xaml listview is not scrolling - xaml

Question

I have a listview inside a grid but the list is not scrolling.
The grid is inside a usercontrol
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition/>
<ColumnDefinition/>
</Grid.ColumnDefinitions>
<!--Lista-->
<ListView ItemsSource="{Binding PedidosRealizados}" SelectedItem="{Binding PedidoRealizadoSelec}" HorizontalAlignment="Center" VerticalAlignment="Top">
<ListView.View>
<GridView>
<GridViewColumn Header="ID" DisplayMemberBinding="{Binding IdPedido}" Width="100"/>
<GridViewColumn Header="CLIENTE" DisplayMemberBinding="{Binding ClientePedido.NombreCliente}" Width="300"/>
<GridViewColumn Header="TFNO" DisplayMemberBinding="{Binding ClientePedido.TfnoCliente}" Width="100"/>
</GridView>
</ListView.View>
</ListView>
<StackPanel Grid.Column="1">
<!--Menu botones-->
<DockPanel HorizontalAlignment="Center" Margin="0 0 0 10">
<Button x:Name="btnSigEstado" Style="{StaticResource MaterialDesignRaisedLightButton}" ToolTip="Pasar de Estado" Height="Auto" Width="125"
Command ="{Binding ComandoVistaPedidoRealizado}" CommandParameter="PasarEstado" Content="Pasar Estado" >
</Button>
<Button x:Name="btnEliminarPedido" Style="{StaticResource MaterialDesignRaisedLightButton}" ToolTip="Eliminar Pedido" Height="Auto" Width="130"
Command ="{Binding ComandoVistaPedidoRealizado}" CommandParameter="EliminarPedido" Content="Eliminar Pedido" Margin="10 0 0 0">
</Button>
<Button x:Name="btnColocarPrimero" Style="{StaticResource MaterialDesignRaisedLightButton}" ToolTip="Poner primero en lista" Height="Auto" Width="125"
Command ="{Binding ComandoVistaPedidoRealizado}" CommandParameter="PonerPrimero" Content="Poner Primero" Margin="10 0 0 0">
</Button>
</DockPanel>
Does anyone know which can be the solution?
I have tried putting the height to auto or the verticalaligment to strech but is not working.
The scroll only appears if i set the height smaller to the list, for example, if I set Height="400" and the list occupies more. But the problem is that I dont want to set a specific height to the list because, to achieve a responsive app.