C# List<string> to string with delimiter

Question

C# List<string> to string with delimiter

Is there a function in C# to quickly convert some collection to string and separate values with delimiter?

For example:

List<string> names --> string names_together = "John, Anna, Monica"

string list c#

4 years ago by Bharatgxwzm

2 Answers

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**rahul07** · Answer 1 · 2021-06-18T12:40:41

You can use String.Join. If you have a List<string> then you can call ToArray first:



List<string> names = new List<string>() { "John", "Anna", "Monica" };

var result = String.Join(", ", names.ToArray());

In .NET 4 you don't need the ToArray anymore, since there is an overload of String.Join that takes an IEnumerable<string>.

**pankajshivnani123** · Answer 2 · 2021-06-19T12:07:55

You can also do this with linq if you'd like



var names = new List<string>() { "John", "Anna", "Monica" };

var joinedNames = names.Aggregate((a, b) => a + ", " + b);

Although I prefer the non-linq syntax in Quartermeister's answer and I think Aggregate might perform slower (probably more string concatenation operations).

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C# List<string> to string with delimiter

2 Answers

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