private async Task UpdateGraph(object sender, EventArgs e)
{
try
{
//fetch latest UV data from service and then update model
int?LocIndex = this.arpansaModel.LocIndexValue;
if (LocIndex == null)
{
//no location has been selected. Nothing to paint.
return;
}
MeasuredLocation curLocation = this.arpansaModel.MeasureLocations[LocIndex.Value];
CurrentLocName.Text = curLocation.SiteName;
ArpansaUVResponse arpansaUV = await this.arpansaService.GetUVData(curLocation.SiteLongitude.Value, curLocation.SiteLatitude.Value);
List <UVIndex> uvIndexes = arpansaService.GenerateUVIndexs();
//update model
ArpansaUVData graphData = new ArpansaUVData(arpansaUV);
graphData.ReferenceUVs = uvIndexes;
this.arpansaModel.ArpansaUVData = graphData;
}
catch (Exception e1)
{
await DisplayAlert("Error", e1.Message, "Ok");
}
}
private void ArpansaModel_PropertyChanged(object sender, System.ComponentModel.PropertyChangedEventArgs e)
{
if (e.PropertyName == "MeasureLocations")
{
this.locPicker.IsEnabled = true;
this.loadingLabel.IsVisible = false;
}
else if (e.PropertyName == "LocIndexValue" && this.arpansaModel.MeasureLocations != null)
{
if (arpansaModel.LocIndexValue < 0 || arpansaModel.LocIndexValue >= arpansaModel.MeasureLocations.Count)
{
Console.WriteLine("Invalid location selected");
return;
}
//save the new selected location
Preferences.Set("LocIndexValue", arpansaModel.LocIndexValue.Value);
MeasuredLocation selectedLoc = arpansaModel.MeasureLocations[arpansaModel.LocIndexValue.Value];
//update state field
this.state.Text = selectedLoc.CategoryName;
this.stateStack.IsVisible = true;
//update latitude field
this.lat.Text = selectedLoc.SiteLatitude.ToString();
this.latStack.IsVisible = true;
//update longitude field
this.longitude.Text = selectedLoc.SiteLongitude.ToString();
this.longStack.IsVisible = true;
}
}