C# Trim() Method

The Trim() method in C# is used to return a new string in which all leading and trailing occurrences of a set of specified characters from the current string are removed.

Syntax

public string Trim ();
public string Trim (params char[] trimChars);

Above, the trimChars parameter is an array of Unicode characters to remove, or null.

Example

using System;
using System.Globalization;
public class Demo {
   public static void Main(String[] args) {
      string str1 = " JackSparrow!";
      string str2 = " @#$PQRSTUV!";
      Console.WriteLine("String1 = "+str1);
      Console.WriteLine("String1 (after trim) = "+str1.Trim());
      Console.WriteLine("String1 ToUpper = "+str1.ToUpper(new CultureInfo("en-US", false)));
      Console.WriteLine("String1 Substring from index4 = " + str1.Substring(2, 2));
      Console.WriteLine("\n\nString2 = "+str2);
      Console.WriteLine("String2 ToUpper = "+str2.ToUpper(new CultureInfo("en-US", false)));
      Console.WriteLine("String2 Substring from index2 = " + str2.Substring(0, 5));
   }
}

Output

String1 =         JackSparrow!
String1 (after trim) = JackSparrow!
String1 ToUpper =         JACKSPARROW!
String1 Substring from index4 =  

String2 =     @#$PQRSTUV!
String2 ToUpper =     @#$PQRSTUV!
String2 Substring from index2 =     @

Example

using System;
public class Demo {
   public static void Main(String[] args) {
      string str = "JackSparrow!";
      char[] arr = { 'J', 'a'};
      Console.WriteLine("String = "+str);
      Console.WriteLine("String (after trim) = " + str.Trim(arr));
   }
}

Output

String = JackSparrow!
String (after trim) = ckSparrow!