Syntax for checking if a single grid field has content

So for this project I need to check if a grid field subfield (?) has content and then output code based on the results. There are 3 subfields within this single-row grid field and and I only one to check against one of them for content

Here’s my ham-fisted way of displaying what I would like to happen but any pointers on how to structure that properly would be appreciated.

{mygridfield}

{if mygridfield:text}

Yes there's stuff in here

{if:else}

Nothing to see here

{/if}

{/mygridfield}

Thanks.