如何将 string[] 转换为列表<int> ?

Question

How I can convert an array of strings to list of int? (without converting them one by one with my own method)

From searching in google I've seen methods named ToList() and ConvetAll() but I cant typed them, why is that?

What I've tried is:

new list<int>((int[])s.Split(','));

and I'm getting error that i cant convert string[] to int[] :(

Answer 1

There's a two-step process involved here. The first is to convert the strings to an integer, then convert the array to a list. If you can use LINQ, the easiest way is to use:

stringArray.Select(x => Int32.Parse(x)).ToList();

Answer 2

从您的代码中获取提示：

var listOfInts = s.Split(',').Select(Int32.Parse).ToList();

Answer 3

Try Using

int x = 0; 

var intList= stringList.Where(str => int.TryParse(str, out x)).Select(str => x).ToList();

Answer 4

public List<int > M1()
{
    string[] s =(file path));
    Array.Sort(s);
    var c = new List<int>();
    foreach(string x in s)
    {
        c.Add(Convert.ToInt32(x));
    }
    return c;
}

Answer 5

use following:

var list = s.Select(Int32.Parse).ToList();

Answer 6

Try it:

 var selectedEditionIds = input.SelectedEditionIds.Split(",").ToArray()
                        .Where(i => !string.IsNullOrWhiteSpace(i) 
                         && int.TryParse(i,out int validNumber))
                        .Select(x=>int.Parse(x)).ToList();

Answer 7

For VB.NET, I had to do it in a loop

Dim myList As New List(Of Integer)
For Each item As String In s.Split(",")
    myList.Add(Val(item))
Next

May have been able to work it out with some inbuilt function but didn't want to spend too much time on it.

Answer 8

Assuming values is your list of strings:

int[] ints = new int[values.Count];

int counter = 0;
foreach (string s in values) {
    ints[counter++] = int.Parse(s);
}

Don't overcomplicate yourself :)

Answer 9

var s = "1,2,3,4,5,6,7,8,9";
var result = s.Split(',').Select(Convert.ToInt32).ToList();