Since you didn't provide version information, I'm assuming that you have SharePoint 2010. So, you have two links for adding a new item there:
- Add new item link under the list view
- New Item button in ribbon
I reckon the most right way here is to change these two links and provide the same query string parameter ('Name') from the view page along to the New item form page.
Also, I assume that once the item with specified name has been created, the new item links should start working differently (or probably should stop working), because I anticipate that the Name value is supposed to be unique (and when the new item is created, the execution falls back to the same view page with the same
The first link could be modified from the XSLT (using
<Xsl> tag in SharePoint Designer, and overriding the
The second link could be changed using custom action, by replacing the OOTB ribbon button with your custom one (Location of the CommandUIDefinition element should be "Ribbon.ListItem.New.NewListItem").
The New item form page should be customized (probably again using SharePoint Designer), and through the generated XSLT, you can pre-set the 'Name' field control value there. Since the DataFormWebPart will use server-side controls to render field inputs, you will have to put the values into them using jquery or js, and probably hide them from the user and display a read-only text label instead of the hidden textbox.
Finally, the Update item form page should be customized either, the 'Name' field control should be switched to Display mode.
Although I admit, that the solution is not very elegant, it is all not so complicated as it might appear at the first glance, and all the work could be done within 1/2 hour. Of course, I think you understand, that this approach is far away from being secure, and advanced user could change the "readonly" field, for example by using ECMAScript Client Object Model.