private void DownloadStringCompleted(object sender, DownloadStringCompletedEventArgs e)
{
if (e.Error != null)
{
OnGetMapServiceDetailsFailed(new ExceptionEventArgs(e.Error, e.UserState));
return;
}
if (string.IsNullOrEmpty(e.Result))
{
OnGetMapServiceDetailsFailed(new ExceptionEventArgs(new Exception("Empty response"), e.UserState));
return;
}
MapServiceInfo mapServiceInfo = null;
try
{
string json = e.Result;
Exception ex = createFromJSON(json);
if (ex != null)
{
OnGetMapServiceDetailsFailed(new ExceptionEventArgs(ex, e.UserState));
return;
}
byte[] bytes = Encoding.Unicode.GetBytes(json);
using (System.IO.MemoryStream memoryStream = new System.IO.MemoryStream(bytes))
{
DataContractJsonSerializer dataContractJsonSerializer = new DataContractJsonSerializer(typeof(MapServiceInfo));
mapServiceInfo = dataContractJsonSerializer.ReadObject(memoryStream) as MapServiceInfo;
memoryStream.Close();
}
if (mapServiceInfo == null)
{
OnGetMapServiceDetailsFailed(new ExceptionEventArgs(new Exception("Unable to deserialize response"), e.UserState));
return;
}
}
catch (Exception ex)
{
OnGetMapServiceDetailsFailed(new ExceptionEventArgs(ex, e.UserState));
return;
}
// Workaround for the fact that DataContractJsonSerializer doesn't call the default contructor
// http://msdn.microsoft.com/en-us/library/system.runtime.serialization.datacontractserializer.aspx
if (mapServiceInfo.SpatialReference != null)
{
if (mapServiceInfo.SpatialReference.WKID == default(int))
{
mapServiceInfo.SpatialReference.WKID = -1;
}
}
OnGetMapServiceDetailsCompleted(new GetMapServiceDetailsCompletedEventArgs()
{
MapServiceInfo = mapServiceInfo, UserState = e.UserState
});
}
private void DownloadStringCompleted(object sender, DownloadStringCompletedEventArgs e)
{
if (e.Error != null)
{
OnGetMapServiceDetailsFailed(new ExceptionEventArgs(e.Error, e.UserState));
return;
}
if (string.IsNullOrEmpty(e.Result))
{
OnGetMapServiceDetailsFailed(new ExceptionEventArgs(new Exception("Empty response"), e.UserState));
return;
}
MapServiceInfo mapServiceInfo = null;
try
{
string json = e.Result;
Exception ex = Utils.CheckJsonForException(json);
if (ex != null)
{
OnGetMapServiceDetailsFailed(new ExceptionEventArgs(ex, e.UserState));
return;
}
byte[] bytes = Encoding.Unicode.GetBytes(json);
using (System.IO.MemoryStream memoryStream = new System.IO.MemoryStream(bytes))
{
DataContractJsonSerializer dataContractJsonSerializer = new DataContractJsonSerializer(typeof(MapServiceInfo));
mapServiceInfo = dataContractJsonSerializer.ReadObject(memoryStream) as MapServiceInfo;
memoryStream.Close();
}
if (mapServiceInfo == null)
{
OnGetMapServiceDetailsFailed(new ExceptionEventArgs(new Exception("Unable to deserialize response"), e.UserState));
return;
}
}
catch (Exception ex)
{
OnGetMapServiceDetailsFailed(new ExceptionEventArgs(ex, e.UserState));
return;
}
List <Resource> childResources = new List <Resource>();
if (mapServiceInfo.Layers != null)
{
foreach (MapServiceLayerInfo layerInfo in mapServiceInfo.Layers)
{
if (layerInfo.ParentLayerId != -1) // only had layers at the root of the map service node (no parent)
{
continue;
}
if (layerInfo.SubLayerIds == null)
{
childResources.Add(new Resource()
{
DisplayName = layerInfo.Name,
ResourceType = ResourceType.Layer,
Url = string.Format("{0}/{1}", Uri, layerInfo.ID),
Tag = layerInfo.ID,
});
}
else
{
childResources.Add(new Resource()
{
DisplayName = layerInfo.Name,
ResourceType = ResourceType.GroupLayer,
Url = string.Format("{0}/{1}", Uri, layerInfo.ID),
Tag = layerInfo.ID,
});
}
}
}
// Workaround for the fact that DataContractJsonSerializer doesn't call the default contructor
// http://msdn.microsoft.com/en-us/library/system.runtime.serialization.datacontractserializer.aspx
if (mapServiceInfo.SpatialReference != null)
{
if (mapServiceInfo.SpatialReference.WKID == default(int))
{
mapServiceInfo.SpatialReference.WKID = -1;
}
}
OnGetMapServiceDetailsCompleted(new GetMapServiceDetailsCompletedEventArgs()
{
ChildResources = childResources, MapServiceInfo = mapServiceInfo, UserState = e.UserState
