Latest Contributions by ReneRubalcava

I recently tried updating an app to allow adding selections to a FeatureLayer. This is using the 2.4 Flex API (want to avoid updating for the moment). I'm not doing any editing, I'm just loading the FeatureLayer with a service url like so http://internalserver/ArcGIS/rest/services/SewerFeatures/MapServer/4 I create my FeatureLayer like so fLayer.mode = FeatureLayer.MODE_SELECTION This thread suggests that I should use FeatureLayer.SELECTION_ADD when initializing, but when I did that, no selections worked. Anyway, I can do a selection using the default "new" fLayer.selectFeatures( query, FeatureLayer.SELECTION_NEW, new AsyncResponder( onSewerFeaturesSelected, onFault )); Then when I try to add to this selection at some point after the results are shown fLayer.selectFeatures( query, FeatureLayer.SELECTION_ADD, new AsyncResponder( onSewerFeaturesSelected, onFault )); It doesn't add new features to the selection, it just does a new selection and clears what was previously selected. These queries are being done via a geometry if that matters. Maybe I'm misunderstanding what FeatureLayer.SELECTION_ADD does when in FeatureLayer.MODE_SELECTION. I can probably work around it by saving my selected graphics and adding them back, but I would think the above method should work. ... View more

Please excuse my noobness when it comes to Silverlight, I'm still learning it. I am currently trying to select an item in my FeatureLayer based on a row click of a DataGrid. I found this thread, which I thought would get me on the right track, and I think I'm half way there. http://forums.arcgis.com/threads/19265-Selection-Based-on-Attributes?highlight=featurelayer+selection <esri:FeatureLayer ID="WorkOrders" x:Name="wo_FeatureLayer" Url="http://servername/ArcGIS/rest/services/WorkOrders/MapServer/0"                                    OutFields="*"> </esri:FeatureLayer> Then I have a DataGrid with some data where a single field matches an ID in my FeatureLayer. I use the DataGrids SelectionChanged event to start my query.         private void wo_DataGrid_SelectionChanged(object sender, SelectionChangedEventArgs e)         {             try             {                 WORK_ORDER wo = e.AddedItems[0] as WORK_ORDER;                 MessageBox.Show(wo.WorkOrderID.ToString());                                 // when I step through on a breakpoint here, it always tells me wo_FeatureLayer is null                 var graphic = wo_FeatureLayer.Where(g => g.Attributes["MXWONUM"].ToString() == wo.WorkOrderID.ToString()).First();                 graphic.Select();             }             catch(Exception err)             {                 MessageBox.Show("oops:" + err.Message);             }         } The resulting error is, "Value cannot be null. Parameter name:source" I know the FeatureLayer works, because I use it's MouseLeftDown event to populate another window without issue. I'm sure I must be missing something simple, but a nudge in the right direction would be helpful. Thanks. ... View more

I don't see this as an option in the API docs, so I was trying to extend FeatureLayer and override updateLayers() or something to try and remove the GlowFilter, but can't figure it out. I need to optimize selecting thousands of points and lines, and I think the added GlowFilter is adding my overhead. Clustering isn't an option for the data type being represented. Any tips? I could go back to using a GraphicLayer, but I'd need to do a lot of rewrites to replicate the relationship queries I am doing. ... View more

Maybe I'm looking at this wrong, but I have looked over the docs and can't find any further info on FieldType, except that it's a parameter to FieldInfo::GetFieldType(). FieldInfo fInfo; table.GetFieldInformation(fInfo); int count = 0; fInfo.GetFieldCount(count); wstring fieldNames = L""; for (int x = 0; x < count; x++) { wstring f = L""; fInfo.GetFieldName(x, f); fieldNames.append(f); FieldType fType; fInfo.GetFieldType(x, fType); fieldNames.append(L", "); } Basically, what I'm trying to do is get the names of each field and the field type. When I test something like this out in a sample app, I can do wcout << fType << endl; I get an integer, which I am guessing coincides with an something like esriIntegerType, but are there methods to FieldType, like toString() or something to get that? I'm new to C++ and I'm just a little confused on how to use this. Thanks. ... View more