public static singleton GetInstance()
{
if (instance == null)
{
instance = new singleton();
}
return(instance);
}
private void Button_Click_1(object sender, RoutedEventArgs e)
{
try
{
singleton sng = singleton.GetInstance();
canvas.Children.Add(sng.r);
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
