Hello,
We are developing an app with ArcGIS Runtime .NET 100.0.0, that offers interaction with offline maps.
In general we are using the MVVM Model. The MapView.Map binds to a ViewModel.class Map Property CurrentMap. This class also contains a Map Property OfflineMap, which holds reference to a corresponding Map with offline-content .
During initial loading (with some async stuff in previous steps), the (offline) Layers are attached to the OfflineMap Map and after awaiting OfflineMap.LoadAsync(); the Property CurrentMap is assigned to OfflineMap.
Our problem is that the app crashes randomly at the line
this.ProjectManagerViewModelInstance.CurrentMap = this.ProjectManagerViewModelInstance.OfflineMap;
with an exception we cannot handle.The output window shows:
[â¦MyApp...]WPF.vshost.exe' has exited with code -1073741819 (0xc0000005) 'Access violation'.
public async Task LoadProjectWithTaskSampleAsync(
object param)
{
try
{
#region checkProject
// our "progressbar"
this.ToogleReporter("CheckProject",true);
//read project information from parameter
var pi = await this.ProjectManagerViewModelInstance.InitConnectionInformationAsync(param);
if (pi == null)
{
Log.Warn(" ... ");
this.ToogleReporter("CheckProject",false);
return;
}
this.ToogleReporter("CheckProject",false);
#endregion checkProject
this.ToogleReporter("LoadProject", true);
//MAP CREATION AND ASSIGN TO OFFLINE MAP PROPERTY (and other stuff like processing layer infos ...)
await this.ProjectManagerViewModelInstance.LoadProjectAsync(pi);
// check if all information could be loaded properly
if (await this.TryToOpenProjectAsync(pi))
{
this.ToogleReporter("LoadProject", false);
Log.Error("...");
return;
}
// Check if offline map has layers
var offlineMapAllLayers = this.ProjectManagerViewModelInstance?.OfflineMap?.AllLayers;
if (offlineMapAllLayers != null && offlineMapAllLayers.Any())
{
Log.Debug("Await call OfflineMap.LoadAsync()");
await this.ProjectManagerViewModelInstance.OfflineMap.LoadAsync();
this.ProjectManagerViewModelInstance.CurrentMap = this.ProjectManagerViewModelInstance.OfflineMap;
}
IsLoadingProject = false;
}
catch (Exception e)
{
Log.Error("Loading Project Failed. Abort! ",e);
}
finally
{
this.ToogleReporter("LoadProject", false);
this.EndOfLoadingProject();
}
}
The offline map contains 1 vtpk (52 MB), 1 tpk (15 GB) and 2 mmpks(85 MB and 3 MB). The problem seems to occur only on offline maps with *.mmpks (but still randomly).
Can you help us? I attach the memory dumps, maybe it helps.
Thank you
We are using:
Microsoft Visual Studio Professional 2015
Version 14.0.25421.03 Update 3
Microsoft .NET Framework
Version 4.6.01586
Installed Version: Professional
Visual C# 2015 00322-40000-00000-AA460
Microsoft Visual C# 2015
ArcGIS Runtime SDK for .NET 100.0.0
Microsoft Windows 10 Enterprise
