I'm trying to add rows to a `TableLayout` in Android and the orientation property doesn't seem to work. Basically I need to create a `TableRow`, add multiple `TextView`s to it, and the add to the `TableLayout` and have the `TextView`s stacked vertically instead of horizontally. 

The XML looks like this:

```
<TableLayout android:id="@+id/mylayout"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical">
    <TableRow  android:orientation="vertical"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent">
            <TextView android:text="Test1"></TextView>
            <TextView android:text="Test2"></TextView>
    </TableRow>
</TableLayout>

```

This seems like it should work, but the TextViews end up stacked left to right. Any thoughts?