private async void onToOpisClick(object sender, System.EventArgs e)
        {
            await SvazStack.FadeTo(0, 100);

            SvazStack.IsVisible = false;

            OpisStack.Opacity = 0;

            OpisStack.IsVisible = true;


            await OpisStack.FadeTo(1, 100);
        }
        // Связки персов


        private async void onToSvazClick(object sender, System.EventArgs e)
        {
            //ViewModel.ListViewModel.BackSaveCommand.Execute(null);
            ViewModel.UpdateSvyazki();
            await OpisStack.FadeTo(0, 100);

            OpisStack.IsVisible = false;


            if (ViewModel.Charrs.Count == 0)
            {
                noListData.IsVisible = true;
            }
            else
            {
                noListData.IsVisible = false;
            }
            SvazStack.Opacity = 0;

            SvazStack.IsVisible = true;


            await SvazStack.FadeTo(1, 100);
        }