override public DataTable GetPreviewTable(int previewRowsCount = 100)
{
DataTable result = new DataTable();
foreach (var f in _shpWork.GetShapeFields())
{
result.Columns.Add(f.Key, f.Value);
}
_shpWork.StartRead();
for (int i = 0; i < previewRowsCount && _shpWork.Read(); i++)
{
List <object> colData = new List <object>();
for (int j = 0; j < result.Columns.Count; j++)
{
colData.Add(_shpWork[j]);
}
result.Rows.Add(colData.ToArray());
}
_shpWork.EndRead();
return(result);
}