Help in filter Where: FindParameters Class & LayerDefinitions

YgorThomaz

Hello guys,

I am creating a FindTask and must use the class and property FindParameters LayerDefinitions (get; set;): IEnumerable <LayerDefinition>. Can anyone send an example of "Where (filter)" using LayerDefinitions?

Part of code bellow :

        private void ExecuteButton_Click(object sender, RoutedEventArgs e)
        {
            GraphicsLayer graphicsLayer = Mapa.Layers["MyGraphicsLayer"] as GraphicsLayer;
            graphicsLayer.ClearGraphics();

            FindTask findTask = new FindTask("http://192.168.5.../MapServer");

            ....

            findParameters.LayerDefinitions = ???;

            findParameters.SearchText = FindText.Text;
            findTask.ExecuteAsync(findParameters);
        }

Thank´s!

JenniferNery

You can try the following code. I tweaked just the highlighted code from this SDK sample: http://resources.arcgis.com/en/help/silverlight-api/samples/start.htm#Find

   FindTask findTask = new FindTask("http://sampleserver1.arcgisonline.com/ArcGIS/rest/services/Specialty/ESRI_StatesCitiesRivers_USA/MapServer");  
   findTask.ExecuteCompleted += (a, b) =>
    {
     Dispatcher.BeginInvoke((Action)delegate
     {
      MessageBox.Show(string.Format("Result.Count: {0}", b.FindResults.Count));
     });

    };
   FindParameters findParameters = new FindParameters();
   findParameters.LayerIds.AddRange(new int[] { 0, 1, 2 });
   findParameters.SearchFields.AddRange(new string[] { "CITY_NAME", "NAME", "SYSTEM", "STATE_ABBR", "STATE_NAME" });   
   findParameters.LayerDefinitions = new LayerDefinition[] 
   {
    new LayerDefinition() { LayerID = 0, Definition = "STATE='California" },
    new LayerDefinition() { LayerID = 2, Definition = "STATE='California" } 
   };
   findParameters.SpatialReference =new SpatialReference(4326);
   findParameters.SearchText = "River";
   findTask.ExecuteAsync(findParameters);