wfi:WindowsFormsHost焦点设置

添加鼠标点击

2设置焦点

private void scrollViewer_PreviewMouseDown(object sender, MouseButtonEventArgs e)
        {
            if (Mgr.CurrFocusIn != Constant.FocusInTrade)
            {
                this.Focus();
                Mgr.CurrFocusIn = Constant.FocusInTrade;
            }
        }