Latest Contributions by BryanRoth

Not sure if you're looking for my config or the OPs but I'm using 100.4 and XF 3.4.0.1008975. It's interesting that your results seem to indicate it might be a XF issue, depending upon what prompted their change. For what it's worth, I've been running our app without caching the map and found that the performance loss seems to be tied around the fact that the map image has to be reloaded. If I understand correctly, ESRI SDK docs say the image tiles are cached locally but I'm not sure of that as it seems to delay like its pulling them (never invested time into confirming). Creating and destroying it seems pretty quick with no noticeable delays in page switching, except the 1st time the map is viewed/loaded which I'd expect. I had to place the users view settings (BaseMap/layer/etc) into App Settings (or just a static for the current instance) to keep their choices intact across page views. No, it's not ideal and I'd prefer to be able to cache it if I could but at this point it's not important enough. ... View more

I'll paste that below but I've applied 2x VS updates (IIRC) since that time so it's not going to be accurate to when I originally wrote this up. However, creating a new ArcGISApp (Xamarin.Forms .NET Standard) as I did before still creates a default project with no ArcGIS NuGet package references in the platform specific projects. So from my POV the problem is still there. Visual Studio > Help > About is below: ______________________________________________________ Microsoft Visual Studio Enterprise 2017 Version 15.9.5 VisualStudio.15.Release/15.9.5+28307.280 Microsoft .NET Framework Version 4.7.03056 Installed Version: Enterprise Architecture Diagrams and Analysis Tools   00369-60000-00001-AA225 Microsoft Architecture Diagrams and Analysis Tools Visual C++ 2017   00369-60000-00001-AA225 Microsoft Visual C++ 2017 Application Insights Tools for Visual Studio Package   8.14.11009.1 Application Insights Tools for Visual Studio ArcGIS Runtime SDK for .NET   100.4.0 ArcGIS Runtime SDK for .NET allows developers to build immersive, native mapping applications for Windows, Android, and iOS devices using C#.  It includes five APIs: WPF to create apps for Windows Desktop, UWP to create Universal Windows apps, Xamarin.Android and Xamarin.iOS for Android and iOS apps that need access to native functionality, and Xamarin.Forms to create apps that share UI layouts across Android, iOS, and UWP. ASP.NET and Web Tools 2017   15.9.04012.0 ASP.NET and Web Tools 2017 ASP.NET Core Razor Language Services   15.8.31590 Provides languages services for ASP.NET Core Razor. ASP.NET Web Frameworks and Tools 2017   5.2.60913.0 For additional information, visit https://www.asp.net/ Azure App Service Tools v3.0.0   15.9.03024.0 Azure App Service Tools v3.0.0 C# Tools   2.10.0-beta2-63501-03+b9fb1610c87cccc8ceb74a770dba261a58e39c4a C# components used in the IDE. Depending on your project type and settings, a different version of the compiler may be used. Common Azure Tools   1.10 Provides common services for use by Azure Mobile Services and Microsoft Azure Tools. Dotfuscator Community Edition   5.36.0.7050-e77ce80a6 PreEmptive Protection - Dotfuscator CE Extensibility Message Bus   1.1.49 (remotes/origin/d15-8@ee674f3) Provides common messaging-based MEF services for loosely coupled Visual Studio extension components communication and integration. GitExtensions   1.0 Git Extensions is a graphical user interface for Git that allows you to control Git without using the command-line JavaScript Language Service   2.0 JavaScript Language Service JavaScript Project System   2.0 JavaScript Project System JavaScript UWP Project System   2.0 JavaScript UWP Project System JetBrains ReSharper Ultimate 2018.3.1   Build 183.0.20181225.200351 JetBrains ReSharper Ultimate package for Microsoft Visual Studio. For more information about ReSharper Ultimate, visit http://www.jetbrains.com/resharper. Copyright © 2019 JetBrains, Inc. Microsoft Continuous Delivery Tools for Visual Studio   0.4 Simplifying the configuration of Azure DevOps pipelines from within the Visual Studio IDE. Microsoft JVM Debugger   1.0 Provides support for connecting the Visual Studio debugger to JDWP compatible Java Virtual Machines Microsoft Library Manager   1.0 Install client-side libraries easily to any web project Microsoft MI-Based Debugger   1.0 Provides support for connecting Visual Studio to MI compatible debuggers Microsoft Visual C++ Wizards   1.0 Microsoft Visual C++ Wizards Microsoft Visual Studio Tools for Containers   1.1 Develop, run, validate