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UtilityNetwork.GetFeaturesForElementsAsync not returning all features

JoeHershman

I am running a network trace (Find Connected) which does seem to return all the network elements. However, when I try to get the features using UtilityNetwork.GetFeaturesForElementsAsync Method I do not get anywhere close to the number of features as their are elements. For instance with the Gas Pipe I get 5856 elements returned. Calling GetFeaturesForElementsAsync I get 14 features returned.

I am using the code from the sample and don't see any settings I could change to impact the conversion

<SPAN class="keyword token">var</SPAN> elements <SPAN class="operator token">=</SPAN> traceResult<SPAN class="punctuation token">.</SPAN>Elements<SPAN class="punctuation token">.</SPAN><SPAN class="token function">Where</SPAN><SPAN class="punctuation token">(</SPAN>e <SPAN class="operator token">=</SPAN><SPAN class="operator token">></SPAN> e<SPAN class="punctuation token">.</SPAN>NetworkSource<SPAN class="punctuation token">.</SPAN>Name <SPAN class="operator token">==</SPAN> featureLayer<SPAN class="punctuation token">.</SPAN>FeatureTable<SPAN class="punctuation token">.</SPAN>TableName<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">.</SPAN><SPAN class="token function">ToList</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
<SPAN class="keyword token">if</SPAN> <SPAN class="punctuation token">(</SPAN> <SPAN class="operator token">!</SPAN>elements<SPAN class="punctuation token">.</SPAN><SPAN class="token function">Any</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN> <SPAN class="punctuation token">)</SPAN> <SPAN class="keyword token">continue</SPAN><SPAN class="punctuation token">;</SPAN>

features <SPAN class="operator token">=</SPAN> <SPAN class="punctuation token">(</SPAN><SPAN class="keyword token">await</SPAN> _utilityNetwork<SPAN class="punctuation token">.</SPAN><SPAN class="token function">GetFeaturesForElementsAsync</SPAN><SPAN class="punctuation token">(</SPAN>elements<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">.</SPAN><SPAN class="token function">ToList</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
<SPAN class="line-numbers-rows"><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN></SPAN>

Thoughts on what I am doing wrong here?

Thanks

-Joe

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JoeHershman

Thanks for the update, just so you are aware, I am just using the map template provided by the ArcGIS Solutions Deployment Tool | ArcGIS Solutions . With the new information and up coming changes perhaps changes could be made to the solution template in order to have the map configured as expected.

Thanks

-Joe

JenniferNery

Thank you, Joe for the valuable information you sent us. The issue appears to be the definition expression that is on some of the layers. These expressions are loaded from the webmap, and are filtering out the results returned from GetFeaturesForElementsAsync(). We’ve logged an issue to ignore the expression during this function call.

It looks like the definition expressions are being used to create multiple layers, one for each AssetGroup. If you have Pro 2.6 and Enterprise 10.8.1, you can create a map in Pro that contains subtype group layers and publish it to a webmap. This webmap can be consumed using Runtime 100.9, which just shipped today.

We suggest using a single SubtypeGroupLayer instead for each server endpoint (i.e. Gas Device/Line/Junction) when you publish your webmap using ArcGIS Pro. This will improve performance, and eliminate the need for using the definition expression. The Runtime equivalent of this layer is SubtypeFeatureLayer. Since it is a sub-class of FeatureLayer, there’s minimal to no change in code necessary. If you are identifying features from this layer, the result will be in SublayerResults.

<SPAN class="keyword token">var</SPAN> feature <SPAN class="operator token">=</SPAN> result<SPAN class="punctuation token">.</SPAN><SPAN class="token function">FirstOrDefault</SPAN><SPAN class="punctuation token">(</SPAN>r <SPAN class="operator token">=</SPAN><SPAN class="operator token">></SPAN> r<SPAN class="punctuation token">.</SPAN>SublayerResults<SPAN class="punctuation token">.</SPAN><SPAN class="token function">Any</SPAN><SPAN class="punctuation token">(</SPAN>sr <SPAN class="operator token">=</SPAN><SPAN class="operator token">></SPAN> sr<SPAN class="punctuation token">.</SPAN>GeoElements<SPAN class="punctuation token">.</SPAN><SPAN class="token function">Any</SPAN><SPAN class="punctuation token">(</SPAN>g <SPAN class="operator token">=</SPAN><SPAN class="operator token">></SPAN> g <SPAN class="keyword token">is</SPAN> ArcGISFeature<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">)</SPAN>
<SPAN class="operator token">?</SPAN><SPAN class="punctuation token">.</SPAN>SublayerResults<SPAN class="operator token">?</SPAN><SPAN class="punctuation token">.</SPAN><SPAN class="token function">FirstOrDefault</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="operator token">?</SPAN><SPAN class="punctuation token">.</SPAN>GeoElements<SPAN class="operator token">?</SPAN><SPAN class="punctuation token">.</SPAN><SPAN class="token function">FirstOrDefault</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN> <SPAN class="keyword token">as</SPAN> ArcGISFeature<SPAN class="punctuation token">;</SPAN><SPAN class="line-numbers-rows"><SPAN>‍</SPAN><SPAN>‍</SPAN></SPAN>

