CODEWITHSUNDEEP
c#
Thiago
Thiago

Reputation: 1182

Convert from object {object[]} to List<int>

I need to convert from 

object {object[]}

to

System.Collections.Generic.List<int>

Inside each element in the object array there is a object {int} element. I got this structure from a COM dll.

I was wondering how is the easiest way to do that. Thanks in advance!

Upvotes: 4

Views: 13213

Answers (3)

Rahul Sharma
Rahul Sharma

Reputation: 8311

My attempt on this converts the object array into a int array and checks if there are no null entries in the original object array. This is how I go on converting my object array to a List<int>:

using System.Linq;

//Your object array depends on your data source. I am taking an example of json data
object[] myObjectArray= jsonData["data"]; 

int[] myIntegerArray= myObjectArray.Where(x => x != null).Select(x => Convert.ToInt32(x)).ToArray();

List<int> myIntegerList= myIntegerArray.ToList();

Upvotes: 1

D Stanley
D Stanley

Reputation: 152634

try

List<int> intList = objectArray.Cast<int>().ToList();

Upvotes: 13

Freeman
Freeman

Reputation: 5801

List<Int> ObjToList(object[] objects)
{
    List<int> intList = new list<int>();
    foreach (object o in objects)
    {
        intList.Add((int)o);
    }
    return intList;
}

be very sure that all your objects in the array are of type int to avoid problems

Upvotes: 3

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