# On Dropdown Active Value Change

## Overview

![The On Dropdown Active Value Change Node.](https://2561100106-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Ff6JZovzOqBctA4C1o76u%2Fuploads%2Fgit-blob-b7142343cbcbcf5707a1f997cd13a1358be9c949%2Fondropdownactivevaluechange.png?alt=media)

The **On Dropdown Active Value Change Node** is an **Event Listener** **Node** used for executing a **Logic Branch** when the current active value of a [**Dropdown Object**](https://docs.incari.com/incari-studio/2023.2/objects-and-types/scene2d-objects/gui/dropdown) changes.

[**Scope**](https://docs.incari.com/incari-studio/2023.2/overview#scopes): **Scene**, **Prefab**.

## Inputs

| Input             | Type         | Description                                                                              |
| ----------------- | ------------ | ---------------------------------------------------------------------------------------- |
| *Pulse Input* (►) | **Pulse**    | A standard **Input Pulse**, to trigger the execution of the **Node**.                    |
| `Object ID`       | **ObjectID** | The **Dropdown Object** in which a change of active value triggers the **Logic Branch**. |
| `Subscribe` (►)   | **Pulse**    | An **Input Pulse** that needs to be triggered to start listening to the **Event**.       |

## Outputs

| Output             | Type         | Description                                                                                                                            |
| ------------------ | ------------ | -------------------------------------------------------------------------------------------------------------------------------------- |
| *Pulse Output* (►) | **Pulse**    | A standard **Output Pulse**, to move onto the next **Node** along the **Logic Branch**, once this **Node** has finished its execution. |
| `Value`            | **String**   | The new active value of the **Dropdown Object**.                                                                                       |
| `Object ID`        | **ObjectID** | The ID of the given **Dropdown Object**.                                                                                               |

## See Also

* [**Set Active Dropdown Value**](https://docs.incari.com/incari-studio/2023.2/toolbox/incari/object/set-active-dropdown-value)