JoeHershman

Rich,

I tried to do with Fiddler both from my machine using an iOS simulator and the approach to capture incoming traffic. Not able to get around ssl/cert issues. We are setup on AWS using a certificate through AWS and they operate in a kind of bizarre manner compared to how one normally sets up certificates (imo), and cannot see how to work around it.

-Joe

RichRuh

Hi Joe!

Hope you and your family are doing well.

We've had a couple of developers looking at this, and cannot find a way to reproduce it. Is there a chance you can use Fiddler, and send us the input/output from the calls to GetFeaturesForElementsAsync for the two different calls to CreateAsync()? Obviously, if your .NET app runs on Windows as well as the iPad this is straightforward. Otherwise you might need to follow these directions here. It's probably easiest to just e-mail the Fiddler files to rruh@esri.com.

If this isn't something you can easily do, let me know and we'll see if we can find another approach.

Thanks,

--Rich

JoeHershman

If you look at my code, I have already filtered the elements by FeatureTable,

<SPAN class="keyword token">var</SPAN> elements <SPAN class="operator token">=</SPAN> traceResult<SPAN class="punctuation token">.</SPAN>Elements<SPAN class="punctuation token">.</SPAN><SPAN class="token function">Where</SPAN><SPAN class="punctuation token">(</SPAN>e <SPAN class="operator token">=</SPAN><SPAN class="operator token">></SPAN> e<SPAN class="punctuation token">.</SPAN>NetworkSource<SPAN class="punctuation token">.</SPAN>Name <SPAN class="operator token">==</SPAN> featureLayer<SPAN class="punctuation token">.</SPAN>FeatureTable<SPAN class="punctuation token">.</SPAN>TableName<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">.</SPAN><SPAN class="token function">ToList</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN><SPAN class="line-numbers-rows"><SPAN>‍</SPAN></SPAN>

The total number of elements returned in the trace results is far greater. After running the trace using

<SPAN class="keyword token">var</SPAN> traceResults <SPAN class="operator token">=</SPAN> <SPAN class="keyword token">await</SPAN> _utilityNetwork<SPAN class="punctuation token">.</SPAN><SPAN class="token function">TraceAsync</SPAN><SPAN class="punctuation token">(</SPAN>parameters<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN><SPAN class="line-numbers-rows"><SPAN>‍</SPAN></SPAN>

I get 11624 elements whether I use the map to Create the UtilityNetwork or use credentials to Create the UtilityNetwork

But I am getting completely different results from GetFeaturesForElementsAsync based on how I initialize the UtilityNetwork. I have tested using the exact same start location of the FindConnected trace. Using the map, I do not get the complete result set as Features, using Credentials I do.

JenniferNery

I think I have a reproducer now. However, the difference in numbers is not as big as yours and does not change if I create UtilityNetwork with or without a map.

Electric Distribution Line Unique Elements `4052` vs Features From Elements `4066` (more features than elements)
Electric Distribution Junction Unique Elements `3334` vs Features From Elements `3334`
Electric Distribution Device Unique Elements `5045` vs Features From Elements `5425` (more features than elements)

<SPAN class="keyword token">var</SPAN> FeatureServerUrl <SPAN class="operator token">=</SPAN> <SPAN class="string token">"https://sampleserver7.arcgisonline.com/arcgis/rest/services/UtilityNetwork/NapervilleElectric/FeatureServer"</SPAN><SPAN class="punctuation token">;</SPAN>

