<p>I have a page with a GridView on it that launches a popup, using Javascript. The user then selects an item, that updates the data connected to the GridView and closes the popup.</p>

<p>How do I refresh the first (ie the Calling page) so that I can refresh the data shown in my Gridview?</p>

Try this inside your popup:
```
```
<script>
window.opener.location.reload()
</script>
```
```
That should refresh the page that opened the pop-up