---
title: "Selecting Drop Down List Items Using a Check Box"
slug: "selecting-dropdown-list-items"
updated: 2021-03-12T15:05:30Z
published: 2021-03-12T15:07:20Z
canonical: "documentation.decisions.com/selecting-dropdown-list-items"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://documentation.decisions.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Selecting Drop Down List Items Using a Check Box

Example Lab ArticleWhile Example Lab projects are resources for public use, articles and assets are not actively maintained. Screenshots and features are from the specified version below. These references may become dated as new versions are released.

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## Overview

| ## Example Lab Details |
| --- |
| **Version** | 6.9.2 |
| **Root Folder** | Example Lab - Change Text Values |
| **Modules** | None |
| **Dependencies** | None |

This Example Lab project demonstrates how to use a checkbox to fill a textbox with a specific number and select the matching number on a dropdown list.

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## Explanation

This project works by using a **data Flow** inside the Form. This data Flow runs a **Rule** that checks if the checkbox in the Form is checked or unchecked. If the checkbox is checked the Rule will return true and create a new output called "Result" with the value "3". This value is then passed to the Flow output which will then be used by the dropdown list and textbox. If the checkbox is not checked the rule returns false and nothing happens. This data Flow is run each time the value of the checkbox is changed by the user.

Reference Articles[Using Rules](https://documentation.decisions.com/docs/using-rule-steps-in-a-flow) [Data Flows](https://documentation.decisions.com/docs/using-flow-data-form)

![](https://cdn.document360.io/6ef8bcc1-6489-4486-9ad1-83acff7e5df0/Images/Documentation/image-711.png)

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## Project Download

The examples attached were developed to be instructional and were not developed as officially supported components. For more information or to engage our service team to develop fully supported, production quality solutions, please contact services@decisions.com. Import the project below to a Decisions environment on version 6.9.2 or later using our [Importing/Exporting](https://documentation.decisions.com/docs/exporting-and-importing-overview) article.  
  
  
[ExampleLab[ChangeTextValues].zip](https://cdn.document360.io/6ef8bcc1-6489-4486-9ad1-83acff7e5df0/Images/Documentation/ExampleLab%5BChangeTextValues%5D.zip)

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