<SPAN class="keyword token">var</SPAN> map <SPAN class="operator token">=</SPAN> <SPAN class="keyword token">new</SPAN> <SPAN class="token class-name">Map</SPAN><SPAN class="punctuation token">(</SPAN>Basemap<SPAN class="punctuation token">.</SPAN><SPAN class="token function">CreateDarkGrayCanvasVector</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
map<SPAN class="punctuation token">.</SPAN>InitialViewpoint <SPAN class="operator token">=</SPAN> <SPAN class="keyword token">new</SPAN> <SPAN class="token class-name">Viewpoint</SPAN><SPAN class="punctuation token">(</SPAN>InitialExtent<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
map<SPAN class="punctuation token">.</SPAN>OperationalLayers<SPAN class="punctuation token">.</SPAN><SPAN class="token function">Add</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="keyword token">new</SPAN> <SPAN class="token class-name">FeatureLayer</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="keyword token">new</SPAN> <SPAN class="token class-name">Uri</SPAN><SPAN class="punctuation token">(</SPAN>$<SPAN class="string token">"{FeatureServiceUrl}/115"</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
map<SPAN class="punctuation token">.</SPAN>OperationalLayers<SPAN class="punctuation token">.</SPAN><SPAN class="token function">Add</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="keyword token">new</SPAN> <SPAN class="token class-name">FeatureLayer</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="keyword token">new</SPAN> <SPAN class="token class-name">Uri</SPAN><SPAN class="punctuation token">(</SPAN>$<SPAN class="string token">"{FeatureServiceUrl}/110"</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
map<SPAN class="punctuation token">.</SPAN>OperationalLayers<SPAN class="punctuation token">.</SPAN><SPAN class="token function">Add</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="keyword token">new</SPAN> <SPAN class="token class-name">FeatureLayer</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="keyword token">new</SPAN> <SPAN class="token class-name">Uri</SPAN><SPAN class="punctuation token">(</SPAN>$<SPAN class="string token">"{FeatureServiceUrl}/100"</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
<SPAN class="keyword token">await</SPAN> map<SPAN class="punctuation token">.</SPAN><SPAN class="token function">LoadAsync</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>

_un <SPAN class="operator token">=</SPAN> <SPAN class="keyword token">await</SPAN> UtilityNetwork<SPAN class="punctuation token">.</SPAN><SPAN class="token function">CreateAsync</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="keyword token">new</SPAN> <SPAN class="token class-name">Uri</SPAN><SPAN class="punctuation token">(</SPAN>FeatureServiceUrl<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">,</SPAN> map<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>

<SPAN class="keyword token">var</SPAN> networkSource <SPAN class="operator token">=</SPAN> _un<SPAN class="punctuation token">.</SPAN>Definition<SPAN class="punctuation token">.</SPAN><SPAN class="token function">GetNetworkSource</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="string token">"Electric Distribution Device"</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
<SPAN class="keyword token">var</SPAN> assetGroup <SPAN class="operator token">=</SPAN> networkSource<SPAN class="operator token">?</SPAN><SPAN class="punctuation token">.</SPAN><SPAN class="token function">GetAssetGroup</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="string token">"Circuit Breaker"</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
<SPAN class="keyword token">var</SPAN> assetType <SPAN class="operator token">=</SPAN> assetGroup<SPAN class="operator token">?</SPAN><SPAN class="punctuation token">.</SPAN><SPAN class="token function">GetAssetType</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="string token">"Three Phase"</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
<SPAN class="keyword token">var</SPAN> terminal <SPAN class="operator token">=</SPAN> assetType<SPAN class="operator token">?</SPAN><SPAN class="punctuation token">.</SPAN>TerminalConfiguration<SPAN class="operator token">?</SPAN><SPAN class="punctuation token">.</SPAN>Terminals<SPAN class="operator token">?</SPAN><SPAN class="punctuation token">.</SPAN><SPAN class="token function">FirstOrDefault</SPAN><SPAN class="punctuation token">(</SPAN>t <SPAN class="operator token">=</SPAN><SPAN class="operator token">></SPAN> t<SPAN class="punctuation token">.</SPAN>Name <SPAN class="operator token">==</SPAN> <SPAN class="string token">"Source"</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
<SPAN class="keyword token">var</SPAN> globalId <SPAN class="operator token">=</SPAN> Guid<SPAN class="punctuation token">.</SPAN><SPAN class="token function">Parse</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="string token">"{B8493B23-B40B-4E3E-8C4B-0DD83C28D2CC}"</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
<SPAN class="keyword token">var</SPAN> element <SPAN class="operator token">=</SPAN> _un<SPAN class="punctuation token">.</SPAN><SPAN class="token function">CreateElement</SPAN><SPAN class="punctuation token">(</SPAN>assetType<SPAN class="punctuation token">,</SPAN> globalId<SPAN class="punctuation token">,</SPAN> terminal<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>

