I'm trying to serialize some featurelayers to a local file, and then deserialize them in Visual Studio at design time to use as a design time datacontext. However, I can't find a way to serialize or deserialize. When I try to serialize, I get this exception:System.Runtime.Serialization.InvalidDataContractException was unhandled
Message=Type 'ESRI.ArcGIS.Client.FeatureLayer' cannot be serialized. Consider marking it with the DataContractAttribute attribute, and marking all of its members you want serialized with the DataMemberAttribute attribute. If the type is a collection, consider marking it with the CollectionDataContractAttribute. See the Microsoft .NET Framework documentation for other supported types.
At the WriteObject call in this code:private void button1_Click(object sender, RoutedEventArgs e)
{
var fLayer = new FeatureLayer();
fLayer.Url = "http://sampleserver1.arcgisonline.com/ArcGIS/rest/services/Specialty/ESRI_StateCityHighway_USA/MapServer/2";
fLayer.Initialized += (s, ea) =>
{
MemoryStream ms = new MemoryStream();
DataContractJsonSerializer ser = new DataContractJsonSerializer(typeof(FeatureLayer));
ser.WriteObject(ms, fLayer); // exception here
ms.Position = 0;
StreamReader sr = new StreamReader(ms);
string json = sr.ReadToEnd();
Debug.Print(json);
fLayer.ToString();
};
fLayer.Initialize();
}
When I try to deserialize, I get this Exception :System.ArgumentException was unhandled
Message=layerDefinition
Parameter name: Property was not found during JSON deserialization.
When I call FeatureLayer.FromJson:private void button1_Click(object sender, RoutedEventArgs e)
{
WebClient wc = new WebClient();
wc.OpenReadCompleted += (s, ea) =>
{
using (StreamReader sr = new StreamReader(ea.Result))
{
string json = sr.ReadToEnd();
Debug.Print(json);
var fLayer = FeatureLayer.FromJson(json);
Debug.Print(fLayer.LayerInfo.Fields.Count.ToString());
}
};
wc.OpenReadAsync(new Uri(@"http://sampleserver1.arcgisonline.com/ArcGIS/rest/services/Specialty/ESRI_StateCityHighway_USA/MapServer/2?f=pjson"));
}