your ASP.NET Core applications in the target environment. F5 your application directly into a container with debugging, or CTRL + F5 to edit & refresh your app without having to rebuild the container. Microsoft Visual Studio VC Package   1.0 Microsoft Visual Studio VC Package MLGen Package Extension   1.0 MLGen Package Visual Studio Extension Detailed Info Mono Debugging for Visual Studio   4.13.12-pre (9bc9548) Support for debugging Mono processes with Visual Studio. NuGet Package Manager   4.6.0 NuGet Package Manager in Visual Studio. For more information about NuGet, visit http://docs.nuget.org/. Productivity Power Tools 2017/2019   16.0 Installs the individual extensions of Productivity Power Tools 2017/2019 ProjectServicesPackage Extension   1.0 ProjectServicesPackage Visual Studio Extension Detailed Info ResourcePackage Extension   1.0 ResourcePackage Visual Studio Extension Detailed Info ResourcePackage Extension   1.0 ResourcePackage Visual Studio Extension Detailed Info SQL Server Data Tools   15.1.61901.03220 Microsoft SQL Server Data Tools Test Adapter for Boost.Test   1.0 Enables Visual Studio's testing tools with unit tests written for Boost.Test.  The use terms and Third Party Notices are available in the extension installation directory. Test Adapter for Google Test   1.0 Enables Visual Studio's testing tools with unit tests written for Google Test.  The use terms and Third Party Notices are available in the extension installation directory. TypeScript Tools   15.9.20918.2001 TypeScript Tools for Microsoft Visual Studio Visual Basic Tools   2.10.0-beta2-63501-03+b9fb1610c87cccc8ceb74a770dba261a58e39c4a Visual Basic components used in the IDE. Depending on your project type and settings, a different version of the compiler may be used. Visual C++ for Cross Platform Mobile Development (Android)   15.0.28107.00 Visual C++ for Cross Platform Mobile Development (Android) Visual C++ for Cross Platform Mobile Development (iOS)   15.0.28016.00 Visual C++ for Cross Platform Mobile Development (iOS) Visual F# Tools 10.2 for F# 4.5   15.8.0.0.  Commit Hash: 6e26c5bacc8c4201e962f5bdde0a177f82f88691. Microsoft Visual F# Tools 10.2 for F# 4.5 Visual Studio Code Debug Adapter Host Package   1.0 Interop layer for hosting Visual Studio Code debug adapters in Visual Studio Visual Studio Spell Check Everywhere   VSSpellCheckEverywhere An extension that enables spell checking within any Visual Studio file editor or tool window that uses WPF text boxes. https://GitHub.com/EWSoftware/VSSpellChecker Visual Studio Spell Checker   VSSpellChecker An editor extension that checks the spelling of comments, strings, and plain text as you type or interactively with tool windows. https://GitHub.com/EWSoftware/VSSpellChecker Visual Studio Tools for CMake   1.0 Visual Studio Tools for CMake Visual Studio Tools for Containers   1.0 Visual Studio Tools for Containers Visual Studio Tools for Unity   3.9.0.3 Visual Studio Tools for Unity Visual Studio Tools for Universal Windows Apps   15.0.28307.208 The Visual Studio Tools for Universal Windows apps allow you to build a single universal app experience that can reach every device running Windows 10: phone, tablet, PC, and more. It includes the Microsoft Windows 10 Software Development Kit. VisualStudio.Mac   1.0 Mac Extension for Visual Studio Xamarin   4.12.3.78 (d15-9@a9bbf702f) Visual Studio extension to enable development for Xamarin.iOS and Xamarin.Android. Xamarin Designer   4.16.13 (45a16efd4) Visual Studio extension to enable Xamarin Designer tools in Visual Studio. Xamarin Templates   1.1.128 (6f5ebb2) Templates for building iOS, Android, and Windows apps with Xamarin and Xamarin.Forms. Xamarin.Android SDK   9.1.5.0 (HEAD/4b951a3e7) Xamarin.Android Reference Assemblies and MSBuild support. Xamarin.iOS and Xamarin.Mac SDK   12.2.1.12 (65ec520) Xamarin.iOS and Xamarin.Mac Reference Assemblies and MSBuild support. ... View more

Be warned, if you install the VS package (ArcGIS_Runtime_SDK_DotNet_100_4_0.vsix) the templates for ArcGIS Cross-Platform apps crash. After you create the project using the installed templates you must update the platform specific projects by adding the ArcGIS platform specific NuGet packages. https://community.esri.com/message/818418-arcgis-runtime-sdk-for-net-references-missing-in-docssamples-xamarin-xamarinforms ... View more

NP...  I might try a few more things before I need to move on. You can remove the Map object instance from the ViewModel and it still fails. Pull out the MapView object from the xaml and the problem goes away. ... View more