<SPAN class="keyword token">var</SPAN> parameters <SPAN class="operator token">=</SPAN> <SPAN class="keyword token">new</SPAN> <SPAN class="token class-name">UtilityTraceParameters</SPAN><SPAN class="punctuation token">(</SPAN>UtilityTraceType<SPAN class="punctuation token">.</SPAN>Connected<SPAN class="punctuation token">,</SPAN> <SPAN class="keyword token">new</SPAN><SPAN class="punctuation token">[</SPAN><SPAN class="punctuation token">]</SPAN> <SPAN class="punctuation token">{</SPAN> element <SPAN class="punctuation token">}</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>

<SPAN class="keyword token">var</SPAN> result <SPAN class="operator token">=</SPAN> <SPAN class="keyword token">await</SPAN> _un<SPAN class="punctuation token">.</SPAN><SPAN class="token function">TraceAsync</SPAN><SPAN class="punctuation token">(</SPAN>parameters<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>

<SPAN class="keyword token">if</SPAN> <SPAN class="punctuation token">(</SPAN>result<SPAN class="punctuation token">.</SPAN><SPAN class="token function">FirstOrDefault</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN> <SPAN class="keyword token">is</SPAN> UtilityElementTraceResult elementResult<SPAN class="punctuation token">)</SPAN>
<SPAN class="punctuation token">{</SPAN>
    <SPAN class="keyword token">if</SPAN> <SPAN class="punctuation token">(</SPAN>elementResult<SPAN class="punctuation token">.</SPAN>Warnings<SPAN class="punctuation token">.</SPAN>Count <SPAN class="operator token">></SPAN> <SPAN class="number token">0</SPAN><SPAN class="punctuation token">)</SPAN>
        MessageBox<SPAN class="punctuation token">.</SPAN><SPAN class="token function">Show</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="keyword token">string</SPAN><SPAN class="punctuation token">.</SPAN><SPAN class="token function">Join</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="string token">"\n"</SPAN><SPAN class="punctuation token">,</SPAN> elementResult<SPAN class="punctuation token">.</SPAN>Warnings<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">,</SPAN> <SPAN class="string token">"Trace Result Warnings"</SPAN><SPAN class="punctuation token">,</SPAN> MessageBoxButton<SPAN class="punctuation token">.</SPAN>OK<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>

    <SPAN class="keyword token">foreach</SPAN> <SPAN class="punctuation token">(</SPAN><SPAN class="keyword token">var</SPAN> layer <SPAN class="keyword token">in</SPAN> MyMapView<SPAN class="punctuation token">.</SPAN>Map<SPAN class="punctuation token">.</SPAN>OperationalLayers<SPAN class="punctuation token">.</SPAN>OfType<SPAN class="operator token"><</SPAN>FeatureLayer<SPAN class="operator token">></SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">)</SPAN>
    <SPAN class="punctuation token">{</SPAN>
        <SPAN class="keyword token">var</SPAN> elements <SPAN class="operator token">=</SPAN> elementResult<SPAN class="punctuation token">.</SPAN>Elements<SPAN class="punctuation token">.</SPAN><SPAN class="token function">Where</SPAN><SPAN class="punctuation token">(</SPAN>el <SPAN class="operator token">=</SPAN><SPAN class="operator token">></SPAN> el<SPAN class="punctuation token">.</SPAN>NetworkSource<SPAN class="punctuation token">.</SPAN>FeatureTable <SPAN class="operator token">==</SPAN> layer<SPAN class="punctuation token">.</SPAN>FeatureTable<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
        <SPAN class="keyword token">var</SPAN> features <SPAN class="operator token">=</SPAN> <SPAN class="keyword token">await</SPAN> _un<SPAN class="punctuation token">.</SPAN><SPAN class="token function">GetFeaturesForElementsAsync</SPAN><SPAN class="punctuation token">(</SPAN>elements<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
        <SPAN class="keyword token">var</SPAN> distinctIds <SPAN class="operator token">=</SPAN> <SPAN class="punctuation token">(</SPAN><SPAN class="keyword token">from</SPAN> f <SPAN class="keyword token">in</SPAN> elements <SPAN class="keyword token">select</SPAN> f<SPAN class="punctuation token">.</SPAN>ObjectId<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">.</SPAN><SPAN class="token function">Distinct</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
        System<SPAN class="punctuation token">.</SPAN>Diagnostics<SPAN class="punctuation token">.</SPAN>Debug<SPAN class="punctuation token">.</SPAN><SPAN class="token function">WriteLine</SPAN><SPAN class="punctuation token">(</SPAN>$<SPAN class="string token">"{layer.FeatureTable.DisplayName}\t:\t Unique Elements `{distinctIds.Count()}` vs Features From Elements `{features.Count()}`"</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
        layer<SPAN class="punctuation token">.</SPAN><SPAN class="token function">SelectFeatures</SPAN><SPAN class="punctuation token">(</SPAN>features<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
    <SPAN class="punctuation token">}</SPAN>
<SPAN class="punctuation token">}</SPAN>‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍<SPAN class="line-numbers-rows"><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN></SPAN>

