networkSource property
Filter the utility network associations by network source of the associated feature.
If the UtilityAssociationsFilter is part of an UtilityAssociationsPopupElement or an UtilityAssociationsFormElement and the associations are filtered by UtilityNetworkSource, this property is populated when the UtilityNetwork is loaded. The Popup.evaluateExpressions and FeatureForm.evaluateExpressionsAsync() methods will load the UtilityNetwork.