MvvmCross MvxListView not refreshing on item delete

Question

When I remove an item from my list, the MvxListView does not refresh.

My list (nothing fancy):

private List<Item> items = new List<Item>();
public List<Item> Items 
{ 
     get { return items; } 
     set { items = value; RaisePropertyChanged(() => Items); } 
}

The code that doesn't work:

Items.RemoveAll(x => x.Id == item.Id);
RaisePropertyChanged(() => Items); 

Code that does work:

Items = Items.Where(x => x.Id != item.Id).ToList();

It seems like the RaisePropertyChanged() function does not have the desired effect when being called from a isolated function within the viewmodel, but why?

Answer 1

You need to use an ObservableCollection to make the MvxListView update the content.

private ObservableCollection<Item> items = new ObservableCollection<Item>();
public ObservableCollection<Item> Items 
{ 
     get { return items; } 
     set { items = value; RaisePropertyChanged(() => Items); } 
}