Resize an array and return it to main function

[x69chen]

Hi people I found I can only reset the values in the array but I can resize it in a new method and return it back to main method,

static void Main()
        {
            int[] myArray = new int[4];
            setLength(myArray, 8);
        }

        static void setLength(int[] myArray, int length)
        {
            Array.Resize(ref myArray, length);
        }

This is the code what I wrote, it works at the end of the setLength method,
but after it turns back to the main mathod, the array returns to the original one...

Could someone help me please?

[Mitja Bonca]

You didnt set the return type to the setLenght method. You have to change the code to:

static void Main()
        {
            int[] myArray = new int[4];
            myArray = setLength(myArray, 8);
        }

        static int[] setLength(int[] myArray, int length)
        {
            Array.Resize(ref myArray, length);
            return myArray;
        }

or you can use ref keyword, to return, but I would suggest you to use upper example:

static void Main()
        {
            int[] myArray = new int[4];
            setLength(ref myArray, 8);
        }

        static void setLength(ref int[] myArray, int length)
        {
            Array.Resize(ref myArray, length);
        }

[x69chen]

You didnt set the return type to the setLenght method. You have to change the code to:

static void Main()
        {
            int[] myArray = new int[4];
            myArray = setLength(myArray, 8);
        }

        static int[] setLength(int[] myArray, int length)
        {
            Array.Resize(ref myArray, length);
        }

or you can use ref keyword, to return, but I would suggest you to use upper example:

static void Main()
        {
            int[] myArray = new int[4];
            setLength(ref myArray, 8);
        }

        static void setLength(ref int[] myArray, int length)
        {
            Array.Resize(ref myArray, length);
        }

Thanks so much man, the second solution works
lol I forgot "ref"...

Actually I tried your first solution before, but it didn't work,
the array still return to the original one after it goes back to main method...

anyway, thanks so much

[Mitja Bonca]

UPS, so sorry.. I guess Im already asleeping here.
I forgot a return keyword:

static void Main()
        {
            int[] myArray = new int[4];
            myArray = setLength(myArray, 8);
        }

        static int[] setLength(int[] myArray, int length)
        {
            Array.Resize(ref myArray, length);
            return myArray;
        }

This will do the trick mate.
good night.

[x69chen]

UPS, so sorry.. I guess Im already asleeping here.
I forgot a return keyword:

static void Main()
        {
            int[] myArray = new int[4];
            myArray = setLength(myArray, 8);
        }

        static int[] setLength(int[] myArray, int length)
        {
            Array.Resize(ref myArray, length);
            return myArray;
        }

This will do the trick mate.
good night.

Yea this is what I tried before,
you can try to run it and it really don't work...
anyway, thanks so much for help and good night.

[Mitja Bonca]

Sure it does. I tried it.
Take a look at this picture, its a leaving prove:
http://file.si/files/46441_rioid/C%23_ResizeArray.jpg

Picture was taken after the code returned from the method which resized it. As you can see there are 8 indexes in the array. So this means resizing.