private void SetDiagramDatasActions()
{
DiagramDatas.CollectionChanged += async(s, e) =>
{
if (e.Action == System.Collections.Specialized.NotifyCollectionChangedAction.Add)
{
var newEle = e.NewItems;
for (int i = 0; i < newEle.Count; i++)
{
var color = ColorUtil.RandomColorString();
var ele = newEle[i] as IEnumerable <Point>;
var lineSet = new LineDataset <Point>(newEle[i] as IEnumerable <Point>)
{
Label = "Sec " + (DiagramDatas.Count()),
BackgroundColor = color,
BorderWidth = borderWidth,
BorderColor = color,
PointHitRadius = 5,
PointHoverRadius = 5,
};
_config.Data.Datasets.Add(lineSet);
}
}
else if (e.Action == System.Collections.Specialized.NotifyCollectionChangedAction.Remove)
{
var newEle = e.OldItems;
for (int i = 0; i < newEle.Count; i++)
{
var ele = _config.Data.Datasets.ToList().Find((x) =>
(x as LineDataset <Point>).Label == "Sec " + (e.OldStartingIndex + 1));
_config.Data.Datasets.Remove(ele);
}
resetLabelText();
OnChangedSecetion(-1);
}
else if (e.Action == System.Collections.Specialized.NotifyCollectionChangedAction.Replace)
{
var oldEle = e.OldItems;
var newEle = e.NewItems;
for (int i = 0; i < oldEle.Count; i++)
{
var ele = _config.Data.Datasets.ToList().Find((x) =>
(x as LineDataset <Point>).Label == "Sec " + (e.OldStartingIndex + 1)) as LineDataset <Point>;
ele.RemoveAll(x => true);
ele.AddRange(newEle[i] as IEnumerable <Point>);
}
OnChangedSecetion(-1);
}
await InvokeAsync(this.StateHasChanged);
};
}
private void OnDeleteItem(int index)
{
DiagramDatas.RemoveAt(index);
var a = index;
}
