Latest Contributions by AnttiKajanus1

Hmm, that sounds a bit weird. If you already have authenticated and you can access the portal with given credentials then it sounds that for some reason that isn't attached correctly or there are other privileges that doesn't match.  You should see the error in the results object for the basemap, can you confirm that? Or is the await actually throwing an exception? How do you provide the credential for GenerateOfflineMapJob? OfflineMapTask (and job) doesn't support setting credentials directly since the task might be accessing multiple domain so you have to hook into AuthenticationManager.  I added a simple example to this response.  I assume that you are using a basemap from the basemap gallery which requires you to authenticate the user since using the export tiles operation is shared as subscriber content. The operation doesn't use credits but requires the user be authenticated. If you don't use our basemaps and those services exposes export tiles operation and none of the feature services requires authentication, you shouldn't see that prompted.  Here is an example how to hook authentication to the job.  using Esri.ArcGISRuntime.Geometry; using Esri.ArcGISRuntime.Mapping; using Esri.ArcGISRuntime.Portal; using Esri.ArcGISRuntime.Security; using Esri.ArcGISRuntime.Tasks.Offline; using System; using System.IO; using System.Linq; using System.Threading.Tasks; using System.Windows; namespace WaterNetworkDemo {     public partial class MainWindow : Window     {         private const string PORTAL_ITEM_ID = "19df6a8e2c694a3c958778ac25398f26";         private string offlineDataFolder;                 public MainWindow()         {             InitializeComponent();             AuthenticationManager.Current.ChallengeHandler = new ChallengeHandler(CreateKnownCredentials);             Initialize();         }         private async void Initialize()         {             try             {                 Map offlineMap = null;                 MobileMapPackage offlineMapPackage = null;                 offlineDataFolder = Path.Combine(Directory.GetCurrentDirectory(), "OfflineMaps", "WaterNetwork.mmpk");                 try                 {                     // Try to open the package, if there isn't a valid package at this location an error will be thrown                     offlineMapPackage = await MobileMapPackage.OpenAsync(offlineDataFolder);                     offlineMap = offlineMapPackage.Maps.First();                 }                 catch (FileNotFoundException)                 {                     // If there isn't a valid offline map package in provided path, this is thrown.                 }                 // Package was not found, lets create it and download it to that location                 if (offlineMapPackage == null)                 {                     loadingIndicator.Visibility = Visibility.Collapsed;                     busyIndicator.Visibility = Visibility.Visible;                     // Folder doesn't exist, lets create it and download the data                     Directory.CreateDirectory(offlineDataFolder);                     offlineMap = await GenerateOfflineMapAsync(offlineDataFolder, PORTAL_ITEM_ID);                 }                 // Hide loading indicators after the map has been opened / downloaded                 loadingIndicator.Visibility = Visibility.Collapsed;                 busyIndicator.Visibility = Visibility.Collapsed;                 if (offlineMap != null)                 {                     // Zoom to last specific viewpoint when the map is added to the mapview.                   //  offlineMap.InitialViewpoint = offlineMap.Bookmarks.Last().Viewpoint;                     // Show the offline map                     MyMapView.Map = offlineMap;                 }                 else                 {                     // For some reason we don't have offline map available, show error message                     mapNoAvailable.Visibility = Visibility.Visible;                 }             }             catch (Exception ex)             {                 // Something unexpected happened, handle properly                 MessageBox.Show(ex.Message);             }         }         private async Task<Map> GenerateOfflineMapAsync(string path, string webmapItemId)         {             Map offlineMap = null;             try             {                 #region 1) Create an offline map task                 // Load portal, using ArcGIS Online in this case                 ArcGISPortal portal = await ArcGISPortal.CreateAsync();                 // Create a map that is taken offline based on item id                 PortalItem webmapItem = await PortalItem.CreateAsync(portal, webmapItemId);                 // Create the area that is taken offline, use extent defined in the portal item                 var areaOfInterest = GeometryEngine.Project(webmapItem.Extent, SpatialReferences.WebMercator);                 // Create task and parameters                 OfflineMapTask task = await OfflineMapTask.CreateAsync(webmapItem);                 #endregion                 #region 2) Specify parameters                 // Create default parameters                 GenerateOfflineMapParameters parameters =                       await task.CreateDefaultGenerateOfflineMapParametersAsync(areaOfInterest);                 parameters.MinScale = 200000;                 parameters.MaxScale = 1250;                 #endregion                 #region 3) Generate offline map, report progress and use offline map                 // Create a job and hook progress changed reporting                 var job = task.GenerateOfflineMap(parameters, path);                 job.ProgressChanged += (s, e) =>                 {                     // Update progress to UI, ensure that this is done in UI thread                     Dispatcher.Invoke(() =>                     {                         Percentage.Text = job.Progress > 0 ? $"{job.Progress.ToString()} %" : string.Empty;                     });                 };                 // Execute job and wait until the map has been taken offline                 GenerateOfflineMapResult results = await job.GetResultAsync();                 // Set offline map from the results                 offlineMap = results.OfflineMap;                 #endregion             }             catch (TaskCanceledException)             {                 // Thrown if the operation was cancelled             }             catch (Exception ex)             {                 MessageBox.Show(ex.Message, "Taking map offline failed.");             }             // Return offline map or null if taking the map offline failed             return offlineMap;         }         private string _username = "username";         private string _password = "password";         private async Task<Credential> CreateKnownCredentials(CredentialRequestInfo info)         {             // If this isn't the expected resource, the credential will stay null             Credential knownCredential = null;             try             {                 // Create a credential for this resource                 knownCredential = await AuthenticationManager.Current.GenerateCredentialAsync                                         (info.ServiceUri,                                          _username,                                          _password,                                          info.GenerateTokenOptions);             }             catch (Exception ex)             {                 // Report error accessing a secured resource                 MessageBox.Show("Access to " + info.ServiceUri.AbsoluteUri + " denied. " + ex.Message, "Credential Error");             }             // Return the credential             return knownCredential;         }     } } ‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍ <Window x:Class="WaterNetworkDemo.MainWindow"         xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"         xmlns:d="http://schemas.microsoft.com/expression/blend/2008"         xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"         xmlns:esri="http://schemas.esri.com/arcgis/runtime/2013"         xmlns:local="clr-namespace:WaterNetworkDemo"         xmlns:converters="clr-namespace:WaterNetworkDemo.DataConverters"         mc:Ignorable="d"         Title="MainWindow" Height="525" Width="790">     <Grid>         <esri:MapView x:Name="MyMapView"/>         <TextBlock x:Name="mapNoAvailable" HorizontalAlignment="Center" VerticalAlignment="Center" FontSize="18"                    Text="Map isn't currently available." Visibility="Collapsed"></TextBlock>         <Grid x:Name="busyIndicator" Background="#807f7f7f" Visibility="Collapsed">             <Grid HorizontalAlignment="Center" VerticalAlignment="Center">                 <Grid.RowDefinitions>                     <RowDefinition Height="auto"/>                     <RowDefinition Height="auto"/>                     <RowDefinition Height="auto"/>                 </Grid.RowDefinitions>                 <TextBlock Foreground="White" Margin="10" FontSize="18" HorizontalAlignment="Center" VerticalAlignment="Center">                     <Run Text="Generating offline map... "></Run>                     <Run x:Name="Percentage" Text=""></Run>                 </TextBlock>                 <ProgressBar x:Name="progressBar" Minimum="0" Maximum="100"                              IsEnabled="True" IsIndeterminate="True" Width="100" HorizontalAlignment="Center" VerticalAlignment="Center" Grid.Row="1" Height="10" Margin="0,0,0,10"/>              </Grid>         </Grid>         <Grid x:Name="loadingIndicator" Background="#807f7f7f" Visibility="Visible">             <Grid HorizontalAlignment="Center" VerticalAlignment="Center">                 <Grid.RowDefinitions>                     <RowDefinition Height="auto"/>                     <RowDefinition Height="auto"/>                 </Grid.RowDefinitions>                 <TextBlock Text="Loading online map..." Foreground="White" Margin="10" FontSize="18"/>                 <ProgressBar IsEnabled="True" IsIndeterminate="True" Width="100" Height="10" HorizontalAlignment="Center" VerticalAlignment="Center" Grid.Row="1"/>             </Grid>         </Grid>     </Grid> </Window> ‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍ ... View more