// Loads the given webmap
private async Task LoadWebMapAsync(string wmId)
{
try
{
progress.Visibility = Visibility.Visible;
var item = await ArcGISPortalItem.CreateAsync(_portal, wmId);
var webmap = await WebMap.FromPortalItemAsync(item);
var vm = await WebMapViewModel.LoadAsync(webmap, _portal);
MyMapView.Map = vm.Map;
detailsPanel.DataContext = item;
}
catch (Exception ex)
{
infoToggle.IsChecked = false;
var _ = new MessageDialog(ex.Message, "Sample Error").ShowAsync();
}
finally
{
progress.Visibility = Visibility.Collapsed;
}
}
// Initialize the display with a web map and search portal for basemaps
private async void MyMapView_Loaded(object sender, RoutedEventArgs e)
{
try
{
progress.Visibility = Visibility.Visible;
// Load initial webmap
var portal = await ArcGISPortal.CreateAsync();
var item = await ArcGISPortalItem.CreateAsync(portal, "3679c136c2694d0b95bb5e6c3f2b480e");
var webmap = await WebMap.FromPortalItemAsync(item);
_currentVM = await WebMapViewModel.LoadAsync(webmap, portal);
MyMapView.Map = _currentVM.Map;
// Load portal basemaps
var result = await portal.ArcGISPortalInfo.SearchBasemapGalleryAsync();
basemapList.ItemsSource = result.Results;
basemapList.SelectedItem = result.Results.FirstOrDefault(bm => bm.Title == "Topographic");
}
catch (Exception ex)
{
var _ = new MessageDialog(ex.Message, "Sample Error").ShowAsync();
}
finally
{
progress.Visibility = Visibility.Collapsed;
}
}
private async void MyMapView_Loaded(object sender, RoutedEventArgs e)
{
// ArcGIS Online への参照を取得
var portal = await ArcGISPortal.CreateAsync(new Uri(PORTAL_URL));
// ID を基にアイテムを取得
var item = await ArcGISPortalItem.CreateAsync(portal, "Web マップ ID");
// アイテムを Web マップとして取得
var webmap = await WebMap.FromPortalItemAsync(item);
// Web マップを格納するために WebMapViewModel を作成
var vm = await WebMapViewModel.LoadAsync(webmap, portal);
// MapView コントロールの Map プロパティに、WebMap を割り当て
MyMapView.Map = vm.Map;
// グラフィックス オーバーレイが存在しない場合は、新規に追加
if (MyMapView.GraphicsOverlays.Count == 0)
{
geocodeResultGraphicsOverlay = new GraphicsOverlay()
{
Renderer = createGeocoordingSymbol(),
};
MyMapView.GraphicsOverlays.Add(geocodeResultGraphicsOverlay);
}
isMapReady = true;
}
// Loads the given webmap
private async Task LoadWebMapAsync(string wmId)
{
try
{
progress.Visibility = Visibility.Visible;
var item = await ArcGISPortalItem.CreateAsync(_portal, wmId);
var webmap = await WebMap.FromPortalItemAsync(item);
var vm = await WebMapViewModel.LoadAsync(webmap, _portal);
mapView.Map = vm.Map;
detailsPanel.DataContext = item;
detailsPanel.Visibility = Visibility.Visible;
}
catch (Exception ex)
{
detailsPanel.Visibility = Visibility.Visible;
MessageBox.Show(ex.Message, "Sample Error");
}
finally
{
progress.Visibility = Visibility.Hidden;
}
}
// Connect to the portal identified by the SecuredPortalUrl variable and load the web map identified by WebMapId
private async void LoadSecureMap(object s, EventArgs e)
{
// Store messages that describe success or errors connecting to the secured portal and opening the web map
var messageBuilder = new System.Text.StringBuilder();
try
{
// See if a credential exists for this portal in the AuthenticationManager
// If a credential is not found, the user will be prompted for login info
CredentialRequestInfo info = new CredentialRequestInfo
{
ServiceUri = new Uri(SecuredPortalUrl),
AuthenticationType = AuthenticationType.NetworkCredential
};
Credential cred = await AuthenticationManager.Current.GetCredentialAsync(info, false);
// Create an instance of the IWA-secured portal
ArcGISPortal iwaSecuredPortal = await ArcGISPortal.CreateAsync(new Uri(SecuredPortalUrl));
// Report a successful connection
messageBuilder.AppendLine("Connected to the portal on " + iwaSecuredPortal.Uri.Host);
messageBuilder.AppendLine("Version: " + iwaSecuredPortal.CurrentVersion);
// Report the username for this connection
if (iwaSecuredPortal.CurrentUser != null)
{
messageBuilder.AppendLine("Connected as: " + iwaSecuredPortal.CurrentUser.UserName);
}
else
{
// This shouldn't happen (if the portal is truly secured)!
