How do I make my scroll view scroll to the bottom?

HI Everyone,
I'm trying to have a chat in my game, and I want the newest message to be on the bottom of the message area(the label). So I need my scroll bar to scroll down with each new message. I'm trying to play around with GUI.ScrollTo but I can't get it working. Here is the code, which is called in OnGUI(). I am trying to change the 'scrollAmount' variable with each message but I can't get it working.
Please help, thank you!

Code (csharp):

1.  
2.     void ChatWindow(int windowID)
3.     {
4.     scrollPosition = GUI.BeginScrollView(viewRect, scrollPosition, new Rect(10, 20, viewRectWidth-20, viewRectHeight+40), false, false );
5. //  GUI.ScrollTo(new Rect(0,scrollAmount,0,0)); //commented out for now
6.     GUILayout.Label(message, comStyle);  //Put in the label with automatic layout
7.     GUI.EndScrollView();
8.     }
9.  
10.  
11.  

 

Before

Code (csharp):

1. scrollPosition = GUI.BeginScrollView(viewRect, scrollPosition, new Rect(10, 20, viewRectWidth-20, viewRectHeight+40), false, false );

set scrollPosition to the height of your inner rect (in this case, viewRectHeight+40). Like such:

Code (csharp):

1.  
2. scrollPosition = Vector2(0, viewRectHeight+40);
3. scrollPosition = GUI.BeginScrollView(viewRect, scrollPosition, new Rect(10, 20, viewRectWidth-20, viewRectHeight+40), false, false );
4.  

But first you should check if there's actually a new message somehow. Here's my code for doing something similar (uncommented and a bit messy, it's a debug logger so I don't care about performance):

Code (csharp):

1.  
2. import Debug;
3.  
4. private var log:Array = new Array();
5. var maxLogMessages:int = 200;
6. var visible:boolean = true;
7.  
8. function Start()
9. {
10.     log.Add("DebugLogger v.0.1");
11. }
12.  
13. function print(string:String)
14. {
15.     log.push(string);
16.     if(log.length > maxLogMessages)
17.         log.RemoveAt(0);
18. }
19.  
20. private var scrollPos:Vector2 = Vector2(0, 0);
21. private var lastLogLen:int = 0;
22. var printGUIStyle:GUIStyle;
23. var maxLogLabelHeight:float = 100.0f;
24.  
25. function OnGUI()
26. {
27.     if(visible)
28.     {
29.         var logBoxWidth:float = 180.0;
30.         var logBoxHeights:float[] = new float[log.length];
31.        
32.                 // calculate full height of scrollview
33.         var totalHeight:float = 0.0;
34.         var i:int = 0;
35.         for(var string:String in log)
36.         {
37.             var logBoxHeight = Mathf.Min(maxLogLabelHeight, printGUIStyle.CalcHeight(GUIContent(string), logBoxWidth));
38.             logBoxHeights[i++] = logBoxHeight;
39.                    
40.             totalHeight += logBoxHeight+10.0;
41.         }
42.    
43.         var innerScrollHeight:float = totalHeight;
44.        
45.                 // if there's a new message, automatically scroll to bottom
46.         if(lastLogLen != log.length)
47.         {
48.             scrollPos = Vector2(0.0, innerScrollHeight);
49.             lastLogLen = log.length;
50.         }
51.        
52.         scrollPos = GUI.BeginScrollView(Rect(0.0, Screen.height-150.0-50.0, 200, 150), scrollPos, Rect(0.0, 0.0, 180, innerScrollHeight));
53.        
54.         var currY:float = 0.0;
55.         i = 0;
56.         for(var string:String in log)
57.         {
58.             logBoxHeight = logBoxHeights[i++];
59.             GUI.Label(Rect(10, currY, logBoxWidth, logBoxHeight), string, printGUIStyle);
60.             currY += logBoxHeight+10.0;
61.         }
62.         GUI.EndScrollView();
63.     } else
64.     {
65.         if(GUI.Button(Rect(0,Screen.height-40, 40, 40), "Log"))
66.             visible = true;
67.     }
68. }
69.  

EDIT: Cleaned out some irrelevant stuff (were in a rush yesterday).

 

Thanks a lot!

 

Sweet!!!!
Man have I burned some cycles to discover this.
Thank you ... 2 years ago .. thanks .....

 

Thanks in advanced!!!

 

Your the best... AROUND!