public int Read(FileLink root, TableName tname, DataSet ds)
{
var file = root.PathCombine(tname.DatabaseName.Name, tname.ShortName);
file = string.Format("{0}.{1}", file, EXT);
var link = FileLink.CreateLink(file, tname.Provider.UserId, tname.Provider.Password);
if (!link.Exists)
throw new InvalidDataException($"table {tname.FormalName} data file \"{file}\" not exist");
link.ReadXml(ds);
if (ds.Tables.Count > 0)
return ds.Tables[0].Rows.Count;
else
return -1;
}
