How to get SimpleRenderer.ToJson to include Symbol?

Anonymous User

With a featurelayer created from this:

https://services2.arcgis.com/ZQgQTuoyBrtmoGdP/arcgis/rest/services/Redlands_Restaurants/FeatureServer/0 

featureLayer.Renderer.ToJson() returns json that lacks the symbol:

<SPAN class="punctuation token">{</SPAN>
 <SPAN class="string token">"symbol"</SPAN><SPAN class="punctuation token">:</SPAN> <SPAN class="punctuation token">{</SPAN><SPAN class="punctuation token">}</SPAN><SPAN class="punctuation token">,</SPAN>
 <SPAN class="string token">"type"</SPAN><SPAN class="punctuation token">:</SPAN> <SPAN class="string token">"simple"</SPAN>
<SPAN class="punctuation token">}</SPAN>‍‍‍‍<SPAN class="line-numbers-rows"><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN></SPAN>

But ((SimpleRenderer)featureLayer.Renderer).Symbol.ToJson() returns this:

{
  "symbol": {
    "angleAlignment": "Display",
    "symbolLayers": [
      {
        "anchorPoint": {
          "x": 0,
          "y": 0
        },
        "anchorPointUnits": "Relative",
        "billboardMode3D": "FaceNearPlane",
        "dominantSizeAxis3D": "Z",
        "enable": true,
        "frame": {
          "xmax": 2,
          "xmin": -2,
          "ymax": 2,
          "ymin": -2
        },
        "markerGraphics": [
          {
            "geometry": {
              "rings": [
                [
                  [
                    0,
                    2
                  ],
                  [
                    0.35,
                    1.97
                  ],
                  [
                    0.68,
                    1.88
                  ],
                  [
                    1,
                    1.73
                  ],
                  [
                    1.29,
                    1.53
                  ],
                  [
                    1.53,
                    1.29
                  ],
                  [
                    1.73,
                    1
                  ],
                  [
                    1.88,
                    0.68
                  ],
                  [
                    1.97,
                    0.35
                  ],
                  [
                    2,
                    0
                  ],
                  [
                    1.97,
                    -0.35
                  ],
                  [
                    1.88,
                    -0.68
                  ],
                  [
                    1.73,
                    -1
                  ],
                  [
                    1.53,
                    -1.29
                  ],
                  [
                    1.29,
                    -1.53
                  ],
                  [
                    1,
                    -1.73
                  ],
                  [
                    0.68,
                    -1.88
                  ],
                  [
                    0.35,
                    -1.97
                  ],
                  [
                    0,
                    -2
                  ],
                  [
                    -0.35,
                    -1.97
                  ],
                  [
                    -0.68,
                    -1.88
                  ],
                  [
                    -1,
                    -1.73
                  ],
                  [
                    -1.29,
                    -1.53
                  ],
                  [
                    -1.53,
                    -1.29
                  ],
                  [
                    -1.73,
                    -1
                  ],
                  [
                    -1.88,
                    -0.68
                  ],
                  [
                    -1.97,
                    -0.35
                  ],
                  [
                    -2,
                    0
                  ],
                  [
                    -1.97,
                    0.35
                  ],
                  [
                    -1.88,
                    0.68
                  ],
                  [
                    -1.73,
                    1
                  ],
                  [
                    -1.53,
                    1.29
                  ],
                  [
                    -1.29,
                    1.53
                  ],
                  [
                    -1,
                    1.73
                  ],
                  [
                    -0.68,
                    1.88
                  ],
                  [
                    -0.35,
                    1.97
                  ],
                  [
                    0,
                    2
                  ]
                ]
              ]
            },
            "symbol": {
              "symbolLayers": [
                {
                  "capStyle": "Round",
                  "color": [
                    0,
                    0,
                    0,
                    255
                  ],
                  "enable": true,
                  "joinStyle": "Round",
                  "lineStyle3D": "Strip",
                  "miterLimit": 10,
                  "type": "CIMSolidStroke",
                  "width": 0.7
                },
                {
                  "color": [
                    0,
                    0,
                    0,
                    255
                  ],
                  "enable": true,
                  "type": "CIMSolidFill"
                }
              ],
              "type": "CIMPolygonSymbol"
            },
            "type": "CIMMarkerGraphic"
          }
        ],
        "respectFrame": true,
        "size": 4,
        "type": "CIMVectorMarker"
      }
    ],
    "type": "CIMPointSymbol"
  },
  "type": "CIMSymbolReference"
}<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>‍</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><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>‍</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><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>‍</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>

PreetiMaske

If feature table has advanced symbology , it is as designed that Renderer.ToJson will return empty symbol info and ((SimpleRenderer)Renderer).Symbol.toJson() will return the json of CIM Symbol.

Since the service you had has AdvancedSymbology enabled, what you are getting is as expected.

If you to access the simple symbol as advertised in layer's metadata you can turn FeatureTable.UseAdvanceSymbology=false before loading the table.

