Edgile <Edgile@discussions.microsoft.com> wrote:
> Bellow is a little except that creates a static array dynamically. However
> it creates
> a two dimensional one instead of a single dimensional. Why????

Edgile wrote:
> Hello,
>
> Bellow is a little except that creates a static array dynamically.
> However it creates
> a two dimensional one instead of a single dimensional. Why????
>
> public static void Main(string[] args)
> {
> int[] intArray = new int[]{2,3};
> Type type = intArray.GetType();
> Array array = Array.CreateInstance(type, 0);
> // array is a two dimensional array. Why?
> intArray = (int[]) array; // Throws InvalidCastException, as expected
> Console.WriteLine();
> }

"Ben Voigt [C++ MVP]" wrote:

> Edgile wrote:
> > Hello,
> >
> > Bellow is a little except that creates a static array dynamically.
> > However it creates
> > a two dimensional one instead of a single dimensional. Why????
> >
> > public static void Main(string[] args)
> > {
> > int[] intArray = new int[]{2,3};
> > Type type = intArray.GetType();
> > Array array = Array.CreateInstance(type, 0);
> > // array is a two dimensional array. Why?
> > intArray = (int[]) array; // Throws InvalidCastException, as expected
> > Console.WriteLine();
> > }
>
> It isn't a two dimensional array. You can test that
>
> int[,] array2d = (int[,]) array; // InvalidCastException
>
> and
>
> array.Rank will be 1, not 2.
>
> In fact it is a one dimensional array where the element type is
> intArray.GetType() as you requested, that is each element is an array.
>
> This array-of-arrays is sometimes called a jagged array.
>
> If you want an array of the same type as the first array, use
> intArray.GetType().MemberType
>
>