public IEnumerable <Student> Read(string path, out List <string> fieldNames)
{
List <Student> students = new List <Student>();
bool firstString = true;
fieldNames = new List <string>();
using (StreamReader streamReader = new StreamReader(path))
{
while (!streamReader.EndOfStream)
{
string pattern = streamReader.ReadLine();
List <string> patterns = StudentsCsvParser.ParsePattern(pattern).ToList();
if (firstString)
{
fieldNames = patterns;
firstString = false;
}
else
{
if (patterns.Count != fieldNames.Count)
{
throw new MarkFieldException("Incorrect count of marks");
}
Student student = pattern.ParseStudent();
student.Validate();
students.Add(student);
}
}
}
return(students);
}
public static void Validate(string fieldNames)
{
List <string> list = StudentsCsvParser.ParsePattern(fieldNames).ToList();
if (list.Count() < 3)
{
throw new FieldNameException(" not enouch columns");
}
if ((!list[0].Equals("Фамилия") || !list[1].Equals("Имя") || !list[2].Equals("Отчество")) && (!list[0].Equals("Surname") || !list[1].Equals("Name") || !list[2].Equals("Middle Name")))
{
throw new FieldNameException(" Wrong name of first 3 columns");
}
}
