ViewScheduleCreateMaterialTakeoff Method

Creates a material takeoff.

Namespace: Autodesk.Revit.DB
Assembly: RevitAPI (in RevitAPI.dll) Version: 25.0.0.0 (25.0.0.0)
Syntax
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public static ViewSchedule CreateMaterialTakeoff(
	Document document,
	ElementId categoryId
)

Parameters

document  Document
The document to which the new schedule will be added.
categoryId  ElementId
The ID of the category whose elements will be included in the schedule, or InvalidElementId for a multi-category schedule.

Return Value

ViewSchedule
The newly created schedule.
Exceptions
ExceptionCondition
ArgumentException document is not a project document. -or- categoryId is not a valid category for a material takeoff.
ArgumentNullException A non-optional argument was null
ModificationForbiddenException The document is in failure mode: an operation has failed, and Revit requires the user to either cancel the operation or fix the problem (usually by deleting certain elements). -or- The document is being loaded, or is in the midst of another sensitive process.
ModificationOutsideTransactionException The document has no open transaction.
Remarks
A material takeoff is a schedule that displays information about the materials that make up elements in the model. Unlike regular schedules where each row (before grouping) represents a single element, each row in a material takeoff represents a single <element, material> pair.
See Also