I have almost 200 listboxes. I'm changing their visibility according to my variables from database.

So I thought that, I prepared a arraylist. like this

ListBox[] lbs = this.Controls.OfType<ListBox>().ToArray();

And used like this.

for (int idx = 0; idx < Convert.ToInt32(ds.Tables[j].Rows[i][2])*12; idx++)
     lbs[idx].Visible = true;

This codes are written to comboboxchange. Now everything is okay. But;

example;

first time I changed combobox

1-20 listboxes visible=true

I changed combobox again

not 1-20. 20,40 changing :S How can it be, can u tell me an alternative array list type, or another way?