messageBuilder.AppendLine("Connected anonymously");
}
// Get the web map (portal item) to display
var webMap = await ArcGISPortalItem.CreateAsync(iwaSecuredPortal, WebMapId);
if (webMap != null)
{
// Create a new map from the portal item and display it in the map view
var map = new Map(webMap);
_myMapView.Map = map;
}
}
catch (Exception ex)
{
// Report error
messageBuilder.AppendLine("**-Exception: " + ex.Message);
}
finally
{
// Show an alert dialog with the status messages
var alertBuilder = new AlertDialog.Builder(this);
alertBuilder.SetTitle("Status");
alertBuilder.SetMessage(messageBuilder.ToString());
alertBuilder.Show();
}
}
/// <summary>
/// Load the specified web map.
/// </summary>
private async void LoadWebMapButtonOnClick(object sender, RoutedEventArgs e)
{
try
{
var portal = await ArcGISPortal.CreateAsync(new Uri(MyServerUrl));
var portalItem = await ArcGISPortalItem.CreateAsync(portal, WebMapTextBox.Text);
WebMap webMap = await WebMap.FromPortalItemAsync(portalItem);
if (webMap != null)
{
var myWebMapViewModel = await WebMapViewModel.LoadAsync(webMap, portal);
MyMapView.Map = myWebMapViewModel.Map;
}
}
catch (Exception ex)
{
ShowDialog(ex.Message);
}
}
private async void LoadWebMapButton_Click(object sender, RoutedEventArgs e)
{
// get a reference to the portal (ArcGIS Online)
var arcGISOnline = await ArcGISPortal.CreateAsync();
// get the id of the web map to load
var webMapId = WebMapIdTextBox.Text.Trim();
ArcGISPortalItem webMapItem = null;
// get a portal item using its ID (ArcGISWebException is thrown if the item is not found)
try
{
webMapItem = await ArcGISPortalItem.CreateAsync(arcGISOnline, webMapId);
}
catch (ArcGISWebException exp)
{
MessageBox.Show("Unable to access item '" + webMapId + "'.");
return;
}
// check type: if the item is not a web map, return
if (webMapItem.Type != Esri.ArcGISRuntime.Portal.ItemType.WebMap)
{
return;
}
// get the web map represented by the portal item
var webMap = await Esri.ArcGISRuntime.WebMap.WebMap.FromPortalItemAsync(webMapItem);
// create a WebMapViewModel and load the web map
var webMapVM = await Esri.ArcGISRuntime.WebMap.WebMapViewModel.LoadAsync(webMap, arcGISOnline);
// get the map from the view model; display it in the app's map view
this.MyMapView.Map = webMapVM.Map;
// get the list of bookmarks for the web map; bind them to the combo box
this.BookmarksComboBox.ItemsSource = webMap.Bookmarks;
this.BookmarksComboBox.DisplayMemberPath = "Name";
}
/// <summary>
/// Get a web map from the selected portal item and display it in the app.
