wpf使用livecharts---柱状图顶端标出数值

直接上代码吧，最近项目忙，有不清楚的欢迎一起交流，最终效果如下：

页面端：

<lvc:CartesianChart  Series="{Binding SeriesCollection}" LegendLocation="None" Margin="10,15,15,15">
    <lvc:CartesianChart.AxisX>
        <lvc:Axis Labels="{Binding Labels}" FontSize="12" LabelsRotation="0" DisableAnimations="True">
            <lvc:Axis.Separator>
                <lvc:Separator Visibility="Hidden" Step="1" StrokeThickness="1.5" StrokeDashArray="0" Stroke="#404F56" >
                </lvc:Separator>
            </lvc:Axis.Separator>
        </lvc:Axis>
    </lvc:CartesianChart.AxisX>
    <lvc:CartesianChart.AxisY>
        <lvc:Axis>
            <lvc:Axis.Separator>
                <lvc:Separator Visibility="Hidden" StrokeThickness="1" StrokeDashArray="3" Step="{Binding AxisStep}"  Stroke="#404F56" >
                </lvc:Separator>
            </lvc:Axis.Separator>
        </lvc:Axis>
    </lvc:CartesianChart.AxisY>
</lvc:CartesianChart>

后台：

Labels = new string[] { "09-01", "09-02", "09-03", "09-04", "09-05", "09-06", "09-07", "09-08", "09-09", "09-10" };

ColumnSeries seriesPowerSave = new ColumnSeries();
seriesPowerSave.Title = "数据1";
seriesPowerSave.Fill = new SolidColorBrush(Color.FromRgb(34, 139, 34));
seriesPowerSave.DataLabels = true;
seriesPowerSave.Foreground = new SolidColorBrush(Color.FromRgb(255, 255, 255));
//显示文本内容
seriesPowerSave.LabelPoint = p => p.Y.ToString();
seriesPowerSave.Values = new ChartValues<ObservablePoint>
{            
    new ObservablePoint(0, 12),
    new ObservablePoint(1, 14),
    new ObservablePoint(2, 28),
    new ObservablePoint(3, 62),
    new ObservablePoint(4, 29),
    new ObservablePoint(5, 29),
    new ObservablePoint(6, 7),
    new ObservablePoint(7, 31),
    new ObservablePoint(8, 13),
    new ObservablePoint(9, 11)
};

//柱子宽度
seriesPowerSave.Width = 20;
seriesPowerSave.MaxColumnWidth = 20;

SeriesCollection = new SeriesCollection { };
SeriesCollection.Add(seriesPowerSave);

//todo ...
//以此类推

这样，效果就出来了。