Database.com Metadata API Developer's Guide - Salesforce.com

Metadata TypesLayoutField NamelayoutItemsreservedField TypeLayoutItem[]stringDescriptionThe individual items within a column (ordered from top to bottom).This field is reserved for Database.com. The field resolves an issuewith some SOAP libraries. Any value entered in the field is ignored.LayoutItemLayoutItem represents the valid values that define a layout item. An item must have only one of the following set: component,customLink, field, scontrol, page, reportChartComponent.Field NamebehaviorcomponentField TypeUiBehavior (enumeration of typestring)stringDescriptionDetermines the field behavior. Valid string values:• Edit - The layout field can be edited but is notrequired• Required - The layout field can be edited andis required• Readonly - The layout field is read-onlyReference to a component. Value must besfa:socialCard.This field is available in API version 30.0 and later.This is only allowed inside aRelatedContentItem. sfa:socialCard is onlysupported on page layouts for contacts, accounts, andleads.customLinkemptySpacefieldheightpagereportChartComponentscontrolshowLabelshowScrollbarswidthstringbooleanstringintstringReportChartComponentLayoutItemstringbooleanbooleanstringThe customLink reference. This is only allowedinside a CustomLink layoutSection.Controls if this layout item is a blank space.The field name reference, relative to the layout object,for example Description or MyField__c.For s-control and pages only, the height in pixels.Reference to a Visualforce page.Refers to a report chart that you can add to a standardor custom object page.Reference to an s-control.For s-control and pages only, whether or not to showthe label.For s-control and pages only, whether or not to showscrollbars.For s-control and pages only, the width in pixels orpercent. Pixel values are simply the number of pixels,for example, 500. Percentage values must includethe percent sign, for example, 20%.118