In your case, could there be layers that did not load or required credential? You can add the following to troubleshoot.

<SPAN class="comment token">// Check if any layer failed</SPAN>
MyMapView<SPAN class="punctuation token">.</SPAN>LayerViewStateChanged <SPAN class="operator token">+</SPAN><SPAN class="operator token">=</SPAN> <SPAN class="punctuation token">(</SPAN>s<SPAN class="punctuation token">,</SPAN> e<SPAN class="punctuation token">)</SPAN> <SPAN class="operator token">=</SPAN><SPAN class="operator token">></SPAN>
  <SPAN class="punctuation token">{</SPAN>
      <SPAN class="keyword token">var</SPAN> error <SPAN class="operator token">=</SPAN> e<SPAN class="punctuation token">.</SPAN>LayerViewState<SPAN class="punctuation token">.</SPAN>Error <SPAN class="operator token">?</SPAN><SPAN class="operator token">?</SPAN> e<SPAN class="punctuation token">.</SPAN>Layer<SPAN class="punctuation token">.</SPAN>LoadError<SPAN class="punctuation token">;</SPAN>
      <SPAN class="keyword token">if</SPAN> <SPAN class="punctuation token">(</SPAN>error <SPAN class="operator token">!=</SPAN> <SPAN class="keyword token">null</SPAN><SPAN class="punctuation token">)</SPAN>
          System<SPAN class="punctuation token">.</SPAN>Diagnostics<SPAN class="punctuation token">.</SPAN>Debug<SPAN class="punctuation token">.</SPAN><SPAN class="token function">WriteLine</SPAN><SPAN class="punctuation token">(</SPAN>$<SPAN class="string token">"{e.Layer.Name} had an error {error.Message}"</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
  <SPAN class="punctuation token">}</SPAN><SPAN class="punctuation token">;</SPAN>

<SPAN class="comment token">// Check if any layer required credential</SPAN>
AuthenticationManager<SPAN class="punctuation token">.</SPAN>Current<SPAN class="punctuation token">.</SPAN>ChallengeHandler <SPAN class="operator token">=</SPAN> <SPAN class="keyword token">new</SPAN> <SPAN class="token class-name">ChallengeHandler</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="keyword token">async</SPAN><SPAN class="punctuation token">(</SPAN>info<SPAN class="punctuation token">)</SPAN> <SPAN class="operator token">=</SPAN><SPAN class="operator token">></SPAN>
<SPAN class="punctuation token">{</SPAN>
    <SPAN class="keyword token">return</SPAN> <SPAN class="keyword token">await</SPAN> AuthenticationManager<SPAN class="punctuation token">.</SPAN>Current<SPAN class="punctuation token">.</SPAN><SPAN class="token function">GenerateCredentialAsync</SPAN><SPAN class="punctuation token">(</SPAN>info<SPAN class="punctuation token">.</SPAN>ServiceUri<SPAN class="punctuation token">,</SPAN> <SPAN class="string token">"<username>"</SPAN><SPAN class="punctuation token">,</SPAN> <SPAN class="string token">"<password>"</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
<SPAN class="punctuation token">}</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍<SPAN class="line-numbers-rows"><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN></SPAN>

JenniferNery

The 5856 elements may not be distinct and may also be belonging to other layers.

Do you do something like this?

