How can I create a column that always points to the same hyperlink and is not editable

Question

Working with foundation 2010.

I'm trying to create an admin configurable read-only hyperlink field.

I'd like a column type where I can specify the url and description (in the content type administration), but when it's used in a list on the site, those values are read-only.

How can I go about this?

Answer 1

You will need to create a custom field type

For what you need the code will be very easy to produce.

Answer 2

So you want to create a column that is going to be static, and the same for all items in the list? What a waste! Instead, it would make more sense to store the link in a separate location, and append it to the rendered views.

Answer 3

You should get most of your answer from here as it goes into detail with examples:

http://technet.microsoft.com/en-us/library/ee524076.aspx

and

http://sharepoint.microsoft.com/blogs/GetThePoint/Lists/Posts/Post.aspx?ID=58

hope it helps :)