从db填充listview

Question

我尝试使用ado.net从数据库填充wpf listview。我有这段代码：

private void Window_loaded(object sender, RoutedEventArgs e)
{
    ShowData(); 
}

public void ShowData()
{
    SqlConnection con = new SqlConnection(@"Data Source=mySource;Initial Catalog=dbName;Integrated Security=True");

    try
    {
        con.Open();
        SqlCommand comm = new SqlCommand("select book.ID_book, book.book, book.ID_autor, book.genre from book", con);
        DataTable dt = new DataTable();
        SqlDataAdapter data = new SqlDataAdapter(comm);
        data.Fill(dt);
        ListView1.DataContext = dt.DefaultView;
        con.Close();
    }
    catch
    {
        MessageBox.Show("error connection to database", "", MessageBoxButton.OK);
    }
}

我做错了什么？这不是我的连接错误

这是我的listview xaml：

<ListView Canvas.Left="243" Canvas.Top="41" Canvas.Right="0"  
                  Width="262"  
                  Name="ListView1" ItemsSource="{Binding DataContext}" 
                  MinWidth="250" MinHeight="100" Height="182" Margin="1"
                  >
            <ListView.View>