/// <summary>
/// read one line until end (return null;)
/// </summary>
/// <returns></returns>
public string ReadOneLine()
{
if (curIndex == 0 || !string.IsNullOrEmpty(curLine))
{
curLine = fileStreamReader.ReadLine();
if (!string.IsNullOrEmpty(curLine))
{
this.curIndex++;
FileRecord fr = new FileRecord();
this.curLineFileSize = fr.GetSize(curLine);
return(this.curLine);
}
return(null);
}
else
{
return(null);
}
}