/// </summary>
private async void AddMapItem_Click(object sender, RoutedEventArgs e)
{
if (this.MapItemListBox.SelectedItem == null)
{
return;
}
// Clear status messages
MessagesTextBlock.Text = string.Empty;
var sb = new StringBuilder();
try
{
// Clear the current MapView control from the app
MyMapGrid.Children.Clear();
// See if we're using the public or secured portal; get the appropriate object reference
ArcGISPortal portal = null;
if (_usingPublicPortal)
{
portal = _publicPortal;
}
else
{
portal = _iwaSecuredPortal;
}
// Throw an exception if the portal is null
if (portal == null)
{
throw new Exception("Portal has not been instantiated.");
}
// Get the portal item ID from the selected listbox item (read it from the Tag property)
var itemId = (this.MapItemListBox.SelectedItem as ListBoxItem).Tag.ToString();
// Use the item ID to create an ArcGISPortalItem from the appropriate portal
var portalItem = await ArcGISPortalItem.CreateAsync(portal, itemId);
// Create a WebMap from the portal item (all items in the list represent web maps)
var webMap = await WebMap.FromPortalItemAsync(portalItem);
if (webMap != null)
{
// Create a WebMapViewModel using the WebMap
var myWebMapViewModel = await WebMapViewModel.LoadAsync(webMap, portal);
// Create a new MapView control to display the WebMapViewModel's Map; add it to the app
var mv = new MapView {
Map = myWebMapViewModel.Map
};
MyMapGrid.Children.Add(mv);
}
// Report success
sb.AppendLine("Successfully loaded web map from item #" + itemId + " from " + portal.Uri.Host);
}
catch (Exception ex)
{
// Add an error message
sb.AppendLine("Error accessing web map: " + ex.Message);
}
finally
{
// Show messages
MessagesTextBlock.Text = sb.ToString();
}
}
private async void LoadWebMapButton_TouchUpInside(object sender, EventArgs e)
{
// Store messages that describe success or errors connecting to the secured portal and opening the web map
var messageBuilder = new System.Text.StringBuilder();
try
{
// See if a credential exists for this portal in the AuthenticationManager
// If a credential is not found, the user will be prompted for login info
CredentialRequestInfo info = new CredentialRequestInfo
{
ServiceUri = new Uri(SecuredPortalUrl),
AuthenticationType = AuthenticationType.NetworkCredential
};
Credential cred = await AuthenticationManager.Current.GetCredentialAsync(info, false);
// Create an instance of the IWA-secured portal
ArcGISPortal iwaSecuredPortal = await ArcGISPortal.CreateAsync(new Uri(SecuredPortalUrl));
// Report a successful connection
messageBuilder.AppendLine("Connected to the portal on " + iwaSecuredPortal.Uri.Host);
messageBuilder.AppendLine("Version: " + iwaSecuredPortal.CurrentVersion);
// Report the username for this connection
if (iwaSecuredPortal.CurrentUser != null)
{
messageBuilder.AppendLine("Connected as: " + iwaSecuredPortal.CurrentUser.UserName);
}
else
{
// This shouldn't happen (if the portal is truly secured)!
messageBuilder.AppendLine("Connected anonymously");
}
// Get the web map (portal item) to display
var webMap = await ArcGISPortalItem.CreateAsync(iwaSecuredPortal, WebMapId);
if (webMap != null)
{
// Create a new map from the portal item and display it in the map view
var map = new Map(webMap);
_myMapView.Map = map;
}
}
catch (TaskCanceledException)
{
// Report canceled login
messageBuilder.AppendLine("Login was canceled");
}
catch (Exception ex)
{
// Report error
messageBuilder.AppendLine("Exception: " + ex.Message);
}
finally
{
// Set the task completion source to null so user can attempt another login (if it failed)
_loginTaskCompletionSrc = null;
// Display the status of the login
UIAlertView alert = new UIAlertView("Status", messageBuilder.ToString(), null, "OK");
alert.Show();
}
}
