Grid - Prefabs are positioned on the same position

[giosolo]

I'm trying to have a list of check boxes with a vertical scrolling (Based on Example 7  -Scroll view panel).
I'm using a prefab of a check box. Everything is working fine when I add prefabs as children of the Grid via the editor. 
I'm missing out something when it comes to dynamically instantiate: all the check boxes are positioned on the same position.

Below is the script attached to the draggable panel.

1. public class checkboxList: MonoBehaviour
2. {      
3.         public GameObject checkbox;
4.         UIGrid grid;
5.        
6.         void Awake()
7.         {
8.                 grid = ((UIGrid)((transform.Find("UIGrid")).GetComponent("UIGrid")) );
9.         }
10.        
11.  
12.         void Start ()
13.         {      
14.                 List<Game.contact> MyContactList =  Game.ContactList.get();
15.  
16.                 for(int i = 0; i < MyContactList.Count; i++)
17.                 {
18.                         GameObject item = NGUITools.AddChild( transform.Find("UIGrid").gameObject,checkbox);
19.                         ((UILabel)item.transform.Find("Label").GetComponent("UILabel")).text = MyContactList[i].fullname;
20.                         item.transform.name = "item" + i.ToString();
21.                 }
22.  
23.                 GameObject.Find("UIPanel (Clipped View)") .GetComponent<UIDraggablePanel>().ResetPosition();
24.         }
25.        
26.         void Update ()
27.         {
28.                         grid.Reposition();
29.         }
30. }

Please help.

[AndyGFX]

grid.Reposition();

add it at and of void Start()

[giosolo]

Thanks but it didn't fix it.
 

[AndyGFX]

1) ... and remove update void
2) set sorted to true on UIGrid
3) call reposition on grid
4) ResetPosition on panel

i have similar method used with Table and works.

1.  
2.    // Use this for initialization
3.     void Start ()
4.     {
5.         GlobalEditorData.cells = new TSourceCell[this.cellWidth,this.cellHeight];
6.        
7.         this.table = NGUITools.FindInParents<UITable>(this.gameObject);
8.         this.panel = NGUITools.FindInParents<UIDraggablePanel>(table.gameObject);
9.         table.sorted = true;
10.         this.table.columns = this.cellWidth;
11.        
12.         // rename objects to standard matrix direction from left -> right and from top -> down
13.         int idx = 0;
14.         for (int y=0;y<this.cellHeight;y++)                    
15.         for (int x=0;x<this.cellWidth;x++)
16.         {
17.            
18.             int cx = x;
19.             int cy = y;
20.             GlobalEditorData.cells[cx,cy] = new TSourceCell();                 
21.              
22.             GameObject cell = NGUITools.AddChild(this.gameObject,this.itemPrefab);
23.            
24.             string name_cell = string.Format("{0:0000}",idx);
25.            
26.             GlobalEditorData.cells[cx,cy].name = name_cell;
27.             GlobalEditorData.cells[cx,cy].item = cell;
28.             GlobalEditorData.cells[cx,cy].item.name = name_cell;
29.            
30.             string path = "/UI Root (2D)/Camera/Anchor/Source_Window/SourcePanelEmpty/SourceTable/"+GlobalEditorData.cells[cx,cy].item.name+"/ButtonEmpty_CMD";
31.            
32.             GameObject o = GameObject.Find(path);
33.            
34.             GlobalEditorData.cells[cx,cy]._cmd = (OnClick_SourceCell)o.GetComponent<OnClick_SourceCell>();                             
35.             GlobalEditorData.cells[cx,cy]._cmd.parentName = GlobalEditorData.cells[cx,cy].item.name;
36.             GlobalEditorData.cells[cx,cy]._cmd.label.text = cx.ToString()+"x"+cy.ToString();
37.             GlobalEditorData.cells[cx,cy].icon = (UISlicedSprite)GlobalEditorData.cells[cx,cy]._cmd.GetComponentInChildren<UISlicedSprite>();
38.            
39.             idx++;
40.            
41.         }
42.        
43.        
44.         this.table.Reposition();
45.         this.panel.ResetPosition();
46.        
47.     }
48.  

[giosolo]

Thanks.
Apparently the code was correct but the UIGrid was disabled