Runtime Array Bounds

For PowerBuilder .NET targets, the PowerScript language allows you to declare an unbounded array at design time, and to dynamically create the array bounds at runtime.

Note: Although you could create and use an unbounded one-dimensional array in earlier versions of PowerBuilder, you could not set bounds for these arrays at runtime.

PowerScript lets you specify array bounds for one-dimensional or multidimensional unbounded arrays. The array bounds are created at runtime.

This example sets the indexes for an unbounded one-dimensional array to 2, 3, 4, and 5:

        int arr[] //one-dimensional unbounded integer array
        arr = create int[2 to 5]

This example sets the indexes of an unbounded two-dimensional array to 4 for one dimension, and 2, 3, 4, and 5 for the other dimension:

        int arr[,] //two-dimensional unbounded integer array
        arr = create int[4, 2 to 5]

Although you can set runtime bounds for unbounded arrays, you cannot reset design-time array bounds at runtime. For example, this code produces an error:

        int a[3]
        a = create int[5] //ERROR

Other useful array rules

You can pass any kind of array to a .NET function as long as the array dimensions match the dimensions in the function's array parameter.
Blob and byte arrays, and string and char arrays can be assigned to each other.