Get all edits in a version

[JimmyBowden]

I'm in need of getting all the features (feature class and oid) that have been edited in a version.  I've seen the example of using a differences cursor ProConcepts Geodatabase · Esri/arcgis-pro-sdk Wiki · GitHub . I'm hoping there's a shortcut in the ArcGIS Pro SDK that prevents me from having to iterate all the feature classes with each difference type.  Any thoughts?  Thanks in advance.

[RichRuh · Accepted solution]

There’s no shortcut. If you’re calling this against a feature service, only one REST call is made. 

[JimmyBowden]

Thanks for the quick response. I still have some concerns about getting the "right" list of feature classes to use but I have enough to work with.  Here's the code I came up with:  

using ArcGIS.Core.Data;

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

using Version = ArcGIS.Core.Data.Version;

namespace MyNameSpace

{

    public class VersionChangesService

    {

        public List<VersionChanges> GetChanges(Version version, List<string> featureclassnames)

        {

            List<VersionChanges> retval = new List<VersionChanges>();

            foreach (var item in featureclassnames)

            {

                retval.Add(GetVersionChangesByFeatureClass(version, item));

            }

            return retval;

        }

        private VersionChanges GetVersionChangesByFeatureClass(Version version, string featureclassname)

        {

            using (Geodatabase versiongdb = version.Connect())

            {

                using (Geodatabase geodatabase = new Geodatabase(new DatabaseConnectionFile(new Uri("path\\to\\sde\\file\\sdefile.sde"))))

                {

                    using (FeatureClass defaultFc = geodatabase.OpenDataset<FeatureClass>(featureclassname))

                    {

                        using (FeatureClass versionFc = versiongdb.OpenDataset<FeatureClass>(featureclassname))

                        {

                            List<VersionChange> diffs = GetAllDifferences(defaultFc, versionFc);

                            return new VersionChanges { featureClass = versionFc, Changes = diffs };

                        }

                    }

                }

            }

        }

        private List<VersionChange> GetAllDifferences(FeatureClass defaultFc, FeatureClass versionFc)

        {

            List<VersionChange> retval = new List<VersionChange>();

            retval.AddRange(GetDifferences(defaultFc, versionFc, DifferenceType.DeleteNoChange));

            retval.AddRange(GetDifferences(defaultFc, versionFc, DifferenceType.DeleteUpdate));

            retval.AddRange(GetDifferences(defaultFc, versionFc, DifferenceType.Insert));

            retval.AddRange(GetDifferences(defaultFc, versionFc, DifferenceType.UpdateDelete));

            retval.AddRange(GetDifferences(defaultFc, versionFc, DifferenceType.UpdateNoChange));

            retval.AddRange(GetDifferences(defaultFc, versionFc, DifferenceType.UpdateUpdate));

            return retval;

        }

        private List<VersionChange> GetDifferences(FeatureClass defaultFc, FeatureClass versionFc, DifferenceType differenceType)

        {

            List<VersionChange> retval = new List<VersionChange>();

            using (DifferenceCursor differenceCursor = versionFc.Differences(defaultFc, differenceType))

            {

                List<long> diffs = new List<long>();

                while (differenceCursor.MoveNext())

                {

                    using (Row current = differenceCursor.Current)

                    {

                        diffs.Add(differenceCursor.ObjectID);

                    }

                }

                retval.AddRange(diffs.Select(s => new VersionChange { objectId = s, differenceType = DifferenceType.DeleteNoChange }));

            }

            return retval;

        }

    }

    public class VersionChange

    {

        public DifferenceType differenceType { get; set; }

        public long objectId { get; set; }

    }

    public class VersionChanges

    {

        public FeatureClass featureClass { get; set; }

        public List<VersionChange> Changes { get; set; }

    }

}