Convert a list<int> to a joined string of ints?
I have an int array with the value 3,99,6. How do i convert the array into开发者_高级运维 the string 3,99,6
with linq?
int[] list = new [] {3, 99, 6};
string s = string.Join(",", list.Select(x => x.ToString()).ToArray());
Edit, C# 4.0
With C# 4.0, there is another overload of string.Join
, which finally allows passing an IEnumerable<string>
or IEnumerable<T>
directly. There is no need to create an Array, and there is also no need to call ToString()
, which is called implicitly:
string s = string.Join(",", list);
With explicit formatting to string:
string s = string.Join(",", list.Select(x => x.ToString(/*...*/));
Stefan's solution is correct, and pretty much required for .NET 3.5. In .NET 4, there's an overload of String.Join
which takes an IEnumerable<string>
so you can use:
string s = string.Join(",", list.Select(x => x.ToString());
or even just:
string s = string.Join(",", list);
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