internal override long GetRowCount(GetRowCountCallback callback)
{
var rowCount = 0;
using (var op = new FileOperator(base._file, FileOperator.OpenMode.Read)) {
while (!op.Eof)
{
op.ReadLine();
callback(++rowCount);
}
}
return(rowCount);
}
/// <summary> /// get total row count /// </summary> /// <returns>row count</returns> internal abstract long GetRowCount(GetRowCountCallback callback);
