File Management

File-related actions include:

• Upload file
• Download file/image/bitmap

Upload File

Introduction

The Upload File action allows users to select and upload files from their device. Supported file types include PDF, Word, Excel, and audio files.

Scenario

For example, in a recruitment project, you can add a button to the page and configure it with the upload action, allowing applicants to upload their resumes.

How to Configure

1. Add a Page Variable
   Add a page variable of type “file” to the page. This variable will store the uploaded file.

2. Add the Upload File Action
   Add the Upload File action to the component and assign the uploaded file to the page variable created in step 1.

Add File Variable	Assign Uploaded File

Notes

1. Only one file can be uploaded at a time. Uploading another file will overwrite the previous one.
2. File preview is not supported.
3. If there are multiple page variables, rename them for clarity.
4. Since there is no system notification for a successful upload, it is recommended to add a Show Toast action under “Action on Success” to notify the user. Alternatively, use a Conditional Container to display a success message.

Download File/Image/Bitmap

Introduction

The Download File action allows users to download a file stored in the database to their local device.

How to Configure

1. Identify a Data Source
   Set up a data source on the page that requests the data table containing the file. Limit the result to one record and adjust filter conditions as needed.

   

2. Add the Download Action

   • Add the Download File action to the component (usually a button), and bind the file data from the page data.
   • For Download Bitmap, after converting a view component to a bitmap using the “View to Bitmap” action, the result data will be generated automatically. Add the Download Bitmap action under “on Success” and bind the result data.