<Page xmlns="http://schemas.nativescript.org/tns.xsd" loaded="onLoaded">
  <GridLayout rows="*, 7*">
     <Button row="0" text="a1" tap="onButtonTap"/>

    <GridLayout id="Container" fontSize="12" borderColor="black" margin="5" borderWidth="1" row="1"/>
  </GridLayout>
</Page>