private CsvFileStructure.LocationInFile DetermineLocationInFile(int LineIndex)
{
// 如果已經進入 FooterLines，則直接回傳 LocationInFile.FooterLines
if (Cfs.FooterLinesCount > 0 &&
(FileTotalLinesCount - LineIndex) < Cfs.FooterLinesCount)
{
return(CsvFileStructure.LocationInFile.FooterLines);
}
// 針對所有分界點由低到高排序 (每個分界點皆須是 Unique，不適用的分界點為 -1)
List <Tuple <int, CsvFileStructure.LocationInFile> > list = new List <Tuple <int, CsvFileStructure.LocationInFile> >();
list.Add(Tuple.Create(Cfs.HeaderLineStartAt, CsvFileStructure.LocationInFile.HeaderLines));
list.Add(Tuple.Create(Cfs.DataLinesStartAt, CsvFileStructure.LocationInFile.DataLines));
list.Sort((x, y) => x.Item1.CompareTo(y.Item1));
// 依序比較是否進入該點範圍內，直到全部比較完畢
CsvFileStructure.LocationInFile result = CsvFileStructure.LocationInFile.HeadingLines;
foreach (Tuple <int, CsvFileStructure.LocationInFile> entry in list)
{
if (entry.Item1 <= LineIndex)
{
result = entry.Item2;
}
}
return(result);
}
private void ProcessForEachLine(string Line, int LineIndex)
{
CsvFileStructure.LocationInFile Loc = DetermineLocationInFile(LineIndex);
switch (Loc)
{
case CsvFileStructure.LocationInFile.HeadingLines:
{
break;
}
case CsvFileStructure.LocationInFile.HeaderLines:
{
Headers = Line.Split(Delimiters, StringSplitOptions.RemoveEmptyEntries);
break;
}
case CsvFileStructure.LocationInFile.DataLines:
{
ProcessForEachDataline(Line);
break;
}
case CsvFileStructure.LocationInFile.FooterLines:
{
break;
}
default:
{
break;
}
}
}
