GetFeatures errors "Operation is not valid due to the current state of the object"

DavidTruffet — Tue, 03 Apr 2012 04:40:07 GMT

The following code fragment:

private IList<Feature> GetPhotos(Feature feature)
{
QueryFilter filter = new QueryFilter("COND_SITE_ID = {" + feature.GetDataRow().GlobalId + "}");
LayerInfoCollection layers = feature.FeatureLayerInfo.MobileCacheInfo.LayerInfos;
FeatureLayerInfo childLayer = layers["photos"];
IList<Feature> features = childLayer.GetFeatures(filter,EditState.Current);
return features;
}

if the feature has photos associated, it consitently get the below stack trace. on call to childLayer.GetFeatures(filter);

As is I need this code to be executied while the feature being passed in is being edited so I can display list of associated photos, etc....

I have tried:

FeatureDataReader reader = new FeatureDataReader(info.FeatureLayer, filter,EditState.Current);

but get the same stack trace. (from ArcGIS Mobile build 2525)

ESRI ®ArcGIS Mobile 10.0.0.0
Tuesday, April 03, 2012 2:39:18 PM

-----
Message:
Operation is not valid due to the current state of the object.
Stack Trace:
   at ESRI.ArcGIS.Mobile.MobileServices.FeatureDataReader.InitCursor()
   at ESRI.ArcGIS.Mobile.MobileServices.FeatureDataReader.Reset()
   at ESRI.ArcGIS.Mobile.MobileServices.FeatureDataReader..ctor(FeatureLayer featureLayer, QueryFilter queryFilter, EditState requestedEditState, Boolean lockedRead, String[] columnNames)
   at ESRI.ArcGIS.Mobile.MobileServices.FeatureDataReader..ctor(FeatureLayer featureLayer, QueryFilter queryFilter, EditState requestedEditState, String[] columnNames)
   at ESRI.ArcGIS.Mobile.Client.FeatureLayerInfo.GetFeatures(QueryFilter queryFilter, EditState editState)
   at ESRIAU.ArcGIS.Mobile.CustomEditFeature.ChildrenInputControl.GetPhotos(Feature feature) in D:\LARIE\CommonArcgis10\Development\EsriMobile\CustomEditFeaturePage\CustomEditFeaturePage\CustomEditFeature\ChildrenInputControl.xaml.cs:line 213

topic GetFeatures errors &quot;Operation is not valid due to the current state of the object&quot; in ArcGIS for Windows Mobile Questions

GetFeatures errors "Operation is not valid due to the current state of the object"

topic GetFeatures errors "Operation is not valid due to the current state of the object" in ArcGIS for Windows Mobile Questions