Latest Contributions by MarkCollins

In our application we are experiencing crashes, freezes, and failure to load the basemaps when the map control is loaded/unloaded multiple times during the maps lifecycle.  (Loading/unloading of a control may happen normally in WPF for many reasons, the most common is probably if the control is inside a TabControl. )  The only error message we are receiving is "The program '[24076] MyApp.exe' has exited with code -529697949 (0xe06d7363) 'Microsoft C++ Exception'." in the output window. I've attached a sample application that demonstrations the issue. The sample has two methods to reproduce the issue: 1) Automatic -  It will automate the switching of tabs/adding & removing graphics. This has consistently reproduced the issue on 3 separate dev enviroments (win 10 x64). It takes approx 20 seconds to execute. 2) Manual - This will reproduce the issue on 2 out 3 of our dev enviroments (all win 10 x64). Steps included in the sample. The sample also includes a flag called m_EnableMitigation which will activate code that helps mitigate the issue by removing and re-adding graphics layers to the map when it is loaded. We've called this a mitigation rather than a work around because it does not work 100% of the time. Its still possible to cause the issue if the control is loaded/unload very quickly by manually switching tabs or programmatically.  I think our issue may possibly be related to this post as well: https://community.esri.com/message/763969-re-application-crash-frequent-win32-exceptions-in-1002?commentID=763969#commen…  Please let me know if there is anyway to fix this issue. We will not be able to ship our application with this bug the way it is.  Thanks, Mark ... View more

What would be the recommended way to implement a click and drag selection marquee for selecting multiple features?  Should I use the Sketch editor to allow the user to draw a rectangle, get the geometry from the drawn shape, and then use SelectFeaturesAsync ?  Or is there better/easier way to support this functionality?  I've attached a screenshot that shows what I'm trying to accomplish.  Thanks, Mark ... View more

Hello, I was wondering if there is a way to get the symbol for a FeatureTemplate?  I'm trying to build a grid of feature templates for the user to choose from when editing a map layer. In the old WPF API it used to work this way... featuretemplate.GetSymbol(layer.Renderer) I haven't been able to find anything that appears to be equivalent in the docs or object model.  Thanks, Mark ... View more

I am using the runtime in Xamarin forms and wanted to know if there is any way to easily get the current device location with out actually creating a map view?   I am familiar with using the LocationDisplay class (arcgis-runtime-samples-dotnet/src/Forms/Shared/Samples/Location/DisplayDeviceLocation at master · Esri/arcgis-runtime-sa… ) to show the users location on the map but I would like to just get the coordinates without displaying the map.  When the user presses a button on my form I would like to get the x/y for the users current location and save it to my database. I do not need to actually display a map at the time the user is clicking the button. I know its possible to use a xamarin plugin such as this:NuGet Gallery | Xam.Plugin.Geolocator 4.1.2   but I would really like to avoid adding another nuget package to my project since the the ArcGIS runtime is obviously capable of getting the device coordinates to display on the map.  Thanks, Mark ... View more