BaseType element (Site)
Applies to: SharePoint 2016 | SharePoint Foundation 2013 | SharePoint Online | SharePoint Server 2013
Defines the default schema (for example, the fields) that all lists derived from the base type must contain. Every list in a SharePoint website inherits its schema from a base type.
<BaseType Image = "Text" Title = "Text" Type = "Text"> </BaseType>
Elements and attributes
The following sections describe attributes, child elements, and parent elements.
||Optional Text. Sets the image used by a list base type in the Lists page (_layouts/viewlsts.htm). However, all SharePoint list definitions (such as for Announcements or Events) provide their own images so that, in practice, this attribute is never used.
||Required Text. The name of the base type.
||Required Text. Unique ID for the base type. The following values are possible for built-in base types:
0 — Custom List
1 — Document Library
2 — Not used
3 — Obsolete. Use 0 for discussion boards.
4 — Surveys
5 — Issues List
- Minimum: 0
- Maximum: Unbounded
The fields defined in a base type may not be deleted from a derived list without breaking the list (for example, a document library will not function without the file name column), although fields may be added to the list.
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