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Edge HMI

FileDelete

  • Last UpdatedOct 29, 2026
  • 2 minute read

FileDelete is a built-in function that deletes a specified file.

Function

Group

Execution

String Exp.

Windows

Windows Embedded

IoT View

Thin Clients

Mobile Access

FileDelete

File

Synchronous

No

Supported

Supported

Supported

Executed on Server (see Notes below)

Supported

Syntax

FileDelete(strFile)

FileDelete ( strFile )

strFile

The file path and name of the file to be deleted.

Note: Follow the conventions of the target platform for the file path and name, and separators. For example, a file path in Windows starts with a drive letter and uses backward slashes as separators (C:\path\to\file), while a file path in Linux starts at the root directory and uses forward slashes as separators (/path/to/file).

Return value

This function returns one of the following possible values:

Value

Description

0

Failure: file not deleted.

1

Success: file deleted.

Notes

By default, this function is executed on the project runtime server even when it is called in a screen on a project thin client, which means it only affects directories and files that are located on the server and all paths must be specified in that context. You can change the default behavior to force this function to be executed on the client where it is called, but if you do so, you must keep in mind that the change will affect not just this function but also several other File functions. To change the behavior of these functions, use a text editor to open your project file (<project name>.app) and then edit the following property:

[Options]

ExecuteFileFunctionsOnClient=1

Examples

Delete a file named ReadMe.txt in Windows:

FileDelete("C:\Users\Me\Documents\ReadMe.txt")

Delete a file named readme.txt in Linux:

FileDelete("/home/me/readme.txt")

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