How to make a GUI Tabel.

Hello. I want to build a GUI Tabel and use a data base to auto complete itself. I got a problem,when i use my script

using UnityEngine; using System.Collections;

public class GUITest : MonoBehaviour { int i; int x=30; int y=0;

 void OnGUI () 
 {

     for(i=0;i<118;i++)
     {
         GUI.Box(new Rect(x,y,30,30),"");
         x=x+40;
         if(x>=400)
         {
             x=0;
             y=y+40;
         }
     }

 }


     

The GUI tabel appear only for the duration of "for" like 0.3 seconds.I want to put it on a vector variabel or something like that so i can say v[i] do that v[x] do that and etc.

 }