public void PreHide()
{
var backup = new GridExpandBehaviorBackupInfo(Element);
FrameworkElementAtt.SetGridExpanderBehavior_Backup(Element, backup);
if (IsHorizontal)
{
Element.Width = Element.ActualWidth;
Element.HorizontalAlignment = Dock == Dock.Right ? HorizontalAlignment.Right : HorizontalAlignment.Left;
}
else
{
Element.Height = Element.ActualHeight;
Element.VerticalAlignment = Dock == Dock.Bottom ? VerticalAlignment.Bottom : VerticalAlignment.Top;
}
}
public void PostShow()
{
var backup = FrameworkElementAtt.GetGridExpanderBehavior_Backup(Element);
backup.ApplyTo(Element);
}
public void PreShow()
{
Element.Visibility = FrameworkElementAtt.GetGridExpanderBehavior_Backup(Element).Visibility;
}
