SharpMap Selecting Geometry with GeoAPI.Geometries

Question

hi there i'm trying to create a function that will select a layers geometry and change its colour or highlight it.

I've found the FindGeoNearPoint function but this deals with the old SharpMap.Geometries whih no longer exists and has been replaced with GeoAPI.Geometries.

How do I alter the FindGeoNearPoint Function to use GeoAPI

Here is my attempt

     public SharpMap.Data.FeatureDataRow FindGeoNearPoint(GeoAPI.Geometries.IPoint pos, SharpMap.Layers.VectorLayer layer, double amountGrow)
    {

        GeoAPI.Geometries.Envelope bbox = new GeoAPI.Geometries.Envelope();
        SharpMap.Data.FeatureDataSet ds = new SharpMap.Data.FeatureDataSet();

        layer.DataSource.ExecuteIntersectionQuery(bbox, ds);

        DataTable tbl = ds.Tables[0] as SharpMap.Data.FeatureDataTable;

        NetTopologySuite.IO.WKTReader reader = new NetTopologySuite.IO.WKTReader();

        GeoAPI.Geometries.IGeometry point = reader.Read(pos.ToString());

        if (tbl.Rows.Count == 0)

            return null;



        double distance = point.Distance(reader.Read((tbl.Rows[0] as SharpMap.Data.FeatureDataRow).Geometry.ToString()));

        SharpMap.Data.FeatureDataRow selectedFeature = tbl.Rows[0] as SharpMap.Data.FeatureDataRow;



        if (tbl.Rows.Count > 1)

            for (int i = 1; i < tbl.Rows.Count; i++)
            {

                GeoAPI.Geometries.IGeometry line = reader.Read((tbl.Rows[i] as SharpMap.Data.FeatureDataRow).Geometry.ToString());

                if (point.Distance(line) < distance)
                {

                    distance = point.Distance(line);

                    selectedFeature = tbl.Rows[i] as SharpMap.Data.FeatureDataRow;

                }

            }

        return selectedFeature;

    }