[英]How to add a Canvas event from another class? WPF C#
我有一个MainWindow类,这是应用程序的主窗口。 我在MainWindow类的下面创建了另一个类,并且需要向在MainWindow中创建的Canvas添加事件。 我要添加为事件的方法也在MainWindow中。
public partial class MainWindow : Window
{
public void Moving(object sender, MouseEventArgs e)
{
bla bla;
}
public Canvas Getcanvas
{
get
{
return canvas;
}
}
}
public class Ka
{
public Ka()
{
MainWindow.Getcanvas.MouseMove += new MouseEventHandler(//HERE!!! I DONT KNOW WHAT GOES HERE, here should probably be MainWindow.Moving but I get error "An object reference.."
}
}
请帮我 !
var mainWindowInstant = (MainWindow)App.Current.MainWindow;
mainWindowInstant.Getcanvas.MouseMove += new MouseEventHandler(...);
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