从数字范围创建字符串

Question

Is there a way to make this a one liner?

List<string> ids = new List<string>(result.Count);
for(int i = 0; i < result.Count; i++)
    ids.Add(i.ToString());
string reportIds = String.Join(",", ids);

I'm pretty sure there's a way with linq, but I can't figure out

Answer 1

string.Join() actually takes IEnumerable<object> in one of its overloads so there is no need to call ToString() yourself. Here is the complete one-liner using Enumerable.Range() :

var reportIds = string.Join(",", Enumerable.Range(0, result.Count));

Answer 2

string reportIds = String.Join(",",Enumerable.Range(0, result.Count));

Answer 3

string str = String.Join(",", Enumerable.Range(0, count).Select(n => n.ToString()));