private async Task <IFeatureSet> GetGeodatabaseVersionsAsync()
{
// Start animating the activity indicator.
_progressBar.StartAnimating();
// Results will be returned as a feature set.
IFeatureSet results = null;
// Create new geoprocessing task.
GeoprocessingTask listVersionsTask = await GeoprocessingTask.CreateAsync(_listVersionsUrl);
// Create default parameters that are passed to the geoprocessing task.
GeoprocessingParameters listVersionsParameters = await listVersionsTask.CreateDefaultParametersAsync();
// Create job that handles the communication between the application and the geoprocessing task.
GeoprocessingJob listVersionsJob = listVersionsTask.CreateJob(listVersionsParameters);
try
{
// Execute analysis and wait for the results.
GeoprocessingResult analysisResult = await listVersionsJob.GetResultAsync();
// Get results from the outputs.
GeoprocessingFeatures listVersionsResults = (GeoprocessingFeatures)analysisResult.Outputs["Versions"];
// Set results.
results = listVersionsResults.Features;
}
catch (Exception ex)
{
// Error handling if something goes wrong.
if (listVersionsJob.Status == JobStatus.Failed && listVersionsJob.Error != null)
{
UIAlertController alert = new UIAlertController
{
Message = "Executing geoprocessing failed. " + listVersionsJob.Error.Message
};
alert.ShowViewController(this, this);
}
else
{
UIAlertController alert = new UIAlertController
{
Message = "An error occurred. " + ex
};
alert.ShowViewController(this, this);
}
}
finally
{
// Stop the activity animation.
_progressBar.StopAnimating();
}
return(results);
}
private async Task <IFeatureSet> GetGeodatabaseVersionsAsync()
{
// Results will be returned as a feature set
IFeatureSet results = null;
// Create new geoprocessing task
var listVersionsTask = await GeoprocessingTask.CreateAsync(ListVersionsUrl);
// Create parameters that are passed to the used geoprocessing task
GeoprocessingParameters listVersionsParameters =
new GeoprocessingParameters(GeoprocessingExecutionType.SynchronousExecute);
// Create job that handles the communication between the application and the geoprocessing task
var listVersionsJob = listVersionsTask.CreateJob(listVersionsParameters);
try
{
// Execute analysis and wait for the results
GeoprocessingResult analysisResult = await listVersionsJob.GetResultAsync();
// Get results from the outputs
GeoprocessingFeatures listVersionsResults = analysisResult.Outputs["Versions"] as GeoprocessingFeatures;
// Set results
results = listVersionsResults.Features;
}
catch (Exception ex)
{
// Error handling if something goes wrong
if (listVersionsJob.Status == JobStatus.Failed && listVersionsJob.Error != null)
{
UIAlertController alert = new UIAlertController();
alert.Message = "Executing geoprocessing failed. " + listVersionsJob.Error.Message;
alert.ShowViewController(this, this);
}
else
{
UIAlertController alert = new UIAlertController();
alert.Message = "An error occurred. " + ex.ToString();
alert.ShowViewController(this, this);
}
}
finally
{
// Set the UI to indicate that the geoprocessing is not running
SetBusy(false);
}
return(results);
}