Moving an array element to a variable.

17y3.1kVisual Basic .NET

When I started I didn't think just taking an element and copying to a variable was such a hassle.

OK, I have a string array defined as:

public static string[] Trux_Info = new string[20];

and I have a varaible define as

public static string port_in = "";

Now I thought that something like

port_in = Trux_Info[3]

would work. It didn't. I tried Trux_Info.GetValue(3). It didn't work right.

I know Trux_Info has info I can print to screen\file and the right info is there. I even passed the array across child, parent and back to a different child, the info is there.

I really need this element to go to this single variable, because after this happens then the processing can begin.

Any and all suggestion are appreciated.

Thanks N.

2 Replies

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zirano latt17y ago
I'm very much interested that you are having problem with the above code you mentioned. It seems fine to me. For value type array elements, they will always be preinitialized with default value of its type. As the string is reference type, all string array elements will be allocated with null value.

int[] a = new int[100];
Console.write(a[99]); // write 0 as int is value type and initialized default value to 0

string[] a= new string[100]
Console.write(a[99]); // write nothing as string is ref type and allocated as null value.
Console.write(a[99].ToString()); //error as accessing to the member of null object.

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Kirtan Patel17y ago
its Working Just Fine

            string[] Trux_Info = new string[20];
            Trux_Info[3] = "Hello";

            string str = Trux_Info[3];
            MessageBox.Show(str);
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