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POWPF: binding viewmodel property of type DateTime to Calendar inside ItemsControl
 

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    <p>i have a problem with WPF Binding. I want to bind a list of Months to a ItemsControl that shows a Calendar Control for each month. But each rendered Calendar shows DateTime.Now,not the bound DateTimes. Does anyone know why this is happening?</p> <p>This is what i have so far:</p> <p><strong>The MainWindow.xaml</strong></p> <pre><code>&lt;Window x:Class="CalendarListTest.MainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Title="MainWindow" Height="350" Width="525"&gt; &lt;Grid&gt; &lt;ItemsControl x:Name="calendarList"&gt; &lt;ItemsControl.ItemTemplate&gt; &lt;DataTemplate&gt; &lt;Calendar DisplayDate="{Binding CurrentDate}" /&gt; &lt;/DataTemplate&gt; &lt;/ItemsControl.ItemTemplate&gt; &lt;/ItemsControl&gt; &lt;/Grid&gt; </code></pre> <p></p> <p>** The place where the collection is assigned to the ItemsSource**</p> <pre><code> private void Window_Loaded( object sender, RoutedEventArgs e ) { CalendarList list = new CalendarList( ); list.Add( new CalendarMonth( ) { CurrentDate = DateTime.Parse( "1.1.1979" ) } ); list.Add( new CalendarMonth( ) { CurrentDate = DateTime.Parse( "1.2.1979" ) } ); list.Add( new CalendarMonth( ) { CurrentDate = DateTime.Parse( "1.3.1979" ) } ); calendarList.ItemsSource = list; } </code></pre> <p><strong>The CalendarMonth ViewModel</strong>:</p> <pre><code>public class CalendarMonth { private DateTime _currentDate; public DateTime CurrentDate { get { return _currentDate; } set { _currentDate = value; } } } </code></pre> <p><strong>And the Collection to bind to the ItemsControl</strong>:</p> <pre><code>public class CalendarList : ObservableCollection&lt;CalendarMonth&gt; { } </code></pre> <p>Now, the result:</p> <p><img src="https://i.stack.imgur.com/CsQ97.png" alt="enter image description here"></p> <p>Why is this happening?</p> <p>edit: When providing <code>&lt;Calendar DisplayDate="{Binding CurrentDate, Mode=OneWay}" /&gt;</code> the binding works. </p>
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