This issue was bugging me then I found this post that fixes it. The issue is that you
have an asp panel and have the button set to default. For styling reasons you want the
button to be a link button.
After changing it the enter key does not click the button instead it just refreshes the page.
Frustrating as it may seem there is a quick solution. Check out this blog post for the solution.
Link Button As An Asp Panel Default Button
Hope this helps your frustrations.
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