Query a REST layer

Question

Greetings

I have a Silverlight application with several services. One of these services is declared as ArcGISDynamicMapServiceLayer in xaml and contains 3 layers. I would like to filter features from one of these layers with ID=0 using a simple query string in C#. How should I structure the where instruction? Thanks

AgatinoLa_Rosa · Answer

Thanks Dominique

sorry I am replying this late. I have just tried your code and it works perfectly.

I appreciate your help.

DominiqueBroux · Answer

Starting from a map application template, you can just add the code in MainPage.xaml.cs. Example of code displaying the earthquakes in california since 1950 as DynamicMapServiceLayer:public MainPage() { InitializeComponent(); System.Collections.ObjectModel.ObservableCollection layerDefinitions; ArcGISDynamicMapServiceLayer myMapServiceLayer = Map.Layers["California"] as ArcGISDynamicMapServiceLayer; layerDefinitions = new System.Collections.ObjectModel.ObservableCollection(); LayerDefinition layerDefinition = new LayerDefinition(); layerDefinition.LayerID = 2; layerDefinition.Definition = "YEAR > 1950"; layerDefinitions.Add(layerDefinition); myMapServiceLayer.VisibleLayers = new int[] { 2 }; myMapServiceLayer.LayerDefinitions = layerDefinitions; } The MainPage.xaml must also be completed with the declaration of the dynamic service: Note that this example is 'XAMLable'. Yo can get the same result without any C# code by modifying the .xaml file only: /Dominique

AgatinoLa_Rosa · Answer

Could you please specify in which document I should add your code (in my Silverlight application I have used the xaml and the cs documents). Thanks