Trim, LTrim, and RTrim Functions

Returns a string that contains a copy of a specified string without leading spaces (LTrim), without trailing spaces (RTrim), or without leading or trailing spaces (Trim).

Public Shared Function LTrim(ByVal str As String) As String
Public Shared Function RTrim(ByVal str As String) As String
Public Shared Function Trim(ByVal str As String) As String

• str
  Required. Any valid String expression. If str equals Nothing, the function returns an empty string.

The LTrim, RTrim, and Trim functions remove spaces from the ends of strings. To remove other forms of white space, such as tab characters, use the String.Trim method.

This example uses the LTrim function to remove leading spaces and the RTrim function to remove trailing spaces from a string variable. It uses the Trim function to remove both types of spaces.

' Initializes string. 
Dim TestString As String = "  <-Trim->  " 
Dim TrimString As String 
' Returns "<-Trim->  ".
TrimString = LTrim(TestString)
' Returns "  <-Trim->".
TrimString = RTrim(TestString)
' Returns "<-Trim->".
TrimString = LTrim(RTrim(TestString))
' Using the Trim function alone achieves the same result. 
' Returns "<-Trim->".
TrimString = Trim(TestString)

Namespace:Microsoft.VisualBasic

**Module:**Strings

Assembly: Visual Basic Runtime Library (in Microsoft.VisualBasic.dll)

String Manipulation Summary

Left Function (Visual Basic)

Right Function (Visual Basic)

Trim