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copied!<p>Here is a Demo using MVVM approach</p> <h1>ViewModel</h1> <pre><code>public class AccountListViewModel : INotifyPropertyChanged { ICommand AddAccountCommand {get; set;} public AccountListViewModel() { AccountList = new ObservableCollection<string>(); AddAccountCommand= new RelayCommand(AddAccount); //Fill account List saved data FillAccountList(); } public AddAccount(object obj) { AccountList.Add(AccountName); //Call you Model function To Save you lIst to DB or XML or Where you Like SaveAccountList() } public ObservableCollection<string> AccountList { get {return accountList} ; set { accountList= value OnPropertyChanged("AccountList"); } } public string AccountName { get {return accountName } ; set { accountName = value OnPropertyChanged("AccountName"); } } } </code></pre> <h1>Xaml Binding</h1> <pre><code><ListBox ItemsSource="{Binding Path=AccountList}" Height="164" HorizontalAlignment="Left" Margin="12" Name="accountListBox" VerticalAlignment="Top" Width="161" /> <TextBox Text={Binding Path=AccountName}></TextBox> <Button Command={Binding Path=AddAccountCommand}><Button> </code></pre> <h1>Xaml.cs Code</h1> <pre><code> # region Constructor /// <summary> /// Default Constructor /// </summary> public MainView() { InitializeComponent(); this.DataContext = new AccountListViewModel(); } # endregion </code></pre> <p>The Implementation of <code>INotifyPropertyChanged</code> and forming porpeties is left upto you</p>

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