# On Dropdown Active Value Change

## Overview

![The On Dropdown Active Value Change Node.](/files/cIpMqKUw1P25eIA8J2ie)

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**](/incari-studio/objects-and-types/scene2d-objects/gui/dropdown.md) changes.

[**Scope**](/incari-studio/toolbox/overview.md#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://github.com/cgi-studio-gmbh/incari-doc/blob/2025.1/toolbox/incari/object/set-active-dropdown-value.md)


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