void el_MouseLeave(object sender, MouseEventArgs e)
{
if (((Ellipse)sender).ToolTip != null)
{
((Ellipse)sender).ToolTip = null;
windowShowEllipseInfo.Stop_Timing();
windowShowEllipseInfo = null;
}
}
void el_MouseEnter(object sender, MouseEventArgs e)
{
windowShowEllipseInfo = new WindowShowEllipseInfo((Ellipse)sender, this);
((Ellipse)sender).ToolTip = windowShowEllipseInfo;
ToolTip tt = new ToolTip();
tt.Content = windowShowEllipseInfo;
((Ellipse)sender).ToolTip = tt;
}