public TeacherListViewModel(IDialogService dialogService, ITeacherService teacherService) : base(dialogService)
{
TeacherService = teacherService;
TeacherEvaluationViewModel = new TeacherEvaluationViewModel(dialogService, teacherService);
TeacherDetailsViewModel = new TeacherDetailsViewModel(dialogService, teacherService);
TArgs = new TeacherDetailsArgs();
EArgs = new TeacherEvaluationArgs();
}
public async Task LoadAsync(TeacherEvaluationArgs args)
{
ViewModelArgs = args ?? TeacherEvaluationArgs.CreateDefault();
try
{
if (String.IsNullOrWhiteSpace(ViewModelArgs.StudentId) || String.IsNullOrWhiteSpace(ViewModelArgs.TeacherId))
{
Item = null;
}
else
{
var item = await TeacherService.GetTeacherEvaluationAsync(ViewModelArgs.TeacherId, ViewModelArgs.StudentId);
Item = item ?? new TeacherEvaluationModel {
StudentId = ViewModelArgs.StudentId, TeacherId = ViewModelArgs.TeacherId, IsEmpty = true
};
}
}
catch (Exception ex)
{
await DialogService.ShowAsync("载入失败", ex.Message);
}
}