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(TeacherDetailsArgs args)
{
ViewModelArgs = args ?? TeacherDetailsArgs.CreateDefault();
if (ViewModelArgs.IsNew)
{
Item = new TeacherModel();
}
else
{
try
{
var item = await TeacherService.GetTeacherAsync(ViewModelArgs.TeacherId);
Item = item ?? new TeacherModel {
TeacherId = ViewModelArgs.TeacherId, IsEmpty = true
};
}
catch (Exception e)
{
await DialogService.ShowAsync("载入失败", e.InnerException?.Message ?? e.Message);
}
}
}