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I am new in Binding and WPF recently I've learned how to create a listBox with multiple columns using Binding tech <ListView ItemsSource="{Binding Items}" Margin="306,70,22,17" MouseDoubleClick="listBoxSS_MouseDoubleClick" Name="listBoxSS" > <ListView.View> <GridView> <GridView.Columns> <GridViewColumn Header="first_name " Width="100" DisplayMemberBinding="{Binding Path=First_name}" /> <GridViewColumn Header="last_name" Width="100" DisplayMemberBinding="{Binding Path=Last_name}" /> <GridViewColumn Header="phone_number" Width="100" DisplayMemberBinding="{Binding Path=Phones[0]}" /> <GridViewColumn Header="notes" Width="100" DisplayMemberBinding="{Binding Path=Notes}" /> </GridView.Columns> </GridView> </ListView.View> </ListView> and this is the code: List<Student> arr = search.students(); listBoxSS.ItemsSource = arr; but the problem was when I tried to use add or remove item or clear listBoxSS.Items.Clear(); Please I need an example for using the items source or the way that I can ADD or Remove Item or Clear the list. EDIT: <ListView ItemsSource="{Binding Items}" Margin="306,70,22,17" MouseDoubleClick="listBoxSS_MouseDoubleClick" Name="listBoxSS" > <ListView.View> <GridView> <GridView.Columns> <GridViewColumn Header="first_name " Width="100" DisplayMemberBinding="{Binding Path=First_name}" /> <GridViewColumn Header="last_name" Width="100" DisplayMemberBinding="{Binding Path=Last_name}" /> <GridViewColumn Header="phone_number" Width="100" DisplayMembe

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