Uri serviceUri <SPAN class="operator token">=</SPAN> <SPAN class="keyword token">new</SPAN> <SPAN class="token class-name">Uri</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="string token">"https://sampleserver6.arcgisonline.com/arcgis/rest/services/USA/MapServer/0"</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
<SPAN class="keyword token">var</SPAN> table <SPAN class="operator token">=</SPAN> <SPAN class="keyword token">new</SPAN> <SPAN class="token class-name">ServiceFeatureTable</SPAN><SPAN class="punctuation token">(</SPAN>serviceUri<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
table<SPAN class="punctuation token">.</SPAN>UseAdvancedSymbology <SPAN class="operator token">=</SPAN> <SPAN class="keyword token">false</SPAN><SPAN class="punctuation token">;</SPAN>
<SPAN class="keyword token">await</SPAN> table<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>
<SPAN class="comment token">// Create new FeatureLayer from service uri and</SPAN>
FeatureLayer fLayer <SPAN class="operator token">=</SPAN> <SPAN class="keyword token">new</SPAN> <SPAN class="token class-name">FeatureLayer</SPAN><SPAN class="punctuation token">(</SPAN>table<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
<SPAN class="keyword token">var</SPAN> str <SPAN class="operator token">=</SPAN> fLayer<SPAN class="punctuation token">.</SPAN>Renderer<SPAN class="punctuation token">.</SPAN><SPAN class="token function">ToJson</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>

NOW YOU WILL GET FOLLOWING FROM RENDERER<SPAN class="punctuation token">.</SPAN><SPAN class="token function">TOJSON</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN>
<SPAN class="punctuation token">{</SPAN><SPAN class="string token">"symbol"</SPAN><SPAN class="punctuation token">:</SPAN><SPAN class="punctuation token">{</SPAN><SPAN class="string token">"angle"</SPAN><SPAN class="punctuation token">:</SPAN><SPAN class="number token">0</SPAN><SPAN class="punctuation token">,</SPAN><SPAN class="string token">"color"</SPAN><SPAN class="punctuation token">:</SPAN><SPAN class="punctuation token">[</SPAN><SPAN class="number token">255</SPAN><SPAN class="punctuation token">,</SPAN><SPAN class="number token">255</SPAN><SPAN class="punctuation token">,</SPAN><SPAN class="number token">115</SPAN><SPAN class="punctuation token">,</SPAN><SPAN class="number token">255</SPAN><SPAN class="punctuation token">]</SPAN><SPAN class="punctuation token">,</SPAN><SPAN class="string token">"outline"</SPAN><SPAN class="punctuation token">:</SPAN><SPAN class="punctuation token">{</SPAN><SPAN class="string token">"color"</SPAN><SPAN class="punctuation token">:</SPAN><SPAN class="punctuation token">[</SPAN><SPAN class="number token">0</SPAN><SPAN class="punctuation token">,</SPAN><SPAN class="number token">0</SPAN><SPAN class="punctuation token">,</SPAN><SPAN class="number token">0</SPAN><SPAN class="punctuation token">,</SPAN><SPAN class="number token">255</SPAN><SPAN class="punctuation token">]</SPAN><SPAN class="punctuation token">,</SPAN><SPAN class="string token">"style"</SPAN><SPAN class="punctuation token">:</SPAN><SPAN class="string token">"esriSLSSolid"</SPAN><SPAN class="punctuation token">,</SPAN><SPAN class="string token">"type"</SPAN><SPAN class="punctuation token">:</SPAN><SPAN class="string token">"esriSLS"</SPAN><SPAN class="punctuation token">,</SPAN><SPAN class="string token">"width"</SPAN><SPAN class="punctuation token">:</SPAN><SPAN class="number token">1</SPAN><SPAN class="punctuation token">}</SPAN><SPAN class="punctuation token">,</SPAN><SPAN class="string token">"size"</SPAN><SPAN class="punctuation token">:</SPAN><SPAN class="number token">4</SPAN><SPAN class="punctuation token">,</SPAN><SPAN class="string token">"style"</SPAN><SPAN class="punctuation token">:</SPAN><SPAN class="string token">"esriSMSCircle"</SPAN><SPAN class="punctuation token">,</SPAN><SPAN class="string token">"type"</SPAN><SPAN class="punctuation token">:</SPAN><SPAN class="string token">"esriSMS"</SPAN><SPAN class="punctuation token">,</SPAN><SPAN class="string token">"xoffset"</SPAN><SPAN class="punctuation token">:</SPAN><SPAN class="number token">0</SPAN><SPAN class="punctuation token">,</SPAN><SPAN class="string token">"yoffset"</SPAN><SPAN class="punctuation token">:</SPAN><SPAN class="number token">0</SPAN><SPAN class="punctuation token">}</SPAN><SPAN class="punctuation token">,</SPAN><SPAN class="string token">"type"</SPAN><SPAN class="punctuation token">:</SPAN><SPAN class="string token">"simple"</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>