Question about Multi-dimensional arrays

[noilliz 38]

I'm currently working on a vehicle selector script, but I seem to have trouble putting the array in my list box

The code below will shot 1 till 4 in the listbox.

_list = ["1", "2", "3", "4"];

_ctrl1 = (findDisplay 7720) displayCtrl 1500;

{
  _ctrl1 lbAdd _x;
} forEach _List);

However, that's not what I want, I only want 1 and 3 to show while still being able to expand the array for as long as I wish. So i thought why not make it a dimensional array and select 0 of each array but how?

How do i get

_list = [["1", "2"], ["3", "4"]];

to output 1 and 3. I have been trying a lot but I can't seem to get it to work properly, A quick google search gave me no results. If it's there excuse me for not finding it.

 

Cheers,

Joey

[xjoker_ 25]

_list = [["1", "2"], ["3", "4"]]; 
_ctrl1 = (findDisplay 7720) displayCtrl 1500;

{
	_ctrl1 lbAdd (_x select 0);
} foreach _list;

 

[Grumpy Old Man 3545]

Pretty easy once you think about it a bit.

A multidimensional array is nothing more than an array nested inside an array.

When '_list' is ["1","2","3"] then _x in the forEach loop refers to a string.

When '_list' is [["1", "2"], ["3", "4"]] then _x in the forEach loop refers to an array of strings.

How do you get a value from an array? By using 'select'.

 

So you'll do this:

_list = [["1", "2"], ["3", "4"]];

_ctrl1 = (findDisplay 7720) displayCtrl 1500;

{
  _ctrl1 lbAdd (_x select 0);
} forEach _List);

 

Cheers

[noilliz 38]

1 hour ago, xjoker_ said:

_list = [["1", "2"], ["3", "4"]]; 
_ctrl1 = (findDisplay 7720) displayCtrl 1500;

{
	_ctrl1 lbAdd (_x select 0);
} foreach _list;

 

 

 

59 minutes ago, Grumpy Old Man said:

Pretty easy once you think about it a bit.

A multidimensional array is nothing more than an array nested inside an array.

When '_list' is ["1","2","3"] then _x in the forEach loop refers to a string.

When '_list' is [["1", "2"], ["3", "4"]] then _x in the forEach loop refers to an array of strings.

How do you get a value from an array? By using 'select'.

 

So you'll do this:

_list = [["1", "2"], ["3", "4"]];

_ctrl1 = (findDisplay 7720) displayCtrl 1500;

{
  _ctrl1 lbAdd (_x select 0);
} forEach _List);

 

Cheers

 

 

 

That's what I thought, tried it and it did not work, but since you guys suggested it I tried again. And now it does work, well thanks a lot!

I must have made a mistake somewhere down the line.