Convert List to delimited string list [duplicate]

Answer 1

string.Join(";", myList.ToArray());

Answer 2

Just use the join

string combinedString = String.Join(";", arrayName);

Answer 3

You can also use Enumerable.Aggregate which can give extra flexibility.

var data = new List<int> { 1,2,3 };
var sb = new StringBuilder(100);

// do some other stuff with sb

sb = data.Aggregate(sb, (b, d) => b.Append(d).Append(';'));
if( data.Count > 0 ) sb.Length--;

//do some more stuff with sb

var str = sb.ToString();

Answer 4

UPDATED to use List<int> instead of List<string>

Use string.Join:

List<int> data = ..;
var result = string.Join(";", data); // (.NET 4.0+)
var result = string.Join(";", data.Select(x => x.ToString()).ToArray()); // (.NET 3.5)

Answer 5

List<String> list = new List<String>() { "A", "B", "C", "D", "E" };
String joindString1 = String.Join(";", list.ToArray());
String joindString2 = list.Aggregate((s1, s2) => s1 + ";" + s2);