Hi there,
Thank you for the question!
To efficiently calculate the total area of all polygons in a FeatureLayer without looping through individual features, you can use the QueryStatisticsAsync method. This approach is much faster and cleaner, especially for large datasets.
Here's how you can achieve this:
// Define statistic definition for summing polygon areas
var areaStatisticDefinition = new StatisticDefinition("Shape_Area", StatisticType.Sum, "TotalArea");
// Set up statistics query parameters
var queryParameters = new StatisticsQueryParameters(new List<StatisticDefinition> { areaStatisticDefinition });
// Execute statistics query asynchronously on your FeatureLayer
var statisticsResult = await yourFeatureLayer
.FeatureTable
.QueryStatisticsAsync(queryParameters);
// Retrieve total area result
double totalArea = 0;
if (statisticsResult.Any())
{
totalArea = Convert.ToDouble(statisticsResult.First().Statistics["TotalArea"]);
}
// Output or use the totalArea as needed
Console.WriteLine($"Total Area: {totalArea}");
Let me know if you have any questions or run into issues while implementing this!
