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I have a Xamarin project. I want to fill a list view with a List of Objects and the listview must refresh itself after any add,update or delete of the list. I have managed to do so with the add and update, but when i try to delete the Listview doesn't refresh. I use a INotifyPropertyChanged basemodel to inherit from:

 public class BaseModel : INotifyPropertyChanged
 
 public event PropertyChangedEventHandler PropertyChanged;


 protected bool SetProperty<T>(ref T storage, T value,
 [CallerMemberName] String propertyName = null)
 
 if (object.Equals(storage, value)) return false;

 storage = value;
 this.OnPropertyChanged(propertyName);
 return true;
 

 protected void OnPropertyChanged([CallerMemberName] string propertyName = null)
 
 var eventHandler = this.PropertyChanged;
 if (eventHandler != null)
 
 eventHandler(this, new PropertyChangedEventArgs(propertyName));
 
 

 

The ipsettings model:

public class IpSettingModel : BaseModel
 
 public IpSettingModel(String ip)
 
 this._ip = ip; 
 

 private string _ip = string.Empty; 
 public string ip
 
 get return this._ip; 
 set this.SetProperty(ref this._ip, value); 
 

Fill the listview with a adapter:

ObservableCollection<IpSettingModel> iplist = new ObservableCollection<IpSettingModel>();

 IpAdapter myadapter = new IpAdapter(this, iplist);
 ipListview.Adapter = myadapter;

So far so good. If i add or update a object of the list it works fine.
When i try to remove a object

IpManageClass.datasource.Remove(IpManageClass.datasource.Where(o => o.ip == selecteditem.ip).Single());

the object is removed from the ObservableCollection but the Listview does not refresh. What am i missing?

I found a work around solution.
i added a update function on the adapter:

public void Update()
 
 NotifyDataSetChanged();
 

and i call this function after the deletion of any object of my list