Add Remove Item from Observable collection using C# and VB.Net

Hi SUJAYS,

Observable collection represents a dynamic data collection that provides notifications when items get added or removed, or when the whole list is refreshed.

For more details refer below link.

ObservableCollection Class

Refer following code to add and remove items from observable collection.

Model

C#

public class Person
{
    public string Name { get; set; }
    public int Age { get; set; }
}

VB.Net

Public Class Person
    Public Property Name As String
    Public Property Age As Integer
End Class

Namespaces

C#

using System.Collections.ObjectModel;

VB.Net

Imports System.Collections.ObjectModel

Code

C#

ObservableCollection<Person> persons = new ObservableCollection<Person>();
// Adding object to ObservableCollection.
persons.Add(new Person { Name = "Mudassar Khan", Age = 38 });
persons.Add(new Person { Name = "Dharmendra Das", Age = 35 });
// Remove object from ObservableCollection.
persons.Remove(persons.Where(i => i.Name == "Dharmendra Das").SingleOrDefault());

VB.Net

Dim persons As ObservableCollection(Of Person) = New ObservableCollection(Of Person)()
' Adding object to ObservableCollection.
persons.Add(New Person With {.Name = "Mudassar Khan", .Age = 38})
persons.Add(New Person With {.Name = "Dharmendra Das", .Age = 35})
' Remove object from ObservableCollection.
persons.Remove(persons.Where(Function(i) i.Name = "Dharmendra Das").SingleOrDefault())

Screenshots

After adding item

After removing item