Field.FromBaseType property

Gets a Boolean value that indicates whether the field derives from a base field type.

Namespace:  Microsoft.SharePoint.Client
Assembly:  Microsoft.SharePoint.Client (in Microsoft.SharePoint.Client.dll)


Public ReadOnly Property FromBaseType As Boolean
Dim instance As Field
Dim value As Boolean

value = instance.FromBaseType
public bool FromBaseType { get; }

Property value

Type: System.Boolean
Returns Booleantrue if the field derives from a base field type; otherwise, returns false.


The base field types are defined in FLDTYPES.XML, which defines the default schema for lists. Every built-in list in a site inherits its schema from a base type. If the FromBaseType property returns true, the field cannot be converted to another field type, nor can it be deleted.


If you want to prevent a field from being modified or deleted, set the Sealed property to true.

See also


Field class

Field members

Microsoft.SharePoint.Client namespace