public async Task RefreshChartData()
{
IEnumerable <DashboardChartData> newDatas = await GenerateChartDatas.Invoke();
await Chart.Clear();
await Chart.AddLabels(newDatas.Select(x => x.Label).ToArray());
List <string> colors = new List <string>();
for (int i = 0; i < newDatas.Count(); i++)
{
string sliceColor = null;
if (i < 9)
{
sliceColor = SliceColorGenerator?.Invoke(i);
}
if (!string.IsNullOrWhiteSpace(sliceColor))
{
colors.Add(sliceColor);
}
else
{
colors.Add(DEFAULT_SLICE_COLOR);
}
}
PieChartDataset <long> newChartDataset = new PieChartDataset <long>()
{
Data = newDatas.Select(x => x.Value).ToList(),
BackgroundColor = colors,
BorderColor = colors
};
CurrentDataset = newChartDataset;
await Chart.AddDatasetsAndUpdate(newChartDataset);
}