mvvm dynamich chart with checkboxes not working

iam trying to hide and show LiveCharts series with checkboxes, but its not working :( This is my inspiration from :How can I hide and show LiveCharts series with dynamically created chart, and dynamic checkboxes? I have something a little bit different, i didnt use foreach loop , because i dont know how to do with that ( if someone knows how he did it please let me know ) , please help iam lost

ViewModel:

 public void BasicLineExample()
    {
        var count = 2;
        var val1 = new List<string>() { line1 };//(line=times (example: 00:01:45.215,00:01:45.215)
        var val2 = new List<string>() { line2 };
        for (int i = 1; i <= count; i++)
        {


            var lineSeries = new LineSeries
        {
            Title = "MachineResultTrue"

        };
        if (i == 1)
        {
            lineSeries.Values = new ChartValues<string>(val1);

        }
            else if (i == 2)
            {
                lineSeries.Values = new ChartValues<string>(val2);
            }

            SeriesCollection.Add(lineSeries);

        }
    }
    private Series _LineSerie;
    public Series LineSerie
    {
        get { return _LineSerie; }
        set
        {
            if (value != _LineSerie)
            {
                _LineSerie = value;
                NotifyPropertyChanged();
            }

        }
    }

    private bool _Visibility;


    public bool Visibility
    {
        get { return _Visibility; }
        set
        {
            if (value != _Visibility)
            {
                _Visibility = value;
                if (LineSerie != null)
                {
                    if (value == true)
                    {

                        LineSerie.Visibility = System.Windows.Visibility.Visible;
                    }
                    else
                    {
                        LineSerie.Visibility = System.Windows.Visibility.Collapsed;
                    }
                }
                NotifyPropertyChanged();
            }
        }
    }


    public event PropertyChangedEventHandler PropertyChanged;
    private void NotifyPropertyChanged([CallerMemberName] String propertyName = "")
    {
        PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
    }

}

 }

My XAML:

      <ItemsControl
     ItemsSource="{Binding SeriesCollection,Mode=TwoWay}"DataContext="{Binding Main1,                                         Source={StaticResource Locator}}"
         Grid.IsSharedSizeScope="True" Grid.Row="1" Grid.Column="1"
         Margin="2,24,10,10" Grid.RowSpan="2">
         <ItemsControl.ItemTemplate  >
          <DataTemplate
  DataType="{}">
                <Border
    x:Name="Border"
    Padding="8">
                    <Grid>
                        <Grid.ColumnDefinitions>

                            <ColumnDefinition
          SharedSizeGroup="Checkerz" />
                            <ColumnDefinition />
                        </Grid.ColumnDefinitions>

                        <CheckBox  Margin="10,0,5,0" 
        VerticalAlignment="Center" Content="{Binding LineSeries.Title}"
        IsChecked="{Binding Visibility}"  RenderTransformOrigin="0.919,1.287"    />

                        <StackPanel 
        Margin="8 0 0 0"
        Grid.Column="1">



                        </StackPanel>
                    </Grid>
                </Border>
                <DataTemplate.Triggers>
                    <DataTrigger
      Binding="{Binding IsSelected}"
      Value="True">
                        <Setter
        TargetName="Border"
        Property="Background"
        Value="{DynamicResource MaterialDesignSelection}" />
                    </DataTrigger>
                </DataTemplate.Triggers>
            </DataTemplate>
        </ItemsControl.ItemTemplate>
    </ItemsControl>