Utilizing a custom layout with a column that does not contain a header may generate an error

[GoogleCodeExporter]

What steps will reproduce the problem?
1. Create a spreadsheet that is utilizing 5 columns (with headers on 4 of the 5)
2. Create a datasource url that utilizes headers
3. Use a custom layout that does not specify one of the columns
4. Run in a Presentation

What is the expected output? What do you see instead?
4 Columns should appear in the Presentation, but instead an error is generated.

What version of the product are you using? On what operating system?

Please provide any additional information below.
http://screencast.com/t/Nhg5bqY9q6zV
https://docs.google.com/spreadsheet/ccc?key=0Ag4DZSS6J8JOdHM4S3hNRlktWDBCUElhajB
vVUJGSXc#gid=1
http://rdn-test.appspot.com/#PRESENTATION_MANAGE/id=46986a9d-e713-466a-a543-09bd
ba29dd9b/company=fb788f1f-7730-44fd-8e00-20066409f51f

Original issue reported on code.google.com by neal.god...@risevision.com on 1 Aug 2012 at 2:17

[GoogleCodeExporter]

Original comment by neal.god...@risevision.com on 1 Aug 2012 at 9:06

• Added labels: Priority-High
• Removed labels: Priority-Medium

[GoogleCodeExporter]

In addition to fixing this, I'm going to change it so that if an image is shown 
on the Pop Up Card, its URL is not also shown in the Directory listing.

Original comment by donnapep@gmail.com on 2 Aug 2012 at 1:42

[GoogleCodeExporter]

Fixed both items.

Original comment by donnapep@gmail.com on 2 Aug 2012 at 2:54

• Changed state: Fixed

[GoogleCodeExporter]

Original comment by neal.god...@risevision.com on 2 Aug 2012 at 8:51

• Changed state: Verified

[GoogleCodeExporter]

Original comment by donnapep@gmail.com on 7 Aug 2012 at 1:52

• Changed state: Deployed