Convert List to delimited string list [duplicate]

Answer 1

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

var data = new List { 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();