working with arrays

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i have made an array. first of all i want to make it global and on form load i wanna show it's first position and on a button' s click i want to increase it's position by one how can i do that

Dim LabelArray(12) As Integer
LabelArray(0) = Label3.BackColor = Color.White
LabelArray(1) = Label4.BackColor = Color.White
LabelArray(2) = Label5.BackColor = Color.White
LabelArray(3) = Label6.BackColor = Color.White
LabelArray(4) = Label7.BackColor = Color.White
LabelArray(5) = Label8.BackColor = Color.White
LabelArray(6) = Label9.BackColor = Color.White
LabelArray(7) = Label10.BackColor = Color.White
LabelArray(8) = Label11.BackColor = Color.White
LabelArray(9) = Label12.BackColor = Color.White
LabelArray(10) = Label13.BackColor = Color.White
LabelArray(11) = Label14.BackColor = Color.White

Posted 8-Apr-12 0:50am

Shenu_sharma

Updated 8-Apr-12 3:55am

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[no name] 8-Apr-12 9:55am

Format code with <pre> not [code]

Sergey Alexandrovich Kryukov 8-Apr-12 11:39am

You want to show what? What is first position?
--SA

2 solutions

Solution 2

In addition to Solution 1, as related to form collaboration:

As the question turned out to be very popular, and my previous answers often were not well understood, probably were not clear enough, I decided to write a Tips/Trick article complete with detailed code samples and explanations: Many Questions Answered at Once — Collaboration between Windows Forms or WPF Windows.

—SA

Posted 22-Mar-15 19:36pm

Sergey Alexandrovich Kryukov

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Sergey Alexandrovich Kryukov · Accepted Answer · 2012-04-08T05:56:00

First of all, you are doing a bad thing. The name "Label114" indicates that you have inserted many labels manually using the designer. You have used so much patience — but for what? It's like Harry Potter who was punished by having to write "I shall not tell lies" on a blackboard many times, but who punished you? :-)

Also, who would need to see so many controls on a form at the same time? OK, I can assume you are doing it for learning purposes.

Instead of doing this useless job by hand, you should have written it all in code. Something like:

C#

int labelCount = //...
int interval = //...
int left = //...
int top = //...
Control parent = // some instance of a form, panel, etc.

Label[] labels = new Label[labelCount];
for (index = 0; index < labelCount; ++index) {
    Label label = new Label();
    labels[index] = label;
    label.Top = top;
    label.Left = left;
    label.BackColor = Color.Write;
    label.Text = //...
    //whatever else...
    parent.Controls.Add(label); //will show it
    top += label.Height + interval; 
}

To move them all together, I would rather move the containing panel; but if you really need to move the whole array, you can do it like this:

C#

foreach (Label label in labels)
   label.Top += 1;

Isn't that simple?

And finally, about the "global". There is no a concept of "global" in .NET (finally, thanks goodness!). You maybe simply need to use and modify some properties of some forms in other forms or other classes. This is basically reduced to a popular question on the form collaboration. One of the most robust approached is implementing appropriate interface in the form's class, instead of reference to a "whole instance" of a Form.

Please see my past solution for more detail:
How to copy all the items between listboxes in two forms[^].

—SA