> For the complete documentation index, see [llms.txt](https://datashapes.gitbook.io/primer/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://datashapes.gitbook.io/primer/revit/filter.isapplied.md).

# Filter.IsApplied

## 1. Description

This node indicates whether a filter is applied on a given view.

## 2. Input

* **ParameterFilterElement(s)**

This node takes view filters as inputs.

## 3. Output

* **bool**

The node retrieves a boolean indicating if a filter is applied in the given view. 

![](https://238629208-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LO8n4ithPJG3iCqU7ir%2F-LYkcFTnowP2xvorn59q%2F-LYkc_uQNeuQvYjjLYrG%2Fimage.png?alt=media\&token=4ffcc2f7-5001-4281-a33b-9e563998faca)