Different Ways to Concatenate Strings in C#

 

1. Using the ‘+’ operator:

string concatenatedOne = "This " + "is " + "a " + "concatenated " + "string.";

 

 

2. Using the static method called Concat where you can pass in an IEnumerable of string

 

IEnumerable strings = new List() {"This ",  "is ", "a ", "concatenated ", "string." };

string concatenatedTwo = string.Concat(strings);

 

 

3. Using the static method called Join. The first parameter in the Join method is the separator which will be added in between the individual string elements

 

string concatenatedThree = string.Join(" ", "This", "is", "a", "concatenated", "string.");

 

 

4. Using the Append method in case of String Builder

 

StringBuilder sb = new StringBuilder();

sb.Append("This ").Append("is ").Append("a ").Append("concatenated ").Append("string.");

string concatenatedFour = sb.ToString();

 

 

5. Using the string.Format method where you can supply a format as the first parameter and a params array of the elements that will be substituted into the format

 

string concatenatedFive = string.Format("{0} {1} {2} {3} {4}", "This", "is", "a", "concatenated", "string.");

 

 

 

6. Using the $ operator

 

public class Organization

{

    public string Name { get; }

 

    public Organization (string employeeName)

    {

        Name = employeeName;

    }

 

    public string GetNickName()

    {

        return Name.ToUpper();

    }

}

      Organization employee = new Organization ("Meena");

 

string concatenatedSix = $"The employee’s name is {employee.Name} and has a nick name of {employee.GetNickName()}.";