public BlockTraineeListViewModel(BlockTraineeBussiness bussiness)
{
_bussiness = bussiness;
_bussiness.LoadTraineesEvnet += trainees =>
{
Trainees.Clear();
if (trainees != null)
{
trainees.ForEach(t =>
{
Trainees.Add(new TraineeViewModel(t, false));
Trainees.Last().OperateTraineeEvent += OnOperateTrainee;
});
}
};
_bussiness.TraineeChangedEvent += (operation, trainee, newIndex) =>
{
switch (operation)
{
case OperationType.Add:
Trainees.Add(new TraineeViewModel(trainee, false));
Trainees.Last().OperateTraineeEvent += OnOperateTrainee;
break;
case OperationType.Update:
Trainees.Where(t => t.TraineeID == trainee.TraineeIDForShown).First().TraineeName = trainee.TraineeName;
break;
case OperationType.Delete:
Trainees.Remove(Trainees.Where(t => t.TraineeID == trainee.TraineeIDForShown).First());
break;
}
};
}
public IEnumerable <Trainee> GetAllTrainees(Func <Trainee, bool> predicat = null)
{
IEnumerable <Trainee> Trainees;
try
{
Trainees = from p in TraineeRoot.Elements()
select new Trainee()
{
ID = Convert.ToInt32(p.Element("TraineeID").Value),
FirstName = p.Element("FamilyName").Value,
FamilyName = p.Element("FamilyName").Value,
Gender = p.Element("Gender").Value,
PhoneNum = Convert.ToInt32(p.Element("PhoneNum").Value),
Address = p.Element("Address").Value,
Birthday = DateTime.Parse(p.Element("Birthday").Value),
Model = p.Element("Model").Value,
GearType = p.Element("Geartype").Value,
School = p.Element("School").Value,
TeacherName = p.Element("TeacherName").Value,
LessonAMT = Convert.ToInt32(p.Element("LessonAmt").Value),
};
if (predicat != null)
{
Trainees = Trainees.Where(predicat);
}
}
catch
{
Trainees = null;
}
return(Trainees);
}
public IEnumerable <Trainee> getAllTrainees(Func <Trainee, bool> predicat = null)
{
IEnumerable <Trainee> Trainees;
try
{
Trainees = from p in TraineeRoot.Elements()
// where predicat
select new Trainee()
{
id = Convert.ToInt32(p.Element("branchNumber").Value),
firstName = p.Element("First Name").Value,
lastName = p.Element("last Name").Value,
phoneNum = p.Element("PhoneNumber").Value,
Adress = p.Element("Address").Value,
birthday = Convert.ToDateTime(p.Element("Birthday").Value),
school = p.Element("School name").Value,
teacher = p.Element("Teacher name").Value,
numOfLessons = Convert.ToInt32(p.Element("number of lessons").Value),
transmission = (BE.Transmission)Enum.Parse(typeof(Transmission), p.Element("Transmission").Value),
Gender = (BE.gender)Enum.Parse(typeof(gender), p.Element("Gender").Value)
};
if (predicat != null)
{
Trainees = Trainees.Where(predicat);
}
}
catch
{
Trainees = null;
}
return(Trainees);
}
private void OnOperateTrainee(OperationType operation, TraineeModel trainee)
{
if (operation == OperationType.Select)
{
foreach (TraineeViewModel item in Trainees.Where(t => t.TraineeID != trainee.TraineeIDForShown))
{
item.ConvertToUnselected();
}
return;
}
_bussiness.OperateTrainee(operation, trainee);
}
public RegularTraineeListViewModel(RegularTraineeBussiness bussiness) : base()
{
_bussiness = bussiness;
_bussiness.LoadTraineesEvent += trainees =>
{
Trainees.Clear();
if (trainees != null)
{
trainees.ForEach(t =>
{
Trainees.Add(new TraineeViewModel(t, true));
Trainees.Last().OperateTraineeEvent += OnOperateTrainee;
});
}
};
_bussiness.TraineeChangedEvent += (operation, trainee, newIndex) =>
{
switch (operation)
{
case OperationType.Add:
Trainees.Add(new TraineeViewModel(trainee, true));
Trainees.Last().OperateTraineeEvent += OnOperateTrainee;
break;
case OperationType.Update:
if (newIndex == -1)
{ //只是更新信息
Trainees.Where(t => t.TraineeID == trainee.TraineeIDForShown).First().TraineeName = trainee.TraineeName;
}
else
{ //删除或者恢复
Trainees.Remove(Trainees.Where(t => t.TraineeID == trainee.TraineeIDForShown).First());
Trainees.Insert(newIndex, new TraineeViewModel(trainee, true));
Trainees[newIndex].OperateTraineeEvent += OnOperateTrainee;
}
break;
case OperationType.Delete:
Trainees.Remove(Trainees.Where(t => t.TraineeID == trainee.TraineeIDForShown).First());
break;
}
};
}
