internal void RangeSelectorChanged()
{
if (MainChart != null)
{
MainChart.BeginUpdate();
UpdateDataRange();
IEnumerable <QuoteRange> ranges = ViewModel.ChartViewModel.Instance.GetYRange(this.LowerValue, this.UpperValue);
if (ranges != null && ranges.Any())
{
if (MainChart != null)
{
MainChart.AxisY.Min = ranges.Min(p => { return(p == null ? int.MaxValue : p.PriceMin); });
MainChart.AxisY.Max = ranges.Max(p => { return(p == null ? int.MinValue : p.PriceMax); });
}
var quote = ranges.First();
if (quote != null && VolumeSeries != null)
{
VolumeSeries.AxisY.Min = quote.VolumeMin;
VolumeSeries.AxisY.Max = quote.VolumeMax * 12;
}
}
MainChart.EndUpdate();
if (this.RangeSelector != null)
{
DateRangeText = Utilities.FromOADate(RangeSelector.LowerValue).ToString("MMM dd, yyyy")
+ " - " + Utilities.FromOADate(RangeSelector.UpperValue).ToString("MMM dd, yyyy");
}
}
}
public bool BeginUpdate()
{
return(MainChart.BeginUpdate());
}