Yea, never mind. I see this now as well. When I get an exception that provides useful info (rather than a timeout error) it's complaining about the following: "The specified child already has a parent. You must call removeView() on the child's parent first." For what its worth I stepped through with the debugger and the NavigationPage that has the map as its root page has it's Parent property set to null when it's removed/replaced as the Detail. So I'm not quite sure why it's complaining in the MapPage's situation. Other pages work fine. It's really easy to reproduce by adding a map page to a Default Visual Studio Cross-Platform Xamarin Forms App using the Master/Detail option. Add a simple MapPage and then edit the NavigateFromMenu method with a quick cut and paste. The 2nd time you view the map it will crash. (If you create a new NavigationPage and MapPage combo every time it works just fine.) Snippet public async Task NavigateFromMenu(MenuItemType id) {     if (!MenuPages.ContainsKey(id))     {         switch (id)         {             case MenuItemType.Browse:                 MenuPages.Add(id, new NavigationPage(new ItemsPage()));                 break;             case MenuItemType.Map:                 MenuPages.Add(id, new NavigationPage(new MapPage()));                 break;             case MenuItemType.loginLogout:                 MenuPages.Add(id, new NavigationPage(new LoginPage()));                 break;             case MenuItemType.About:                 MenuPages.Add(id, new NavigationPage(new AboutPage()));                 break;         }     } Here's my stack trace.      0xFFFFFFFFFFFFFFFF in System.Diagnostics.Debugger.Mono_UnhandledException_internal    C#      0x1 in System.Diagnostics.Debugger.Mono_UnhandledException    C#      0x33 in object.37    C#      0x12 in System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw    C#      0x89 in Java.Interop.JniEnvironment.InstanceMethods.CallNonvirtualVoidMethod    C#      0x5F in Java.Interop.JniPeerMembers.JniInstanceMethods.InvokeVirtualVoidMethod    C#      0x4B in Android.Views.ViewGroup.AddView    C#      0x76 in Xamarin.Forms.Platform.Android.ViewRenderer<Esri.ArcGISRuntime.Xamarin.Forms.GeoView,Esri.ArcGISRuntime.UI.Controls.GeoView>.SetNativeControl at D:\a\1\s\Xamarin.Forms.Platform.Android\ViewRenderer.cs:308,4    C#      0x3 in Xamarin.Forms.Platform.Android.ViewRenderer<Esri.ArcGISRuntime.Xamarin.Forms.GeoView,Esri.ArcGISRuntime.UI.Controls.GeoView>.SetNativeControl at D:\a\1\s\Xamarin.Forms.Platform.Android\ViewRenderer.cs:247,4    C#      0x22 in Esri.ArcGISRuntime.Xamarin.Forms.GeoViewRenderer.OnElementChanged at C:\daily_r\api_xam\dotnet\api\src\Esri.ArcGISRuntime\Esri.ArcGISRuntime.Xamarin.Forms.Shared\GeoView\GeoViewRenderer.cs:40,17    C#      0xCB in Xamarin.Forms.Platform.Android.VisualElementRenderer<Esri.ArcGISRuntime.Xamarin.Forms.GeoView>.SetElement at D:\a\1\s\Xamarin.Forms.Platform.Android\VisualElementRenderer.cs:210,4    C#      0x2E in Xamarin.Forms.Platform.Android.VisualElementRenderer<Esri.ArcGISRuntime.Xamarin.Forms.GeoView>.Xamarin.Forms.Platform.Android.IVisualElementRenderer.SetElement at D:\a\1\s\Xamarin.Forms.Platform.Android\VisualElementRenderer.cs:125,4    C#      0x21 in Xamarin.Forms.Platform.Android.Platform.CreateRenderer at D:\a\1\s\Xamarin.Forms.Platform.Android\Platform.cs:330,4    C#      0xC0 in Xamarin.Forms.Platform.Android.VisualElementPackager.AddChild at D:\a\1\s\Xamarin.Forms.Platform.Android\VisualElementPackager.cs:120,6    C#      0x14C in Xamarin.Forms.Platform.Android.VisualElementPackager.SetElement at D:\a\1\s\Xamarin.Forms.Platform.Android\VisualElementPackager.cs:268,6    C#      0x8 in Xamarin.Forms.Platform.Android.VisualElementPackager.Load at D:\a\1\s\Xamarin.Forms.Platform.Android\VisualElementPackager.cs:92,4    C#      0x8 in Xamarin.Forms.Platform.Android.VisualElementRenderer<Xamarin.Forms.View>.SetPackager at D:\a\1\s\Xamarin.Forms.Platform.Android\VisualElementRenderer.cs:388,4    C#      0xE8 in Xamarin.Forms.Platform.Android.VisualElementRenderer<Xamarin.Forms.View>.SetElement at D:\a\1\s\Xamarin.Forms.Platform.Android\VisualElementRenderer.cs:213,5    C#      0x2E in Xamarin.Forms.Platform.Android.VisualElementRenderer<Xamarin.Forms.View>.Xamarin.Forms.Platform.Android.IVisualElementRenderer.SetElement at D:\a\1\s\Xamarin.Forms.Platform.Android\VisualElementRenderer.cs:125,4    C#      0x21 in Xamarin.Forms.Platform.Android.Platform.CreateRenderer at D:\a\1\s\Xamarin.Forms.Platform.Android\Platform.cs:330,4    C#      0xC0 in Xamarin.Forms.Platform.Android.VisualElementPackager.AddChild at D:\a\1\s\Xamarin.Forms.Platform.Android\VisualElementPackager.cs:120,6    C#      0x14C in Xamarin.Forms.Platform.Android.VisualElementPackager.SetElement at D:\a\1\s\Xamarin.Forms.Platform.Android\VisualElementPackager.cs:268,6    C#      0x8 in Xamarin.Forms.Platform.Android.VisualElementPackager.Load at D:\a\1\s\Xamarin.Forms.Platform.Android\VisualElementPackager.cs:92,4    C#      0x8 in Xamarin.Forms.Platform.Android.VisualElementRenderer<Xamarin.Forms.Page>.SetPackager at D:\a\1\s\Xamarin.Forms.Platform.Android\VisualElementRenderer.cs:388,4    C#      0xE8 in Xamarin.Forms.Platform.Android.VisualElementRenderer<Xamarin.Forms.Page>.SetElement at D:\a\1\s\Xamarin.Forms.Platform.Android\VisualElementRenderer.cs:213,5    C#      0x2E in Xamarin.Forms.Platform.Android.VisualElementRenderer<Xamarin.Forms.Page>.Xamarin.Forms.Platform.Android.IVisualElementRenderer.SetElement at D:\a\1\s\Xamarin.Forms.Platform.Android\VisualElementRenderer.cs:125,4    C#      0x33 in Xamarin.Forms.Platform.Android.Platform.CreateRenderer at D:\a\1\s\Xamarin.Forms.Platform.Android\Platform.cs:377,4    C#      0x1B in Xamarin.Forms.Platform.Android.AppCompat.FragmentContainer.OnCreateView at D:\a\1\s\Xamarin.Forms.Platform.Android\AppCompat\FragmentContainer.cs:50,5    C#      0x24 in Android.Support.V4.App.Fragment.n_OnCreateView_Landroid_view_LayoutInflater_Landroid_view_ViewGroup_Landroid_os_Bundle_    C#      0x23 in object.37    C# ... 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Are you in Debug and seeing lots of Task Canceled exceptions in the output window?  If so this is something that they are aware of and generates this question frequently as it did with me. See this thread: A lot of web exceptions at runtime even in arcgis-runtime-samples-dotnet-master project  ... View more

