C# String Trim Method (TrimStart, TrimEnd)

In c#, the string Trim method is useful to remove all leading and trailing whitespace characters from the specified string object.

 

Using the Trim() method, we can also remove all occurrences of specified characters from the start and end of the current string.

 

Following is the pictorial representation of using the string Trim() method to remove all the leading and trailing whitespaces from the defined string in the c# programming language.

 

C# String Trim Method Representation Diagram

 

If you observe the above diagram, we defined a string called “Welcome to Tutlane” and by using the string Trim() method we removed all leading and trailing white spaces from a defined string object.

C# String Trim Method Syntax

Following is the syntax of defining a string Trim method to remove all the leading and trailing whitespaces or specified characters from the string object in the c# programming language.

 

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

If you observe the above syntaxes, the first syntax is used to remove all whitespaces from the specified string's start and end, and it won’t take any parameters.

 

The second syntax is used to remove leading and trailing occurrences of specified characters in an array from the current string object.

C# String Trim() Method Example

Following is the example of using the string Trim() method to remove the starting and ending of whitespaces or specified characters from the string object in the c# programming language.

 

using System;

namespace Tutlane
{
    class Program
    {
        static void Main(string[] args)
        {
           // Trim Whitespaces
           string str1 = " Welcome";
           string str2 = " to ";
           string str3 = " Tutlane";
           Console.WriteLine("Before Trim: {0} {1} {2}", str1, str2, str3);
           Console.WriteLine("After Trim: {0} {1} {2}", str1.Trim(), str2.Trim(), str3.Trim());
           char[] trimChars = { '*', '@', ' ' };
           // Trim with Characters
           string str4 = "@@** Suresh Dasari **@";
           Console.WriteLine("Before Trim: {0}", str4);
           Console.WriteLine("After Trim: {0}", str4.Trim(trimChars));
           Console.WriteLine("\nPress Enter Key to Exit..");
           Console.ReadLine();
        }
    }
}

If you observe the above example, we used a string Trim() method with or without characters to remove all leading and trailing whitespaces and defined characters from the string object.

 

When you execute the above c# program, you will get the result as shown below.

 

C# String Trim Method Example Result

 

If you observe the above result, the string Trim() method removes all trailing and leading whitespaces and sets of characters from the string object based on our requirements.

C# String TrimStart() Method

In c#, the string TrimStart() method is used to remove all leading occurrences of whitespaces or specified characters in an array from the string object.

 

Following is the example of using the TrimStart() method to remove all leading/starting occurrences of whitespaces or specified characters from the string object.

 

using System;

namespace Tutlane
{
    class Program
    {
        static void Main(string[] args)
        {
           // Trim Whitespaces
           string str1 = " Welcome";
           string str2 = " to ";
           string str3 = " Tutlane";
           Console.WriteLine("Before Trim: {0} {1} {2}", str1, str2, str3);
           Console.WriteLine("After Trim: {0} {1} {2}", str1.TrimStart(), str2.TrimStart(), str3.TrimStart());
           char[] trimChars = { '*', '@', ' ' };
           // Trim with Characters
           string str4 = "@@** Suresh Dasari **@";
           Console.WriteLine("Before Trim: {0}", str4);
           Console.WriteLine("After Trim: {0}", str4.TrimStart(trimChars));
           Console.WriteLine("\nPress Enter Key to Exit..");
           Console.ReadLine();
        }
    }
}

If you observe the above example, we used a TrimStart() method to remove all leading occurrences of whitespaces and specified characters in a string object.

 

When you execute the above c# program, we will get the result as shown below.

 

C# String Trimstart Method Example Result

 

If you observe the above result, the string TrimStart() method has removed only leading or starting whitespaces and defined characters from the given string object.

C# String TrimEnd() Method 

In c#, the string TrimEnd() method is used to remove all trailing or ending occurrences of whitespaces or specified characters in an array from the string object.

 

Following is the example of using the TrimEnd() method to remove all trailing or ending occurrences of whitespaces or specified characters from the string object.

 

using System;

namespace Tutlane
{
    class Program
    {
        static void Main(string[] args)
        {
           // Trim Whitespaces
           string str1 = " Welcome ";
           string str2 = " to ";
           string str3 = " Tutlane ";
           Console.WriteLine("Before Trim: {0} {1} {2}", str1, str2, str3);
           Console.WriteLine("After Trim: {0} {1} {2}", str1.TrimEnd(), str2.TrimEnd(), str3.TrimEnd());
           char[] trimChars = { '*', '@', ' ' };
           // Trim with Characters
           string str4 = "@@** Suresh Dasari **@";
           Console.WriteLine("Before Trim: {0}", str4);
           Console.WriteLine("After Trim: {0}", str4.TrimEnd(trimChars));
           Console.WriteLine("\nPress Enter Key to Exit..");
           Console.ReadLine();
        }
    }
}

If you observe the above example, we used a TrimEnd() method to remove all trailing occurrences of whitespaces and specified characters in a string object.

 

When you execute the above c# program, we will get the result as shown below.

 

C# String TrimEnd Method Example Result

 

If you observe the above result, the string TrimEnd() method has removed only trailing or ending whitespaces and defined characters from the given string object.

 

This is how we can use string Trim(), TrimStart(), TrimEnd() methods in c# to trim string objects in c# programming language based on our requirements.