Selected symbol not changing color

KarstenRank

Hi there,

I want to change the selected symbols depending on the geometry of the feature layer. My code looks like that:

<SPAN class="keyword token">switch</SPAN> <SPAN class="punctuation token">(</SPAN>geoType<SPAN class="punctuation token">)</SPAN> <SPAN class="punctuation token">{</SPAN>
 <SPAN class="keyword token">case</SPAN> <SPAN class="string token">"esriGeometryPoint"</SPAN><SPAN class="punctuation token">:</SPAN>
 selectionSymbol <SPAN class="operator token">=</SPAN> <SPAN class="keyword token">new</SPAN> <SPAN class="token class-name">SimpleMarkerSymbol</SPAN><SPAN class="punctuation token">(</SPAN>SimpleMarkerSymbol<SPAN class="punctuation token">.</SPAN>STYLE_CIRCLE<SPAN class="punctuation token">,</SPAN> <SPAN class="number token">20</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
 <SPAN class="keyword token">break</SPAN><SPAN class="punctuation token">;</SPAN>
 
 <SPAN class="keyword token">case</SPAN> <SPAN class="string token">"esriGeometryPolygon"</SPAN><SPAN class="punctuation token">:</SPAN>
layer<SPAN class="punctuation token">.</SPAN>selectionSymbol <SPAN class="operator token">=</SPAN> <SPAN class="keyword token">new</SPAN> <SPAN class="token class-name">SimpleFillSymbol</SPAN><SPAN class="punctuation token">(</SPAN>SimpleFillSymbol<SPAN class="punctuation token">.</SPAN>STYLE_SOLID<SPAN class="punctuation token">,</SPAN>
 <SPAN class="keyword token">new</SPAN> <SPAN class="token class-name">SimpleLineSymbol</SPAN><SPAN class="punctuation token">(</SPAN>SimpleLineSymbol<SPAN class="punctuation token">.</SPAN>STYLE_DASHDOT<SPAN class="punctuation token">,</SPAN>
 <SPAN class="keyword token">new</SPAN> <SPAN class="token class-name">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">120</SPAN><SPAN class="punctuation token">,</SPAN> <SPAN class="number token">0</SPAN><SPAN class="punctuation token">]</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">,</SPAN> <SPAN class="number token">2</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">,</SPAN> <SPAN class="keyword token">new</SPAN> <SPAN class="token class-name">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">0</SPAN><SPAN class="punctuation token">,</SPAN> <SPAN class="number token">0.5</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">break</SPAN><SPAN class="punctuation token">;</SPAN>
 
 <SPAN class="keyword token">case</SPAN> <SPAN class="string token">"esriGeometryPolyline"</SPAN><SPAN class="punctuation token">:</SPAN>
layer<SPAN class="punctuation token">.</SPAN>selectionSymbol <SPAN class="operator token">=</SPAN> <SPAN class="keyword token">new</SPAN> <SPAN class="token class-name">CartographicLineSymbol</SPAN><SPAN class="punctuation token">(</SPAN>CartographicLineSymbol<SPAN class="punctuation token">.</SPAN>STYLE_SOLID<SPAN class="punctuation token">,</SPAN> <SPAN class="keyword token">new</SPAN> <SPAN class="token class-name">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">255</SPAN><SPAN class="punctuation token">,</SPAN><SPAN class="number token">1</SPAN><SPAN class="punctuation token">]</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">,</SPAN> <SPAN class="number token">2</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
 
 <SPAN class="punctuation token">}</SPAN>

layer<SPAN class="punctuation token">.</SPAN><SPAN class="token function">setSelectionSymbol</SPAN><SPAN class="punctuation token">(</SPAN>selectionSymbol<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>

The marker symbol for point geometry changes, the others get transparent?

Where is the error?

Thank you 

Karsten

kenbuja

For the point case, you use

selectionSymbol <SPAN class="operator token">=</SPAN> <SPAN class="keyword token">new</SPAN> <SPAN class="token class-name"><SPAN class="punctuation token">.</SPAN><SPAN class="punctuation token">.</SPAN><SPAN class="punctuation token">.</SPAN></SPAN>‍‍

but the polyline and polygon cases, you use

layer<SPAN class="punctuation token">.</SPAN>selectionSymbol <SPAN class="operator token">=</SPAN> <SPAN class="keyword token">new</SPAN> ‍<SPAN class="line-numbers-rows"><SPAN>‍</SPAN></SPAN>

You have to use

selectionSymbol <SPAN class="operator token">=</SPAN> <SPAN class="keyword token">new</SPAN>‍<SPAN class="line-numbers-rows"><SPAN>‍</SPAN></SPAN>

for these cases since "layer.selectionSymbol" is not the same as "selectionSymbol". Otherwise, you're creating a new property on the "layer" variable instead of setting a new value for the "selectionSymbol" variable. Since "selectionSymbol" is not being set in those two cases, a null value will be set in the setSelectionSymbol method at the end of your code fragment.