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SPField.FromBaseType Property

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

Namespace:  Microsoft.SharePoint
Assembly:  Microsoft.SharePoint (in Microsoft.SharePoint.dll)
Available in Sandboxed Solutions: Yes
Available in SharePoint Online

Syntax

'Declaration
<ClientCallableAttribute> _
Public ReadOnly Property FromBaseType As Boolean
    Get
'Usage
Dim instance As SPField
Dim value As Boolean

value = instance.FromBaseType
[ClientCallableAttribute]
public bool FromBaseType { get; }

Property Value

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

Remarks

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.

Tip

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

See Also

Reference

SPField Class

SPField Members

Microsoft.SharePoint Namespace

Sealed