Inserting a new Feature Class into SDE

MattMoyles — Mon, 13 Sep 2010 14:34:47 GMT

I've been trying to create a new featureclass in the SDE database, and while it creates the FeatureClass fine. It does not write any of the fields. I'm not sure what I'm doing wrong here. If anyone could take a look at this snippet of code thank you in advance!


            //Setup source dataset
            IFeatureClassName featureClassName = new FeatureClassNameClass();
            //IFeatureDatasetName featureDatasetName = new FeatureDatasetNameClass();
            IDatasetName sourceDatasetName = (IDatasetName)featureClassName;
            sourceDatasetName.Name = "Placemarks_line";
            sourceDatasetName.WorkspaceName = sourceWorkspaceName;
            IName sourceName = (IName)sourceDatasetName;

            IFeatureClass sourceFeatureClass = (IFeatureClass)sourceName.Open();

            IFeatureClassDescription fcDesc = new FeatureClassDescriptionClass();
            IObjectClassDescription ocDesc = (IObjectClassDescription)fcDesc;

            IWorkspace targetWorkspace = (IWorkspace)targetName.Open();
            IWorkspaceEdit editTargetWorkspace = (IWorkspaceEdit)targetWorkspace;

            editTargetWorkspace.StartEditing(true);

            IFeatureWorkspace featureTargetWorkspace = (IFeatureWorkspace)targetWorkspace;
            IFeatureDataset targetDataset = featureTargetWorkspace.OpenFeatureDataset("NOAA_Services");

            //creates a new feature class in the sde database
            IFeatureClass targetFeatureClass = targetDataset.CreateFeatureClass("NWS_Warnings4", sourceFeatureClass.Fields, ocDesc.InstanceCLSID, ocDesc.ClassExtensionCLSID, esriFeatureType.esriFTSimple, fcDesc.ShapeFieldName, "");
            IFeatureClassWrite writeTFC = (IFeatureClassWrite)targetFeatureClass;
            
            //copy features from source featureclass to target
            IQueryFilter qry = new QueryFilterClass();
            qry.WhereClause = "OID > 0";
            IFeatureCursor fcur = sourceFeatureClass.Search(qry, true);
            IFeature tmpFeature;
            while ((tmpFeature = fcur.NextFeature()) != null)
            {
                Console.WriteLine(tmpFeature.get_Value(0));
                editTargetWorkspace.StartEditOperation();
                writeTFC.WriteFeature(tmpFeature);
                editTargetWorkspace.StopEditOperation();
            }

            editTargetWorkspace.StopEditing(true);

Specifically, writeTFC.WriteFeature(tmpFeature); does not do what I expect it to. Which is add the feature to the new featureclass I created.

Re: Inserting a new Feature Class into SDE

Ashwiniw — Wed, 15 Sep 2010 17:20:00 GMT

You probably need to add fields to your featureclass, either copy fields (pFields - collection of fields) from the featureclass that contains features you are copying. Or create new fields individually using iFieldedit object, specify field type and length and other routine stuff.

topic Re: Inserting a new Feature Class into SDE in ArcObjects SDK Questions

Inserting a new Feature Class into SDE

Re: Inserting a new Feature Class into SDE