Latest Contributions by NikholaiO_Hara

Yeah, you will need to code it differently since your signal handlers are all triggering each other in an endless loop. There are probably many ways to do it. For example, do you need to apply edits right after you add the feature? Could you select features from within your addFeatures signal handler, then when feature is selected, add attachments and apply edits (in this case, applyEdits signal handler wouldn't retrigger a selection). You could also add some type of bool or state to indicate what part of the workflow the user is in, and take different code paths depending on that. ... View more

Hi Nikholai, To group the values using the API, you can do this. 1. Create your Unique Value renderer the way you have been doing. 2. To add "grouping" you have to work with the CIM (Cartographic Information Model).     * Get the Layer's definition as CIMFeatureLayer.    * Access the Renderer from the definition.    * Modify the "Groups" property on the Renderer. Below is the code snippet I used on a layer. It had two fields that I symbolized on. I then grouped the features with the "Rock" attributes. //Get the Layer's CIM Defintion var lyrDefn = featureLayer . GetDefinition ( ) as CIMFeatureLayer ; //Access the renderer var renderer = lyrDefn . Renderer as CIMUniqueValueRenderer ; var symbol1 = SymbolFactory . Instance . ConstructPointSymbol ( ColorFactory . Instance . RedRGB ) ; var symbol2 = SymbolFactory . Instance . ConstructPointSymbol ( ColorFactory . Instance . GreenRGB ) ; //Create the info needed for the Grouping var groupRiverValues = new List < CIMUniqueValue > { new CIMUniqueValue { FieldValues = new string [ ] { "River" , "5" } } } ; var groupRockValues = new List < CIMUniqueValue > { new CIMUniqueValue { FieldValues = new string [ ] { "Rock" , "2" } } , new CIMUniqueValue { FieldValues = new string [ ] { "Rock" , "3" } } , } ; //This is the part where you create the grouping classes var uniqueValueClasses = new List < CIMUniqueValueClass > { new CIMUniqueValueClass { Symbol = symbol1 . MakeSymbolReference ( ) , Editable = false , Patch = PatchShape . Default , Label = "River,5" , Values = groupRiverValues . ToArray ( ) , Visible = true } , new CIMUniqueValueClass ( ) { Symbol = symbol2 . MakeSymbolReference ( ) , Editable = true , Patch = PatchShape . Default , Label = "Rock,3; Rock,4" , Values = groupRockValues . ToArray ( ) , Visible = true } } ; //Create the "Groups" var groups = new List < CIMUniqueValueGroup > { new CIMUniqueValueGroup { Classes = uniqueValueClasses . ToArray ( ) , Heading = "DisplayField,SubDisplay" } } ; //Set the Groups property on the renderer object renderer . Groups = groups . ToArray ( ) ; //Important: Set the modified layer definition back featureLayer . SetDefinition ( lyrDefn ) ; ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ Let me know if you run into issues. Thanks Uma ... View more