I'll mention this because it caused me headaches for quite some time and resulted in lots of unhanded Win32 exceptions in my UWP app but worked fine in Android.  Do you have the appropriate platform specific ArcGIS NuGet packages referenced in your Android/iOS projects?  It's seems that they are not referenced in the Solution generated by the Visual Studio ArcGIS New Project template and you need to add them. ... View more

Trying to evaluate the .NET SDK and I'm seeing the same issue as the OP with 100.4.0: Exception thrown: 'System.Threading.Tasks.TaskCanceledException' in System.Private.CoreLib.dll Exception thrown: 'System.Threading.Tasks.TaskCanceledException' in System.Net.Http.dll Exception thrown: 'System.OperationCanceledException' in System.Net.Http.dll Exception thrown: 'System.OperationCanceledException' in System.Net.Http.dll Exception thrown: 'System.OperationCanceledException' in System.Private.CoreLib.dll Exception thrown: 'System.OperationCanceledException' in System.Private.CoreLib.dll Exception thrown: 'System.OperationCanceledException' in System.Private.CoreLib.dll Map updates are horribly slow as well. It's so slow it's unusable. I've noted that the assembly where the throw has originated has changed but the explanation is likely the same.  I't would seem that I'm not experiencing either of the benefits you mention (performance/lack of exceptions). Any reason the API doesn't wait for the user to finish zoom/pan before submitting the request to "filter" it down a bit rather than making so many requests? It seems like every UI event is generating a request rather than starting a timer to de-bounce the request. ... View more