FilteredElementCollector.OfCategoryId

Public Class

Applies an ElementCategoryFilter to the collector.

Assembly: RevitAPI (in RevitAPI.dll) Version: 25.0.0.0 (25.0.0.0)

Syntax

public FilteredElementCollector OfCategoryId(
  ElementId categoryId
)

Parameters

categoryId ElementId

The category id.

Return Value

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

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.