private async void MapView_Tapped(object sender, GeoViewInputEventArgs e)
{
try
{
// Create the feature.
ArcGISFeature feature = (ArcGISFeature)_damageFeatureTable.CreateFeature();
// Get the normalized geometry for the tapped location and use it as the feature's geometry.
MapPoint tappedPoint = (MapPoint)GeometryEngine.NormalizeCentralMeridian(e.Location);
feature.Geometry = tappedPoint;
// Set feature attributes.
feature.SetAttributeValue("typdamage", "Minor");
feature.SetAttributeValue("primcause", "Earthquake");
// Add the feature to the table.
await _damageFeatureTable.AddFeatureAsync(feature);
// Apply the edits to the service.
await _damageFeatureTable.ApplyEditsAsync();
// Update the feature to get the updated objectid - a temporary ID is used before the feature is added.
feature.Refresh();
// Confirm feature addition.
MessageBox.Show("Created feature " + feature.Attributes["objectid"], "Success!");
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString(), "Error adding feature");
}
}
private async void UpdateDamageType(string selectedAttributeValue)
{
try
{
// Load the feature.
await _selectedFeature.LoadAsync();
// Update the attribute value.
_selectedFeature.SetAttributeValue(AttributeFieldName, selectedAttributeValue);
// Update the table.
await _selectedFeature.FeatureTable.UpdateFeatureAsync(_selectedFeature);
// Update the service.
ServiceFeatureTable table = (ServiceFeatureTable)_selectedFeature.FeatureTable;
await table.ApplyEditsAsync();
ShowMessage("Success!", $"Edited feature {_selectedFeature.Attributes["objectid"]}");
}
catch (Exception ex)
{
ShowMessage("Failed to edit feature", ex.ToString());
}
finally
{
// Clear the selection.
_damageLayer.ClearSelection();
_selectedFeature = null;
// Dismiss any callout.
_myMapView.DismissCallout();
}
}
private async void DamageBox_SelectionChanged(object sender, System.Windows.Controls.SelectionChangedEventArgs e)
{
try
{
// Get the new value.
string selectedAttributeValue = DamageBox.SelectedValue.ToString();
// Load the feature.
await _selectedFeature.LoadAsync();
// Update the attribute value.
_selectedFeature.SetAttributeValue(_attributeFieldName, selectedAttributeValue);
// Update the table.
await _selectedFeature.FeatureTable.UpdateFeatureAsync(_selectedFeature);
// Update the service.
await((ServiceFeatureTable)_selectedFeature.FeatureTable).ApplyEditsAsync();
AttributePicker.Visibility = Visibility.Collapsed;
ShowAlert("Edited feature " + _selectedFeature.Attributes["objectid"]);
// Clear the selection.
_featureLayer.ClearSelection();
_selectedFeature = null;
}
catch (Exception ex)
{
ShowAlert(ex.Message, "Failed to edit feature");
}
}
private async void DamageType_Changed(object sender, SelectionChangedEventArgs e)
{
// Skip if nothing is selected.
if (DamageTypeDropDown.SelectedIndex == -1)
{
return;
}
try
{
// Get the new value.
string selectedAttributeValue = DamageTypeDropDown.SelectedValue.ToString();
// Load the feature.
await _selectedFeature.LoadAsync();
// Update the attribute value.
_selectedFeature.SetAttributeValue(AttributeFieldName, selectedAttributeValue);
// Update the table.
await _selectedFeature.FeatureTable.UpdateFeatureAsync(_selectedFeature);
// Update the service.
ServiceFeatureTable table = (ServiceFeatureTable)_selectedFeature.FeatureTable;
await table.ApplyEditsAsync();
MessageBox.Show("Edited feature " + _selectedFeature.Attributes["objectid"], "Success!");
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString(), "Failed to edit feature");
}
finally
{
// Clear the selection.
_damageLayer.ClearSelection();
_selectedFeature = null;
// Update the UI.
DamageTypeDropDown.IsEnabled = false;
DamageTypeDropDown.SelectedIndex = -1;
}
}
private async void DamageType_Changed(object sender, EventArgs e)
{
// Skip if nothing is selected.
if (DamageTypePicker.SelectedIndex == -1)
{
return;
}
try
{
// Get the new value.
string selectedAttributeValue = DamageTypePicker.SelectedItem.ToString();
// Load the feature.
await _selectedFeature.LoadAsync();
// Update the attribute value.
_selectedFeature.SetAttributeValue(AttributeFieldName, selectedAttributeValue);
// Update the table.
await _selectedFeature.FeatureTable.UpdateFeatureAsync(_selectedFeature);
// Update the service.
ServiceFeatureTable table = (ServiceFeatureTable)_selectedFeature.FeatureTable;
await table.ApplyEditsAsync();
await Application.Current.MainPage.DisplayAlert("Success!", $"Edited feature {_selectedFeature.Attributes["objectid"]}", "OK");
}
catch (Exception ex)
{
await Application.Current.MainPage.DisplayAlert("Failed to edit feature", ex.ToString(), "OK");
}
finally
{
// Clear the selection.
_damageLayer.ClearSelection();
_selectedFeature = null;
// Update the UI.
DamageTypePicker.IsEnabled = false;
DamageTypePicker.SelectedIndex = -1;
}
}
private async Task ApplyDamageChange()
{
try
{
// Get the value from the UI.
string selectedAttributeValue = DamageBox.SelectedItem.ToString();
// Check if the new value is the same as the existing value.
if (_selectedFeature.Attributes[_attributeFieldName].ToString() == selectedAttributeValue)
{
return;
}
// Load the feature.
await _selectedFeature.LoadAsync();
// Update the attribute value.
_selectedFeature.SetAttributeValue(_attributeFieldName, selectedAttributeValue);
// Update the table.
await _selectedFeature.FeatureTable.UpdateFeatureAsync(_selectedFeature);
// Update the service.
await((ServiceFeatureTable)_selectedFeature.FeatureTable).ApplyEditsAsync();
SwitchView(DefaultView);
ShowAlert("Edited feature " + _selectedFeature.Attributes["objectid"]);
// Clear the selection.
_featureLayer.ClearSelection();
_selectedFeature = null;
}
catch (Exception ex)
{
ShowAlert(ex.Message, "Failed to edit feature");
}
}
