Represents a single column (also known as field) reference that is included in a content type.
The SPFieldLink type exposes the following members.
|AggregationFunction||Gets or sets the aggregation function for the field. Used to promote and demote properties in XML documents.|
|Customization||Gets or sets a string in Collaborative Application Markup Language (CAML) that defines custom field properties.|
|DisplayName||Gets or sets the display name for the field reference.|
|Hidden||Gets or sets a Boolean value that specifies whether the field is displayed in forms that can be edited.|
|Id||Gets the GUID that identifies the field reference.|
|Name||Gets the internal name of the field reference object.|
|PIAttribute||Gets or sets the attribute of the processing instruction (specified by the PITarget property) to use for document property promotion and demotion.|
|PITarget||Gets or sets the name of the processing instruction in an XML document of this content type, which can then be used to promote and demote property values.|
|PrimaryPIAttribute||Gets or sets the attribute of the primary processing instruction (specified by the PrimaryPITarget property) that is used to promote and demote the document property.|
|PrimaryPITarget||Gets or sets the name of the primary processing instruction in an XML document of the specified content type, which is then used to promote and demote the document property.|
|ReadOnly||Gets and sets a value that indicates whether the SPFieldLink object can be modified.|
|Required||Gets or sets a value that indicates whether the column that is referenced must have a value.|
|SchemaXml||Gets the schema in Collaborative Application Markup Language (CAML) that defines the field reference.|
|XPath||Gets or sets an XML Path Language (XPath) expression that represents the location of a property within an XML document of this content type.|