public static void Remove(string path, QTHT qtht)
{
if (File.Exists(path))
{
List<string> rs = new List<string>();
var lines = File.ReadAllLines(path);
foreach(var line in lines)
{
var data = QTHT.Parse(line);
if(data.ID != qtht.ID)
{
rs.Add(line);
}
}
File.WriteAllLines(path, rs);
}
else
{
throw new Exception("File du lieu khong ton tai!");
}
}
/// <summary>
/// lay danh sach sinh vien vao file
/// </summary>
/// <param name="path">duong dan file</param>
/// <param name="idStudent"></param>
/// <returns></returns>
public static List<QTHT> getQTHT(string path,string idStudent)
{
List<QTHT> list = new List<QTHT>();
if (File.Exists(path))
{
var lines = File.ReadAllLines(path);
foreach (var line in lines)
{
var qtht = QTHT.Parse(line);
if (qtht.IDStudent == idStudent)
{
list.Add(qtht);
}
}
return list;
}
else
{
return null;
}
}