Is creating SharePoint sandbox field types possible?

Question

I want to create custom field type for SharePoint Online. Therefore, AFAIK, it must be sandbox solution. Is there any possibility to create this? Or something that allows me to work on "single item level" on the list (not in edit form but on the list). Maybe some option in item menu or sth?

Answer 1

you have to remember that SharePoint Sandbox Model doesn't offer custom FieldTypes.

There is a really good introduction for Sandboxed SharePoint Solutions on MSDN (http://goo.gl/uXGLo).

SPIs like

• ContentTypes
• SiteColumns
• Lists

could easily be created by using CAML (SharePoint XML-DSL) or by custom .NET Code