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POBindingMode.TwoWay does not work with UserControl (not update source property)
 

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  1. POBindingMode.TwoWay does not work with UserControl (not update source property)
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    <p><strong>I have created Custom User Control which contain TextBox and PasswordBox. it is binding completely work but when i changed any value inside TextBox or PasswordBox of user control then my source property does not getting refreshed.</strong></p> <p><em>Following are the code for my Custom User Control</em></p> <p><strong>RestrictedBox.xaml</strong></p> <pre><code>&lt;UserControl.Resources&gt; &lt;Converters:EnumToVisibilityConverter x:Key="enumToVisibilityConverter" /&gt; &lt;Converters:EnumToVisibilityConverterReverse x:Key="enumToVisibilityConverterReverse" /&gt; &lt;/UserControl.Resources&gt; &lt;Grid x:Name="LayoutRoot" Background="Transparent" &gt; &lt;StackPanel&gt; &lt;TextBox x:Name="txtTextBox" Width="50" Height="25" /&gt; &lt;PasswordBox x:Name="txtPasswordBox" Width="50" Height="25" /&gt; &lt;/StackPanel&gt; &lt;/Grid&gt; </code></pre> <p><strong>RestrictedBox.xaml.cs</strong></p> <pre><code>public partial class RestrictedBox : UserControl { public RestrictedBox() { InitializeComponent(); txtTextBox.SetBinding(TextBox.TextProperty, new Binding { Source = this, Path = new PropertyPath("Value"), Mode = BindingMode.TwoWay }); txtTextBox.SetBinding(TextBox.VisibilityProperty, new Binding("Type") { Source = this, Converter = new EnumToVisibilityConverter() }); txtPasswordBox.SetBinding(PasswordBox.PasswordProperty, new Binding { Source = this, Path = new PropertyPath("Value"), Mode = BindingMode.TwoWay }); txtPasswordBox.SetBinding(TextBox.VisibilityProperty, new Binding("Type") { Source = this, Converter = new EnumToVisibilityConverterReverse() }); } public string Value { get { return (string)GetValue(ValueProperty); } set { SetValue(ValueProperty, value); } } public static readonly DependencyProperty ValueProperty = DependencyProperty.Register("Value", typeof(string), typeof(RestrictedBox), new PropertyMetadata("", ValueChanged)); private static void ValueChanged(DependencyObject d, DependencyPropertyChangedEventArgs e) { } public Mode Type { get { return (Mode)GetValue(TypeProperty); } set { SetValue(TypeProperty, value); } } public static readonly DependencyProperty TypeProperty = DependencyProperty.Register("Type", typeof(Mode), typeof(RestrictedBox), new PropertyMetadata(Mode.Text, TypeChanged)); private static void TypeChanged(DependencyObject d, DependencyPropertyChangedEventArgs e) { } } </code></pre> <p><em>Following are the code for LoginView where i have used my custom User Control (RestrictedBox).</em></p> <p><strong>LoginView.xaml</strong></p> <pre><code>&lt;control:RestrictedBox Type="Text" Value="{Binding Path=UserName}" /&gt; </code></pre> <p><strong>LoginView.xaml.cs</strong></p> <pre><code> [Export(typeof(LoginView))] [PartCreationPolicy(CreationPolicy.NonShared)] public partial class LoginView : UserControl, IPageTitle { #region Constuctors public LoginView() { InitializeComponent(); } [Import] public LoginViewModel ViewModel { get { return this.DataContext as LoginViewModel; } set { DataContext = value; } } #endregion } </code></pre> <p><strong>LoginViewModel.cs</strong></p> <pre><code>[Export] [PartCreationPolicy(CreationPolicy.NonShared)] public class LoginViewModel : INotifyPropertyChanged, IRegionMemberLifetime { private string _UserName = ""; public string UserName { get { return _UserName; } set { _UserName = value; OnPropertyChanged("UserName"); } } [ImportingConstructor] public LoginViewModel(IEventAggregator eventAggregator, IRegionManager regionManager) { } } </code></pre> <p><strong>Please help me to resolved this because i am trying to resolve since last 1.5 days without any luck.</strong></p> <p><strong>Your comments and suggestions would be highly appreciated.</strong></p> <p><strong>Note:-</strong> I am able to bind value of the UserName to TextBox but i update TextBox and click on submit i couldn't getting updated value from TextBox.</p> <p>Thanks,</p> <p>Imdadhusen</p>
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    1. USimdadhusen
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    1. COWhere are you trying to get the value ??? Do you want to get the Username and password in LoginViewModel??
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    2. COYes. I would like to get those values on my LoginViewModel.
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