Namespace: Autodesk.Revit.DB Class: FilteredElementCollector

FilteredElementCollector.OfCategoryId

Method

Description:
Applies an ElementCategoryFilter to the collector.

Remarks:
Only elements of this category id will pass the collector. If you have an active iterator to this collector it will be stopped by this call.

Syntax

public FilteredElementCollector OfCategoryId(
	ElementId categoryId
)

Public Function OfCategoryId ( 
	categoryId As ElementId
) As FilteredElementCollector

public:
FilteredElementCollector^ OfCategoryId(
	ElementId^ categoryId
)

member OfCategoryId : 
        categoryId : ElementId -> FilteredElementCollector

Parameters

Parameter	Type	Description
categoryId	ElementId	The category id.

Return Value

Type	Description
FilteredElementCollector	A handle to this collector. This is the same collector that has just been modified, returned so you can chain multiple calls together in one line.

Exceptions

Exception	Condition
ArgumentNullException	A non-optional argument was null