C# Trim with Examples

Removing whitespace from a string with C# Trim

This tutorial shows you how to remove leading and trailing whitespace in a string using the string Trim method in C#.

More C# tutorials:

• C# String Contains
• C# String Length

Removing leading and trailing whitespace with the string Trim() method

Syntax:

string.Trim()

• Removes leading and trailing spaces in a string
• If there are multiple spaces, multiple spaces are removed
• Whitespace at other than the beginning and end of a string is not removed

Here is a sample cod of removing leading and trailing whitespace from a string:

using System;
namespace CSharpTrimExample
{
    class Program
    {
        static void Main(string[] args)
        {
            string  str = "  Learn C# programming online!  ";
            Console.WriteLine(str.Trim()); //Learn C# programming online!
        }
    }
}

Output:

Learn C# programming online!

Removing leading whitespace with TrimStart()

TrimStart removes leading whitespace from a string.

Syntax:

string.TrimStart()

Sample code:

using System;
namespace CSharpTrimExample
{
    class Program
    {
        static void Main(string[] args)
        {
            string  str = "  Learn C# programming online!  ";
            Console.WriteLine(str.TrimStart());
        }
    }
}

Output:

Learn C# programming online! 

Removing trailing spaces with TrimEnd()

TrimEnd removes trailing whitespace from a string.

Syntax:

string.TrimEnd()

Sample code:

using System;
namespace CSharpTrimExample
{
    class Program
    {
        static void Main(string[] args)
        {
            string  str = "  Learn C# programming online!  ";
            Console.WriteLine(str.TrimEnd());
        }
    }
}
 

Output:

  Learn C# programming online!

Removing specific characters at the beginning and end with Trim()

string.Trim(params char[] trimChars)

Here is a sample that removes certain characters from the beginning and the end:

using System;
namespace CSharpTrimExample
{
    class Program
    {
        static void Main(string[] args)
        {
            string  str = "##<=Learn C# programming online!=>###";
            char[] charArr = "##".ToCharArray();
            Console.WriteLine(str.Trim(charArr));
        }
    }
}

Output:

<=Learn C# programming online!=>