topic Re: Accessing offline map after website migration in .NET Maps SDK Questions

Accessing offline map after website migration

NijuJayakumar — Tue, 01 Oct 2024 14:09:53 GMT

I have been using Oflline map in my Application. After the migration to new web portal am able to create new webmap and offline region but sharing options are only (Owner , Organization).

In the application am trying to load my offline area but it always return empty list. I am setting a API int the global context.

ArcGISPortal portal = await ArcGISPortal.CreateAsync(); PortalItem webMapItem = await PortalItem.CreateAsync(portal, PortalItemId); _originalMap = new Esri.ArcGISRuntime.Mapping.Map(webMapItem); for the web map item. _offlineMapTask = await OfflineMapTask.CreateAsync(webMapItem); IReadOnlyList<PreplannedMapArea> preplannedAreas = await _offlineMapTask.GetPreplannedMapAreasAsync(); // returns empty list

currently my plan is lite with pay as you go. do i need to update my plan to have access or i am missing some permissions.

Re: Accessing offline map after website migration

pnarkhede — Fri, 04 Oct 2024 23:31:42 GMT

Thanks for reaching out with your query.

Although the question could benefit from more details, I'll do my best to assist you with troubleshooting.

Troubleshooting Steps

Double-check all sharing settings for the web map and its layers in ArcGIS Online.
Verify that offline map areas have been successfully created for the web map.
Confirm that the offline areas are visible and accessible on ArcGIS Online.
If possible, test the offline functionality in other ArcGIS products to isolate whether the issue is specific to your application or a general problem with the web map.

Typically, if there are licensing limitations, an exception will be thrown. You might also consider running your application in developer mode, which enables all features, to see if this resolves the issue.

Re: Accessing offline map after website migration

NijuJayakumar — Tue, 08 Oct 2024 13:17:08 GMT

Thank you for your Reply.

I have cross checked all the settings.

Webmapitem is offline enabled
Offline are is successfully created

I have tested with setting API key globally (App.xaml.cs).

I have also tried to authentificate with clientID and Secret. i used the following code for user authentification (code is taken from the example).

public static void SetChallengeHandler() { // Define the server information for ArcGIS Online ServerInfo portalServerInfo = new ServerInfo(new Uri(ArcGISOnlineUrl)) { OAuthClientInfo = new OAuthClientInfo(AppClientId, new Uri(OAuthRedirectUrl)) }; // If a client secret has been configured, set the authentication type to OAuth client credentials. if (!string.IsNullOrEmpty(ClientSecret)) { // If a client secret is specified then use the TokenAuthenticationType.OAuthClientCredentials type. portalServerInfo.TokenAuthenticationType = TokenAuthenticationType.OAuthClientCredentials; portalServerInfo.OAuthClientInfo.ClientSecret = ClientSecret; } // Register this server with AuthenticationManager. AuthenticationManager.Current.RegisterServer(portalServerInfo); // Use a function in this class to challenge for credentials. AuthenticationManager.Current.ChallengeHandler = new ChallengeHandler(PromptCredentialAsync); }

Re: Accessing offline map after website migration

pnarkhede — Sat, 22 Feb 2025 01:56:50 GMT

Hey NijuJayakumar,

Thanks for the additional details. To help me investigate further, could you provide a reproducer app with the webmap you're using? That way I can try it on my side and see if I can spot any issues.