<Window x:Class="MainWindow"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="DataReader" Height="200" Width="300" Loaded="Window_Loaded">
  <Grid>
    <Grid.RowDefinitions>
      <RowDefinition />
      <RowDefinition Height="Auto" />
    </Grid.RowDefinitions>
    <ListBox Name="lsTfnos" Margin="10" />
    <Button Grid.Row="1" Name="btMostrarDatos" Content="_Mostrar datos" Margin="7" IsDefault="True" Click="btMostrarDatos_Click" />
  </Grid>
</Window>
