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Tip: The string returned by the Trim Function does not contain the leading spaces or trailing space.
Next: To demonstrate, we print out the resulting value with square brackets denoting its first and last character positions.
VB.NET program that uses Trim function
Module Module1
Sub Main()
' Input string.
Dim value As String = " This is an example string. "
' Invoke Trim function.
value = value.Trim()
' Write output.
Console.Write("[")
Console.Write(value)
Console.WriteLine("]")
End Sub
End Module
Output
[This is an example string.]
VB.NET program that uses Trim on file lines
Imports System.IO
Module Module1
Sub Main()
' Read in the lines of a file.
For Each line As String In File.ReadAllLines("data.txt")
' The existing line.
Console.WriteLine("[{0}]", line)
' Trimmed line.
Dim trimmed As String = line.Trim()
Console.WriteLine("[{0}]", trimmed)
Next
End Sub
End Module
Output
[ Something]
[Something]
[Example ]
[Example]
[ Another]
[Another]
Tip: This ensures that whitespace, which is typically not meaningful in this context, will not disrupt accurate lookups.
Dictionary