static void ReadTest1Shp(string shpPath)
{
IFeatureSet fs = FeatureSet.Open(shpPath);
var ntsFec = fs.ToNtsFeatureCollection();
var newShpPath = Path.Combine(
Path.GetDirectoryName(shpPath),
Path.GetFileNameWithoutExtension(shpPath) + "_new.shp");
var newFs = ntsFec.ToCsFeatureSet();
newFs.Save(newShpPath);
var sb = new StringBuilder();
var writer = new StringWriter(sb);
var serializer = GeoJsonSerializer.CreateDefault();
serializer.NullValueHandling = NullValueHandling.Ignore;
serializer.Serialize(writer, ntsFec);
writer.Flush();
Console.WriteLine(writer.ToString());
writer.Dispose();
Console.WriteLine();
}