});
}
private void DownloadStringCompleted(object sender, DownloadStringCompletedEventArgs e)
{
if (e.Error != null)
{
if (GetMapServiceDetailsFailed != null)
{
GetMapServiceDetailsFailed(this, new ExceptionEventArgs(e.Error, e.UserState));
}
return;
}
if (string.IsNullOrEmpty(e.Result))
{
if (GetMapServiceDetailsFailed != null)
{
GetMapServiceDetailsFailed(this, new ExceptionEventArgs(new Exception("Empty response"), e.UserState));
}
return;
}
MapServiceInfo mapServiceInfo = null;
try
{
string json = e.Result;
byte[] bytes = Encoding.Unicode.GetBytes(json);
using (System.IO.MemoryStream memoryStream = new System.IO.MemoryStream(bytes))
{
DataContractJsonSerializer dataContractJsonSerializer = new DataContractJsonSerializer(typeof(MapServiceInfo));
mapServiceInfo = dataContractJsonSerializer.ReadObject(memoryStream) as MapServiceInfo;
memoryStream.Close();
}
if (mapServiceInfo == null)
{
if (GetMapServiceDetailsFailed != null)
{
GetMapServiceDetailsFailed(this, new ExceptionEventArgs(new Exception("Unable to deserialize response"), e.UserState));
}
return;
}
}
catch (Exception ex)
{
if (GetMapServiceDetailsFailed != null)
{
GetMapServiceDetailsFailed(this, new ExceptionEventArgs(ex, e.UserState));
}
return;
}
List <Resource> childResources = new List <Resource>();
if (mapServiceInfo.Layers != null)
{
foreach (LayerInfo layerInfo in mapServiceInfo.Layers)
{
if (layerInfo.SubLayerIds == null)
{
childResources.Add(new Resource()
{
DisplayName = layerInfo.Name,
ResourceType = ResourceType.Layer,
Url = string.Format("{0}/{1}", Uri, layerInfo.ID),
});
}
else
{
childResources.Add(new Resource()
{
DisplayName = layerInfo.Name,
ResourceType = ResourceType.GroupLayer,
Url = string.Format("{0}/{1}", Uri, layerInfo.ID),
});
}
}
}
if (GetMapServiceDetailsCompleted != null)
{
GetMapServiceDetailsCompleted(this, new GetMapServiceDetailsCompletedEventArgs()
{
ChildResources = childResources, MapServiceInfo = mapServiceInfo, UserState = e.UserState
});
}
}
public void GetBaseMapServiceMetaData(object userToken)
{
if (string.IsNullOrEmpty(baseMapServiceUrl) || !Uri.IsWellFormedUriString(baseMapServiceUrl, UriKind.Absolute))
{
throw new InvalidOperationException(Resources.Strings.ExceptionMustSpecifyAbsoluteUriForBaseMapServiceUrl);
}
MapService mapService = new MapService(baseMapServiceUrl, null)
{
ProxyUrl = this.ProxyUrl
};
mapService.ServiceDetailsDownloadFailed += (o, e) => {
if (GetBaseMapServiceMetaDataFailed != null)
{
GetBaseMapServiceMetaDataFailed(this, e);
}
};
mapService.ServiceDetailsDownloadCompleted += (o, e) => {
MapService service = o as MapService;
if (service != null)
{
MapServiceInfo mapServiceInfo = service.ServiceInfo;
if (mapServiceInfo != null)
{
// Set spatial reference
SpatialReference spatialRef = mapServiceInfo.SpatialReference;
MapUnit mapUnit = MapUnit.Meters;
// Set map unit
string mapUnits = mapServiceInfo.Units;
if (!string.IsNullOrEmpty(mapUnits))
{
mapUnits = mapUnits.Replace("esri", string.Empty); // remove esri prefix from map units
if (Enum.IsDefined(typeof(MapUnit), mapUnits))
{
mapUnit = (MapUnit)Enum.Parse(typeof(MapUnit), mapUnits, true);
}
}
if (GetBaseMapServiceMetaDataCompleted != null)
{
GetBaseMapServiceMetaDataCompleted(this, new GetMapServiceMetaDataCompletedEventArgs()
{
MapUnit = mapUnit,
SpatialReference = spatialRef,
UserState = e.UserState,
FullExtent = mapServiceInfo.FullExtent,
InitialExtent = mapServiceInfo.InitialExtent,
IsCached = mapServiceInfo.TileInfo != null && mapServiceInfo.SingleFusedMapCache
});
}
}
else
{
if (GetBaseMapServiceMetaDataFailed != null)
{
GetBaseMapServiceMetaDataFailed(this, new ExceptionEventArgs(new Exception(Resources.Strings.ExceptionUnableToRetriveMapServiceInformation), e.UserState));
}
}
}
else
{
if (GetBaseMapServiceMetaDataFailed != null)
{
GetBaseMapServiceMetaDataFailed(this, new ExceptionEventArgs(new Exception(Resources.Strings.ExceptionUnableToRetriveMapServiceInformation), e.UserState));
}
}
};
mapService.GetServiceDetails(userToken);
}
