public async Task <bool> AddSubGroupId(SubGroupId subGroupId)
{
_context.SubGroupIds.Add(subGroupId);
int result = await _context.SaveChangesAsync();
if (result > 0)
{
return(true);
}
return(false);
}
public async Task <int> DeleteAllSubGroupId()
{
foreach (var id in _context.SubGroupIds.Select(e => e.Id))
{
var entity = new SubGroupId {
Id = id
};
_context.SubGroupIds.Attach(entity);
_context.SubGroupIds.Remove(entity);
}
return(await _context.SaveChangesAsync());
}
private void DeleteButton_Click(object sender, RoutedEventArgs e)
{
SubGroupId groupId = (SubGroupId)dataGridSubGroupID.SelectedItem;
SubGroupIdDataService groupIdDataService = new SubGroupIdDataService(new EntityFramework.TimetableManagerDbContext());
groupIdDataService.DeleteSubGroupId(groupId.Id).ContinueWith(result =>
{
MessageBox.Show("Deleted");
});
_ = SubGroupIdDataList.Remove(groupId);
}
public async Task load()
{
SubGroupIdDataService groupIdDataService = new SubGroupIdDataService(new EntityFramework.TimetableManagerDbContext());
SubGroupIdList = await groupIdDataService.GetSubGroupId();
SubGroupIdList.ForEach(e =>
{
SubGroupId l = new SubGroupId();
l.Id = e.Id;
l.SubGroupID = e.SubGroupID;
SubGroupIdDataList.Add(l);
});
}