How to convert a list of Resolution to String

Hi guys... First of all, i'm Brazilian and i'm sorry about my bad english...

I am creating a PopUp Menu that shows all the resolutions supported by the monitor... To do this, i created a List of Resolution called resolutions and added the items after the foreach (Resolution res in resolutions)... Ok... Now i need to convert these resolutions to a string and add these string in other List of string... I can't add these items of the List because the other List is List, and when i put the .toString(), the console doesn't show the resolutions for me... The console shows me this (UnityEngine.Resolution)...

My code:

Code (CSharp):

1. private UIPopupList uiPopUpScript;
2. public List<Resolution> resolutionsList;
3.     // Use this for initialization
4.     void Start() {
5.         uiPopUpScript = GetComponent<UIPopupList>();
6.         resolutionsList = new List<Resolution>();
7.         Resolution[] resolutions = Screen.resolutions;
8.         foreach (Resolution res in resolutions) {
9.             resolutionsList.Add(res);
10.         }
11.             uiPopUpScript.item = resolutionsList.ToString();     // This uiPopUpScript.item is the List of string that i need to put all the resolutions...
12. }
13.  

 

Code (csharp):

1.  
2. private UIPopupList uiPopUpScript;
3. public List<Resolution> resolutionsList;
4.     // Use this for initialization
5.     void Start() {
6.         uiPopUpScript = GetComponent<UIPopupList>();
7.         resolutionsList = new List<string>();
8.         Resolution[] resolutions = Screen.resolutions;
9.         foreach (Resolution res in resolutions) {
10.             resolutionsList.Add(res.width+"x"+res.height);
11.         }
12.         uiPopUpScript.item = resolutionsList;
13. }
14.  

I cannot test it because I dont have the uiPopUpScript, but that should work.

 

Yeah, what i did was

Code (CSharp):

1. resolutionsList.Add((res.width).ToString()+"x"+(res.height).ToString());

Thank you very much...