public async Task LoadAsync(StudentEvaluationArgs args)
{
ViewModelArgs = args ?? StudentEvaluationArgs.CreateDefault();
try
{
if (String.IsNullOrWhiteSpace(ViewModelArgs.StudentId) || String.IsNullOrWhiteSpace(ViewModelArgs.TeacherId))
{
Item = null;
IsEditMode = false;
}
else
{
var item = await StudentEvaluationService.GetStudentEvaluationAsync(ViewModelArgs.TeacherId, ViewModelArgs.StudentId);
Item = item ?? new StudentEvaluationModel {
StudentId = ViewModelArgs.StudentId, TeacherId = ViewModelArgs.TeacherId, IsEmpty = true
};
if (item == null)
{
IsEditMode = true;
}
else
{
IsEditMode = false;
}
}
}
catch (Exception ex)
{
await DialogService.ShowAsync("载入失败", ex.Message);
}
}
public StudentListViewModel(IDialogService dialogService, IStudentService studentService, IStudentEvaluationService studentEvaluationService) : base(dialogService)
{
StudentService = studentService;
StudentDetailsViewModel = new StudentDetailsViewModel(studentService, dialogService);
StudentEvaluationViewModel = new StudentEvaluationViewModel(studentEvaluationService, dialogService);
SArgs = new StudentDetailsArgs();
EArgs = new StudentEvaluationArgs();
}