public bool UpdateMark(string id, string mark)
{
int rightID;
int rightMark;
if (Int32.TryParse(id, out rightID) &&
Int32.TryParse(mark, out rightMark))
{
if (GetFileById(rightID) != null)
{
if (rightMark >= 0 &&
rightMark <= 10)
{
_fileDao.UpdateMark(Int32.Parse(id), Int32.Parse(mark));
return(true);
}
else
{
Console.WriteLine("Incorrect MARK! Mark must be between 0 and 10");
return(false);
}
}
else
{
Console.WriteLine("Can't find file");
return(false);
}
}
else
{
Console.WriteLine("Incorrect ID or MARK (not number");
return(false);
}
}