We use cookies to give you the best experience on our website. If you continue to browse, then you agree to our privacy policy and cookie policy.
BoldSignEasily embed eSignatures in your .NET applications. Free sandbox with native SDK available.
|
private void DateTimeAxis_ActualRangeChanged(object sender, ActualRangeChangedEventArgs e)
{
if (isPrimaryLoadTime)
{
if (Device.RuntimePlatform == Device.UWP)
{
initialPrimaryMinimum = Convert.ToDateTime(e.ActualMinimum).ToOADate();
initialPrimaryMaximum = Convert.ToDateTime(e.ActualMaximum).ToOADate();
}
else
{
initialPrimaryMinimum = (double)e.ActualMinimum;
initialPrimaryMaximum = (double)e.ActualMaximum;
}
isPrimaryLoadTime = false;
}
}
private void NumericalAxis_ActualRangeChanged(object sender, ActualRangeChangedEventArgs e)
{
if (isSecondaryLoadTime)
{
initialSecondaryMinimum = (double)e.ActualMinimum;
initialSecondaryMaximum = (double)e.ActualMaximum;
isSecondaryLoadTime = false;
}
}
private void Chart_ZoomDelta(object sender, Syncfusion.SfChart.XForms.ChartZoomDeltaEventArgs e)
{
//if you want to zoom beyond DateTimeAxis, you can add this code
if (e.Axis is DateTimeAxis)
{
if (e.PreviousZoomFactor == 1 && e.CurrentZoomFactor == 1)
{
double interval = 0;
if (dateTimeAxis.VisibleLabels.Count > 2)
{
var data = dateTimeAxis.VisibleLabels;
interval = data[1].Position - data[0].Position;
}
dateTimeAxis.Minimum = DateTime.FromOADate(dateTimeAxis.VisibleMinimum - interval); // subtract the value as you want to decrease the range during zoom out
dateTimeAxis.Maximum = DateTime.FromOADate(dateTimeAxis.VisibleMaximum + interval); // add the value as you want to increase the range during zoom out
}
}
//if you want to zoom beyond NumericalAxis, you can add this code
else if (e.Axis is NumericalAxis)
{
if (e.PreviousZoomFactor == 1 && e.CurrentZoomFactor == 1)
{
double interval = 0;
if (numericalAxis.VisibleLabels.Count > 2)
{
var data = numericalAxis.VisibleLabels;
interval = data[1].Position - data[0].Position;
}
numericalAxis.Minimum = numericalAxis.VisibleMinimum - interval;
numericalAxis.Maximum = numericalAxis.VisibleMaximum + interval;
}
}
}
private void Chart_ResetZoom(object sender, ChartResetZoomEventArgs e)
{
dateTimeAxis.Minimum = DateTime.FromOADate(initialPrimaryMinimum);
dateTimeAxis.Maximum = DateTime.FromOADate(initialPrimaryMaximum);
numericalAxis.Minimum = initialSecondaryMinimum;
numericalAxis.Maximum = initialSecondaryMaximum;
} |
