title: How to get data using ListView Binding via MVVM in wpf?
body: <p>i try to use generate MVVM pattern using Silverlight ListView. But if i bind data my silverlight control no data visualize. also no error return. i see empty gridview.</p>
  
  <h3>Model:</h3>
  
  <p><b>MyData.cs</b></p>
  
  <pre><code>
   public class MyData
      {
          public int ID { get; set; }
          public string Name { get; set; }
          public string Price { get; set; }
          public string Author { get; set; }
          public string Catalog { get; set; }
      }
  </code></pre>
  
  <h3>View:</h3>
  
  <p><b>BookViewer.xaml</b></p>
  
  <pre><code>
  &#60;UserControl x:Class="wpf.MVVM.Project.View.BookViewer"
      xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
      xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
      Height="500" Width="700"&#62;
      &#60;Grid&#62;
          &#60;StackPanel&#62;
              &#60;ListView Margin="8" Height="400" Width="650" ItemsSource="{Binding Path=MyData}"&#62;
           &#60;ListView.View&#62;
                      &#60;GridView &#62;
                          &#60;GridViewColumn Header="ID" Width="Auto"&#62;
                              &#60;GridViewColumn.CellTemplate&#62;
                                  &#60;DataTemplate&#62;
                                      &#60;TextBlock Text="{Binding ID}" TextAlignment="Right" Width="40"/&#62;
                                  &#60;/DataTemplate&#62;
                              &#60;/GridViewColumn.CellTemplate&#62;
                          &#60;/GridViewColumn&#62;
                          &#60;GridViewColumn DisplayMemberBinding="{Binding Path=Name}" Header="Name" Width="100"/&#62;
                          &#60;GridViewColumn DisplayMemberBinding="{Binding Path=Price}" Header="Price" Width="100"/&#62;
                          &#60;GridViewColumn DisplayMemberBinding="{Binding Path=Author}" Header="Author" Width="100"/&#62;
                          &#60;GridViewColumn DisplayMemberBinding="{Binding Path=Catalog}" Header="Catalog" Width="100"/&#62;
                      &#60;/GridView&#62;
                  &#60;/ListView.View&#62;
              &#60;/ListView&#62;
          &#60;/StackPanel&#62;
      &#60;/Grid&#62;
  &#60;/UserControl&#62;
  </code></pre>
  
  <h3>ViewModel:</h3>
  
  <p><b>MyDataViewModel.cs</b></p>
  
  <pre><code>
    public class MyDataViewModel
      {
         // public ObservableCollection&#60;MyData&#62; myData { get; set; }
          public List&#60;MyData&#62; GetData()
          {
              List&#60;MyData&#62; myDataList = new List&#60;MyData&#62;();
              myDataList.Add(new MyData() { ID = 1, Name = "yusuf karatoprak", Author = "Mike Gold", Price = "6.7 TL", Catalog = "IT" });
              myDataList.Add(new MyData() { ID = 2, Name = "yusuf karatoprak", Author = "Scott Gunitella", Price = "9.7 TL", Catalog = "IT" });
              myDataList.Add(new MyData() { ID = 3, Name = "yusuf karatoprak", Author = "David Hayden", Price = "11.7 TL", Catalog = "IT" });
              if (myDataList.Count &#62; 0)
              {
                  return myDataList;
              }
              else
                  return null;
          }
  
      }
  </code></pre>
  
  <h3>Window1.xaml</h3>
  
  <pre><code>  public partial class Window1 : Window
      {
          public Window1()
          {
              InitializeComponent();
          }
  
          private void Window_Loaded(object sender, RoutedEventArgs e)
          {
              MyDataViewModel myDataCtx = new MyDataViewModel();
              MyDataDataView.DataContext = myDataCtx.GetData();
          }
      }</code></pre>
  
  <pre><code>
  &#60;Window x:Class="wpf.MVVM.Project.Window1"
      xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
      xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
      Title="Window1" Height="1000" Width="900"
      xmlns:views="clr-namespace:wpf.MVVM.Project.View" Loaded="Window_Loaded"&#62;
      &#60;Grid&#62;
          &#60;views:BookViewer x:Name="MyDataDataView" Margin="0,0,0,0"&#62;&#60;/views:BookViewer&#62;
      &#60;/Grid&#62;
  &#60;/Window&#62;
  </code></pre>
  
  <p>i writed these codes but no data i can see.Look below:</p>
  
  <p><img src="https://i.stack.imgur.com/98mL9.png" alt="alt text"></p>
  
  <h3>i added 2 pics my debug mode:</h3>
  
  <p><img src="https://i.stack.imgur.com/ALnbO.png" alt="alt text">
  <img src="https://i.stack.imgur.com/HqdBS.png" alt="alt text"></p>