverlayContentControl ShowContent(object content, Rect placementRect, object contentTemplateKey = null)
{
OverlayContentControl existingOCC = hostCanvas.Children.OfType <OverlayContentControl>().SingleOrDefault(o => o.Content == content);
if (existingOCC != null)
{
return(existingOCC);
}
OverlayContentControl occ = new OverlayContentControl();
occ.ParentOverlay = this;
occ.Content = content;
if (contentTemplateKey != null)
{
occ.SetResourceReference(OverlayContentControl.ContentTemplateProperty, contentTemplateKey);
}
hostCanvas.Children.Add(occ);
occ.TargetRect = placementRect;
HasChildren = true;
occ.IsRendering = true;
return(occ);
}