<SPAN class="keyword token">var</SPAN> result <SPAN class="operator token">=</SPAN> <SPAN class="keyword token">await</SPAN> _un<SPAN class="punctuation token">.</SPAN><SPAN class="token function">TraceAsync</SPAN><SPAN class="punctuation token">(</SPAN>_parameters<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
<SPAN class="keyword token">if</SPAN> <SPAN class="punctuation token">(</SPAN>result<SPAN class="punctuation token">.</SPAN><SPAN class="token function">FirstOrDefault</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN> <SPAN class="keyword token">is</SPAN> UtilityElementTraceResult elementResult<SPAN class="punctuation token">)</SPAN>
<SPAN class="punctuation token">{</SPAN>
    <SPAN class="keyword token">if</SPAN> <SPAN class="punctuation token">(</SPAN>elementResult<SPAN class="punctuation token">.</SPAN>Warnings<SPAN class="punctuation token">.</SPAN>Count <SPAN class="operator token">></SPAN> <SPAN class="number token">0</SPAN><SPAN class="punctuation token">)</SPAN>
        MessageBox<SPAN class="punctuation token">.</SPAN><SPAN class="token function">Show</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="keyword token">string</SPAN><SPAN class="punctuation token">.</SPAN><SPAN class="token function">Join</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="string token">"\n"</SPAN><SPAN class="punctuation token">,</SPAN> elementResult<SPAN class="punctuation token">.</SPAN>Warnings<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">,</SPAN> <SPAN class="string token">"Trace Result Warnings"</SPAN><SPAN class="punctuation token">,</SPAN> MessageBoxButton<SPAN class="punctuation token">.</SPAN>OK<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>

    <SPAN class="keyword token">foreach</SPAN> <SPAN class="punctuation token">(</SPAN><SPAN class="keyword token">var</SPAN> layer <SPAN class="keyword token">in</SPAN> MyMapView<SPAN class="punctuation token">.</SPAN>Map<SPAN class="punctuation token">.</SPAN>OperationalLayers<SPAN class="punctuation token">.</SPAN>OfType<SPAN class="operator token"><</SPAN>FeatureLayer<SPAN class="operator token">></SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">)</SPAN>
    <SPAN class="punctuation token">{</SPAN>
        <SPAN class="keyword token">var</SPAN> elements <SPAN class="operator token">=</SPAN> elementResult<SPAN class="punctuation token">.</SPAN>Elements<SPAN class="punctuation token">.</SPAN><SPAN class="token function">Where</SPAN><SPAN class="punctuation token">(</SPAN>el <SPAN class="operator token">=</SPAN><SPAN class="operator token">></SPAN> el<SPAN class="punctuation token">.</SPAN>NetworkSource<SPAN class="punctuation token">.</SPAN>FeatureTable <SPAN class="operator token">==</SPAN> layer<SPAN class="punctuation token">.</SPAN>FeatureTable<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
        <SPAN class="keyword token">var</SPAN> features <SPAN class="operator token">=</SPAN> <SPAN class="keyword token">await</SPAN> _un<SPAN class="punctuation token">.</SPAN><SPAN class="token function">GetFeaturesForElementsAsync</SPAN><SPAN class="punctuation token">(</SPAN>elements<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
        layer<SPAN class="punctuation token">.</SPAN><SPAN class="token function">SelectFeatures</SPAN><SPAN class="punctuation token">(</SPAN>features<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
    <SPAN class="punctuation token">}</SPAN>
<SPAN class="punctuation token">}</SPAN><SPAN class="line-numbers-rows"><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN></SPAN>

I added this check and the counts seem to match.

<SPAN class="keyword token">var</SPAN> distinctIds <SPAN class="operator token">=</SPAN> <SPAN class="punctuation token">(</SPAN><SPAN class="keyword token">from</SPAN> f <SPAN class="keyword token">in</SPAN> elements <SPAN class="keyword token">select</SPAN> f<SPAN class="punctuation token">.</SPAN>ObjectId<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">.</SPAN><SPAN class="token function">Distinct</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
System<SPAN class="punctuation token">.</SPAN>Diagnostics<SPAN class="punctuation token">.</SPAN>Debug<SPAN class="punctuation token">.</SPAN><SPAN class="token function">WriteLine</SPAN><SPAN class="punctuation token">(</SPAN>$<SPAN class="string token">"Unique Elements `{distinctIds.Count()}` vs Features From Elements `{features.Count()}`"</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN><SPAN class="line-numbers-rows"><SPAN>‍</SPAN><SPAN>‍</SPAN></SPAN>

JoeHershman

Using 100.8

Invalid results as I described, it returns 14 features when there are 5856 elements. The WebMap I use has Pipes, Junctions, and Devices. So all the main FeatureTables are represented.

