SPField.CanBeDeleted property

Gets a Boolean value that indicates whether the field can be deleted.

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

public bool CanBeDeleted { get; }

Property value

Type: System.Boolean
true if the field can be deleted; otherwise, false.

This property returns the value of the AllowDeletion property if it has a value. If AllowDeletion does not have a value, CanBeDeleted returns false if either the FromBaseType property or the Sealed property return true.