private void OnChartSelectionChanged(ChartView sender, ChartDataPointSelectionEventArgs args)
{
if (args == null)
return;
WValue = args.Wvalue;
QnValue = args.QnValue;
QjValue = args.QjValue;
}
private void OnChartTapped (object sender, ChartSelectionEventArgs e)
{
double wValue = 0;
double qnValue = 0;
double qjValue = 0;
if (e.SelectedDataPointIndex != -1) {
if (_firstSeries != null) {
var wAllValues = _firstSeries.GetChartDataPoints ();
var value = wAllValues.ElementAt (e.SelectedDataPointIndex);
wValue = value.YValue;
}
if (_secondSeries != null) {
var wAllValues = _secondSeries.GetChartDataPoints ();
var value = wAllValues.ElementAt (e.SelectedDataPointIndex);
qnValue = value.YValue;
}
if (_thirdSeries != null) {
var wAllValues = _thirdSeries.GetChartDataPoints ();
var value = wAllValues.ElementAt (e.SelectedDataPointIndex);
qjValue = value.YValue;
}
}
var parameter = new ChartDataPointSelectionEventArgs () {
Wvalue = wValue,
QnValue = qnValue,
QjValue = qjValue
};
MessagingCenter.Send (this, MessagingCenterKeys.ChartSelectionChangedKey, parameter);
}