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Edge HMI

StrTrim

  • Last UpdatedOct 29, 2026
  • 1 minute read

Removes spaces from a string.

Function

Group

Execution

String Exp.

Windows

Windows Embedded

IoT View

Thin Clients

Mobile Access

StrTrim

String

Synchronous

Yes

Supported

Supported

Supported

Supported

Supported

Syntax

StrTrim(strReference, optNumFlag)

strReference

A string, or a string tag that contains the source string.

optNumFlag

An optional integer or integer tag:

Value of optNumFlag

Description

0

Removes all spaces from both the beginning and the end of the string.

1

Removes all spaces only from the beginning of the string.

2

Removes all spaces only from the end of the string.

3

Removes all spaces except for single spaces between words.

Note: If no value is given for optNumFlag, then 0 is the default.

Returned value

This function returns a string equal to strReference minus the removed characters.

Examples

Tag Name

Expression

Tag

StrTrim(" Studio version 7.0 ") // Return value = "Studio version 7.0"

Tag

StrTrim(" Studio version 7.0 ", 0) // Return value = "Studio version 7.0"

Tag

StrTrim(" Studio version 7.0 ", 1) // Return value = "Studio version 7.0 "

Tag

StrTrim(" Studio version 7.0 ", 2) // Return value = " Studio version 7.0"

Tag

StrTrim(" Studio version 7.0 ", 3) // Return value = "Studio version 7.0"

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