UniqueValueRendererDefinition Constructor(List<String>,CIMSymbolReference,CIMColorRamp,CIMSymbolReference,Boolean)

In This Topic

Creates a UniqueValueRendererDefinition.

Syntax

C#
Visual Basic (Declaration)

public UniqueValueRendererDefinition( 
   List<string> fields,
   CIMSymbolReference symbolTemplate,
   CIMColorRamp colorRamp,
   CIMSymbolReference defaultSymbol,
   bool useDefaultSymbol
)

Public Function New( _
   ByVal fields As List(Of String), _
   Optional ByVal symbolTemplate As CIMSymbolReference, _
   Optional ByVal colorRamp As CIMColorRamp, _
   Optional ByVal defaultSymbol As CIMSymbolReference, _
   Optional ByVal useDefaultSymbol As Boolean _
)

Parameters

fields: One or more fields be used to get unique values or combination of values from.
symbolTemplate: A symbol that will be used to draw features whose values are not found in values list.
colorRamp: A color ramp be used to pick color for symbols from.
defaultSymbol: A symbol that will be used to draw features whose values are not found in values list.
useDefaultSymbol: A boolean indicates whether the DefaultSymbol will be used to draw features whose values are not found in the values list or not.

Example

Set unique value renderer to the selected feature layer of the active map

await QueuedTask.Run(() =>
{
  var fields = new List<string> { "Type" }; //field to be used to retrieve unique values
  CIMPointSymbol pointSym = SymbolFactory.Instance.ConstructPointSymbol(
            ColorFactory.Instance.GreenRGB, 16.0, SimpleMarkerStyle.Pushpin);  //constructing a point symbol as a template symbol
  CIMSymbolReference symbolPointTemplate = pointSym.MakeSymbolReference();

  //constructing renderer definition for unique value renderer
  UniqueValueRendererDefinition uniqueValueRendererDef =
      new UniqueValueRendererDefinition(fields, symbolPointTemplate);

  //creating a unique value renderer
  var flyr = MapView.Active.GetSelectedLayers()[0] as FeatureLayer;
  CIMUniqueValueRenderer uniqueValueRenderer = flyr.CreateRenderer(uniqueValueRendererDef) as CIMUniqueValueRenderer;

  //setting the renderer to the feature layer
  flyr.SetRenderer(uniqueValueRenderer);
});

Requirements

Target Platforms: Windows 11, Windows 10, Windows 8.1

Reference

UniqueValueRendererDefinition Class
UniqueValueRendererDefinition Members
Overload List

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