I have a DataGrid control inside a Grid control in one of my WPF windows.

```
<Grid>
  <Grid.RowDefinitions>
        <RowDefinition Height="Auto" />
        <RowDefinition Height="*" />
  </Grid.RowDefinitions>
  <SomeControl Grid.Row="0" />
  <DataGrid Grid.Row="1" VerticalScrollBarVisibility="Visible" VerticalAlignment="Stretch"/>
</Grid>

```

The problem is that when I add rows to the DataGrid it flows out of the containing window and its scroll bar remains inactive. How do I solve this problem and make the DataGrid's scroll bar to function correctly?