Display different context menu

Goal:

Display different context menu if right clicking a row from the listview or right clicking inside of listview without making a selection of a row.

Problem:

Having difficult to find a solution that enable to display different context menu once clicking on something.

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private void lstvdMonth_MouseRightButtonUp(object sender, MouseButtonEventArgs e)
{



    ContextMenu myContextMenu = new ContextMenu();;

    if (MouseButtonState.Released == e.RightButton)
    {


        MenuItem menuItem3 = new 开发者_运维知识库MenuItem();
        menuItem3.Header = "Add quantity";
        myContextMenu.Items.Add(menuItem3);
        menuItem3.Click += new RoutedEventHandler(menuItem3_Click);

        MenuItem menuItem2 = new MenuItem();
        menuItem2.Header = "Delete";
        myContextMenu.Items.Add(menuItem2);
        menuItem2.Click += new RoutedEventHandler(menuItem2_Click);
    }
    else
    {
        MenuItem menuItem1 = new MenuItem();
        menuItem1.Header = "New product";
        myContextMenu.Items.Add(menuItem1);
        menuItem1.Click += new RoutedEventHandler(menuItem1_Click);
    }

    myContextMenu.IsOpen = true;
}

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I think what you should test in the if is whether any items are selected in the ListView (e.g. SelectedItem == null).

How exactly do you expect the mouse button to ever be down in the MouseUp event?