Convert array of integers to comma-separated string

Question

It s a simple question  I am a newbie in C   how can I perform the following   I want to convert an array of integers to a comma-separated string    I have   int   arr   new int 5   1 2 3 4 5     I want to convert it to one string  string   gt   1 2 3 4 5

User · Answer

You can have a pair of extension methods to make this task easier:

public static string ToDelimitedString<T>(this IEnumerable<T> lst, string separator = ", ")
{
    return lst.ToDelimitedString(p => p, separator);
}

public static string ToDelimitedString<S, T>(this IEnumerable<S> lst, Func<S, T> selector, 
                                             string separator = ", ")
{
    return string.Join(separator, lst.Select(selector));
}

So now just:

new int[] { 1, 2, 3, 4, 5 }.ToDelimitedString();

User · Answer

var result   string Join      arr     This uses the following overload of string Join   public static string Join lt T gt  string separator  IEnumerable lt T gt  values

User · Answer

Use LINQ Aggregate method to convert array of integers to a comma separated string  var intArray   new    1 2 3 4   string concatedString   intArray Aggregate  a  b    gt Convert ToString a         Convert ToString  b    Response Write concatedString     output will be     1 2 3 4   This is one of the solution you can use if you have not  net 4 installed

User · Answer

NET 4  string Join      arr     NET earlier  string Join      Array ConvertAll arr  x   gt  x ToString

User · Answer

int   arr   new int 5   1 2 3 4 5     You can use Linq for it  String arrTostr   arr Select a   gt  a ToString    Aggregate  i  j    gt  i         j

[c#] Convert array of integers to comma-separated string

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