private void timer_Tick(object sender, EventArgs e)
{
if (!IsDeviceSelected)
{
timestampForDbUpdate = DateTime.MinValue;
return;
}
var readings = dbUpdater.GetNewReadings(SelectedDeviceLocation, timestampForDbUpdate);
if (readings == null || readings.Count == 0)
{
return;
}
sensorReadings.Invoke((MethodInvoker) delegate
{
var points = sensorReadings.Series["Readings"].Points;
while (points.Count > 500)
{
points.RemoveAt(0);
}
foreach (var reading in readings)
{
points.AddY(reading);
}
});
timestampForDbUpdate = DateTime.Now;
timestampForDbUpdate.AddMilliseconds(-250);
}
