Thursday, July 28, 2011

The column name you have entered is already in use or reserved. Choose another name

I have faced very interesting issue last night.One of the users had changed / renamed the default content type “Title” to “Item Title” and when he tried to pull it back it gave an error – “The column name you have entered is already in use or reserved. Choose another name”
After modifying default name to custom name he realized that “Title” name had been changed to all over sites because on site all lists / libraries were inherited from parent content type. As a farm admin I even tried with no luck and got the same error.
There is a small JavaScript we have to run in browser which clears all the values in the forbidden column collection array and gives you a confirmation
And after running following JavaScript I got rid of that issue.
javascript:g_FieldName={};alert('Successfully cleared forbidden columns');

Rename wiki page title in MOSS 2007 / SharePoint 2010 without changing site URL

In Wiki pages if you change the page title it will also change the site URL.
So if you have put it as a reference on any site that link will be broken
Here is the method I have successfully used to change the page title without changing the site URL
  • Open the SharePoint site in SharePoint Designer

  • In Design mode select the page title, and rename it

  • Here I have found very weird behavior that in code window <title> parameter is missing so to generate <title> parameter remove Page Title from the design view

  • Page title is associated with “SharePoint:ListItemProperty”, so when we remove page title from the page this parameter will be removed in the code <SharePoint:ListItemProperty runat=”server”/>

  • Now in the design window add your own title which will generate <p> your title </p> parameter in code and you can refer this parameter for any future changes.

You can hide the page (Wiki page) title by simply adding comment “<!-- <p> title </p> -->”
Feel free to reach me in case of any queries.