symbology is not used for linear features of FeatureLayer

[Pierre-JeanMuller]

as you see on the picture, linear features are not symbolised, if I use a dynamic map, I get the symbols. 
the FeatureLayer shows the symbols of the points but the symbols of linear features.

[RobertScheitlin__GISP]

Pierre-Jean,

   Are you using an advanced cartographic line symbol in your map services mxd? 

Or are you saying that you DO get the line symbology to show when using ArcGISDynamicMapServiceLayer but when you use FeatureLayer you do not?

[Pierre-JeanMuller]

no advance cartographique line, it is just a standard arrow. Yes I get the good symbology if I use ArcGISDynamicMapServiceLayer. But I need to use the featureLayer.

[RobertScheitlin__GISP]

Pierre-Jean,

   When you use FeatureLayer you will have to specify the symbology for the layer in your code. When using ArcGISDynamicMapServiceLayer the layer is drawn on the server and it uses the symbology specified in the mxd.

[Pierre-JeanMuller]

I used featureLayer for the points and the surface, it always get the symbols. We find the problem only for the linear feature.

[RobertScheitlin__GISP]

Pierre-Jean,

   I do not have a problem with my line geometry types using the ArcGIS Server symbology when using FeatureLayer. But if you are for some reason, then as I suggested in my previous post you will need to define the renderer for that layer in your code.