Hiding a SharePoint Custom Field Type in Edit and Create mode

Answer 1

Generally you set the SPField.ReadOnlyField property to True to achieve the desired behaviour for any field. (Don't forget to SPField.Update accordingly!) There is an equivalent CAML attribute for list definitions, I believe.

That said, in your control class deriving from BaseFieldControl, you might just override the RenderFieldForInput() method and not call the base implementation to ensure nothing is rendered during Create or Edit. However, this would still render the field's table row in the form, which is probably not what you want. So to enforce the desired behaviour, use ReadOnlyField and override Update() in your SPField (not field control) class to always have it set to True.

Answer 2

It might be easier to just change this on a list-by-list basis by going to the Advanced section of the List Settings, setting Allow management of content types? to Yes, and then editing your content type to change the value of your field to 'hidden'.

Answer 3

Take a look at this blog post. I think it will give you some ideas. The concept uses different rendering templates based on the mode.

http://sharepoint.nailhead.net/2008/04/creating-rendering-template-that.html

Answer 4

Did you try and set the field as hidden? http://msdn.microsoft.com/en-us/library/microsoft.sharepoint.spfield.hidden.aspx

Custom FORMS pages for new item and edit item (NewForm.aspx and EditForm.aspx) would be another way to achieve this.

Answer 5

Try this too, How to hide columns in SharePoint