The idea of manually building out the map seems a poor workflow. How would I manage layer order, visibility, etc. Would be tough to make anything more the a very simple map using that approach.

Something else I notice, it is terribly slow to open the WebMap. It takes about 20 seconds for the original drawing of the map. And we are zoomed at a level where only distribution pipes are visible

Startup view:

JenniferNery

What version of ArcGIS Runtime SDK for .NET are you using? I believe we fixed a bug in 100.6 which is as you describe GetFeaturesForElementsAsync does not return all features.

A workaround for that release is to select or query by object id

<SPAN class="keyword token">var</SPAN> query <SPAN class="operator token">=</SPAN> <SPAN class="keyword token">new</SPAN> <SPAN class="token class-name">QueryParameters</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
<SPAN class="keyword token">foreach</SPAN> <SPAN class="punctuation token">(</SPAN><SPAN class="keyword token">var</SPAN> id <SPAN class="keyword token">in</SPAN> <SPAN class="punctuation token">(</SPAN><SPAN class="keyword token">from</SPAN> f <SPAN class="keyword token">in</SPAN> elementGroup <SPAN class="keyword token">select</SPAN> f<SPAN class="punctuation token">.</SPAN>ObjectId<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">.</SPAN><SPAN class="token function">Distinct</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">)</SPAN>
     query<SPAN class="punctuation token">.</SPAN>ObjectIds<SPAN class="punctuation token">.</SPAN><SPAN class="token function">Add</SPAN><SPAN class="punctuation token">(</SPAN>id<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
layer<SPAN class="punctuation token">.</SPAN><SPAN class="token function">SelectFeaturesAsync</SPAN><SPAN class="punctuation token">(</SPAN>query<SPAN class="punctuation token">,</SPAN> SelectionMode<SPAN class="punctuation token">.</SPAN>New<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN><SPAN class="line-numbers-rows"><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN></SPAN>

Can you clarify what invalid results you get?

when I create it using UtilityNetwork.CreateAsync Method (Uri, Map) method I am getting the invalid results.

If UtilityNetwork was created with a map, the UtilityNetwork.Definition.NetworkSources which have a FeatureTable property will be the same instances in your map.

If you created UtilityNetwork first and you wanted to build your map from it, you can also do

<SPAN class="keyword token">foreach</SPAN> <SPAN class="punctuation token">(</SPAN><SPAN class="keyword token">var</SPAN> ns <SPAN class="keyword token">in</SPAN> _un<SPAN class="punctuation token">.</SPAN>Definition<SPAN class="punctuation token">.</SPAN>NetworkSources<SPAN class="punctuation token">)</SPAN>
<SPAN class="punctuation token">{</SPAN>
   <SPAN class="keyword token">if</SPAN> <SPAN class="punctuation token">(</SPAN>ns<SPAN class="punctuation token">.</SPAN>SourceUsageType <SPAN class="operator token">==</SPAN> UtilityNetworkSourceUsageType<SPAN class="punctuation token">.</SPAN>SubnetLine<SPAN class="punctuation token">)</SPAN>
       <SPAN class="keyword token">continue</SPAN><SPAN class="punctuation token">;</SPAN>
   map<SPAN class="punctuation token">.</SPAN>OperationalLayers<SPAN class="punctuation token">.</SPAN><SPAN class="token function">Insert</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="number token">0</SPAN><SPAN class="punctuation token">,</SPAN> <SPAN class="keyword token">new</SPAN> <SPAN class="token class-name">FeatureLayer</SPAN><SPAN class="punctuation token">(</SPAN>ns<SPAN class="punctuation token">.</SPAN>FeatureTable<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
<SPAN class="punctuation token">}</SPAN><SPAN class="line-numbers-rows"><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN></SPAN>

JoeHershman

So I have found that it would seem when I create a UtilityNetwork using UtilityNetwork.CreateAsync Method (Uri, Credential) I am getting correct results when using UtilityNetwork.GetFeaturesForElementsAsync Method, however, when I create it using UtilityNetwork.CreateAsync Method (Uri, Map) method I am getting the invalid results.

This does not make sense to me as the Map contains most layers, and it is the same Map I am using to view the to set the start location and view the results.

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