c# array.resize

[office politics]

i'm getting index out of bounds when trying to assign ok the the a array.

static void Main(string[] args)
        {
            string[] a = new string[0];

            Console.WriteLine(a.GetUpperBound(0) + 1);

            Array.Resize(ref a, a.GetUpperBound(0) + 1);

            a[0] = "ok";

            Console.WriteLine(a[0]);
        }

 

[NeoMagic33]

i'm getting index out of bounds when trying to assign ok the the a array.

static void Main(string[] args)
        {
            string[] a = new string[0];

            Console.WriteLine(a.GetUpperBound(0) + 1);

            Array.Resize(ref a, a.GetUpperBound(0) + 1);

            a[0] = "ok";

            Console.WriteLine(a[0]);
        }

Hi friend

This is my first post and feel that i am useful at C#.NET...

How familar are you with C#?

Index out of bounds means your trying to access a position within the array that is unavailable or not assigned anything..

The size of an array is ALWAYS "length - 1", as indexing starts at 0 within array, so what you are doing with the + 1 is incorrect. Additionally your array doesnt seem to have a size as you have assigned it 0, although as i said the indexing starts at 0, you still must assign a vaule <=1.

Let me know how you get on

All The Best

NeoMagic33

 

[Baez]

Neo is somewhat right. Except that you can set the array to 0 to start with. You're just resizing the array wrong. It isn't adding 1 to the size the way you were doing it.

static void Main(string[] args)
        {
            string[] a = new string[0];

            Console.WriteLine(a.GetUpperBound(0) + 1);

            Array.Resize(ref a, a.Length + 1);

            a[0] = "ok";

            Console.WriteLine(a[0]);
         }

That's what you need to use.

 

[jaeusm]

From a practical standpoint, if you find yourself needing to manually resize an array, use a List<T> instead. You can always call the 'ToArray()' method on the list if you need to pass the list as an array to some method.

 

[office politics]

I'm going to switch over to a list and use the add function. much easier.

jaeusm repped - edit, if i could - javascript error