private async void SaveMapClicked(object sender, RoutedEventArgs e)
{
try
{
// Don't attempt to save if the OAuth settings weren't provided
if (String.IsNullOrEmpty(AppClientId) || String.IsNullOrEmpty(OAuthRedirectUrl))
{
MessageDialog dialog = new MessageDialog("OAuth settings were not provided.", "Cannot Save");
await dialog.ShowAsync();
SaveMapFlyout.Hide();
return;
}
// Show the progress bar so the user knows work is happening
SaveProgressBar.Visibility = Visibility.Visible;
// Get the current map
Map myMap = MyMapView.Map;
// Apply the current extent as the map's initial extent
myMap.InitialViewpoint = MyMapView.GetCurrentViewpoint(ViewpointType.BoundingGeometry);
// Export the current map view to use as the item's thumbnail
RuntimeImage thumbnailImg = await MyMapView.ExportImageAsync();
// See if the map has already been saved (has an associated portal item)
if (myMap.Item == null)
{
// Get information for the new portal item
string title = TitleTextBox.Text;
string description = DescriptionTextBox.Text;
string tagText = TagsTextBox.Text;
// Make sure all required info was entered
if (String.IsNullOrEmpty(title) || String.IsNullOrEmpty(description) || String.IsNullOrEmpty(tagText))
{
throw new Exception("Please enter a title, description, and some tags to describe the map.");
}
// Call a function to save the map as a new portal item
await SaveNewMapAsync(MyMapView.Map, title, description, tagText.Split(','), thumbnailImg);
// Report a successful save
MessageDialog messageDialog = new MessageDialog("Saved '" + title + "' to ArcGIS Online!", "Map Saved");
await messageDialog.ShowAsync();
}
else
{
// This is not the initial save, call SaveAsync to save changes to the existing portal item
await myMap.SaveAsync();
// Get the file stream from the new thumbnail image
Stream imageStream = await thumbnailImg.GetEncodedBufferAsync();
// Update the item thumbnail
((PortalItem)myMap.Item).SetThumbnailWithImage(imageStream);
await myMap.SaveAsync();
// Report update was successful
MessageDialog messageDialog = new MessageDialog("Saved changes to '" + myMap.Item.Title + "'", "Updates Saved");
await messageDialog.ShowAsync();
}
}
catch (Exception ex)
{
// Report error message
MessageDialog messageDialog = new MessageDialog("Error saving map to ArcGIS Online: " + ex.Message);
await messageDialog.ShowAsync();
}
finally
{
// Hide the progress bar
SaveProgressBar.Visibility = Visibility.Collapsed;
}
}
private async void SaveMapClicked(object sender, RoutedEventArgs e)
{
try
{
// Don't attempt to save if the OAuth settings weren't provided
if (string.IsNullOrEmpty(AppClientId) || string.IsNullOrEmpty(OAuthRedirectUrl))
{
var dialog = new MessageDialog("OAuth settings were not provided.", "Cannot Save");
await dialog.ShowAsync();
SaveMapFlyout.Hide();
return;
}
// Show the progress bar so the user knows work is happening
SaveProgressBar.Visibility = Visibility.Visible;
// Get the current map
var myMap = MyMapView.Map;
// Apply the current extent as the map's initial extent
myMap.InitialViewpoint = MyMapView.GetCurrentViewpoint(ViewpointType.BoundingGeometry);
// See if the map has already been saved (has an associated portal item)
if (myMap.Item == null)
{
// Get information for the new portal item
var title = TitleTextBox.Text;
var description = DescriptionTextBox.Text;
var tagText = TagsTextBox.Text;
// Make sure all required info was entered
if (string.IsNullOrEmpty(title) || string.IsNullOrEmpty(description) || string.IsNullOrEmpty(tagText))
{
throw new Exception("Please enter a title, description, and some tags to describe the map.");
}
// Call a function to save the map as a new portal item
await SaveNewMapAsync(MyMapView.Map, title, description, tagText.Split(','));
// Report a successful save
var messageDialog = new MessageDialog("Saved '" + title + "' to ArcGIS Online!", "Map Saved");
await messageDialog.ShowAsync();
}
else
{
// This is not the initial save, call SaveAsync to save changes to the existing portal item
await myMap.SaveAsync();
// Report update was successful
var messageDialog = new MessageDialog("Saved changes to '" + myMap.Item.Title + "'", "Updates Saved");
await messageDialog.ShowAsync();
}
// Update the portal item thumbnail with the current map image
try
{
// Export the current map view
var mapImage = await Esri.ArcGISRuntime.UI.RuntimeImageExtensions.ToImageSourceAsync(await MyMapView.ExportImageAsync());
// Call a function that writes a temporary jpeg file of the map
var imagePath = await WriteTempThumbnailImageAsync(mapImage);
// Call a function to update the portal item's thumbnail with the image
UpdatePortalItemThumbnailAsync(imagePath);
}
catch
{
// Throw an exception to let the user know the thumbnail was not saved (the map item was)
throw new Exception("Thumbnail was not updated.");
}
}
catch (Exception ex)
{
// Report error message
var messageDialog = new MessageDialog("Error saving map to ArcGIS Online: " + ex.Message);
await messageDialog.ShowAsync();
}
finally
{
// Hide the progress bar
SaveProgressBar.Visibility = Visibility.Collapsed;
}
}
