将笛卡尔图表设置为从零开始

Question

您能帮我设置笛卡尔图表从0开始吗？我有一条线和条形图。我无法将Y轴设置为0，因为我不需要-50值。

    ChartValues<ObservablePoint> List1Point = new ChartValues<ObservablePoint>();
    ChartValues<ObservablePoint> List2Point = new ChartValues<ObservablePoint>();

    for (var i = 0; i <= 100; i++)
    {
        List1Point.Add(new ObservablePoint(numbers1[i], numbers2[i]));
    }

    for (var j = 0; j < 3; j++)
    {
        List2Point.Add(new ObservablePoint(numbers3[j], numbers4[j]));
    }

    cartesianChart1.Series = new SeriesCollection
    {
        new LineSeries
        {
                Values = List1Point,
                PointGeometry = null,
                AreaLimit = 0
            },
            new LineSeries
            {
                Values = List2Point,
                PointGeometry = null,
                LineSmoothness = 0,
                AreaLimit = 0
            }
    };