如何通过Unity 4.6中的C＃脚本更改2个不同的UI文本

Question

I'm trying to change two different text fields in Unity 4.6.3 with C# in monodevelop.

using UnityEngine;
using UnityEngine.UI;
using System.Collections;

public class NumberWizard : MonoBehaviour {
    int max;
    int min;
    int guess;
    public Text GuessUI;
    public Text TextUI;

                       [...truncated...]

        GuessUI.text = "500"; 
        TextUI.text = "Welcome to Number Wizard!";
    }

I'm getting this error:

NullReferenceException: Object reference not set to an instance of an object
NumberWizard.Start () (at Assets/Scripts/NumberWizard.cs:16)

What i am doing wrong?

Answer 1

It is not so clear what you want to achieve but if you want to update Text with depend on something then you should use IF statement. If you want to update 2 Text then NumberWizard script should take 2 Text parameters. Alternatively, you can use GameObject.FindByName() method. Example:

TextUI = GameObject.FindByName("TextUI");
GuessUI = GameObject.FindByName("GuessUI");
TextUI.Text = "Test1";
GuessUI.Text = "Test2";

Note: Your code and screenshots doesn't match. If you've 2 Text components then Unity Editor should show them.

Answer 2

I didn't figured out why that wasn't working but now is solved:

public Text GuessUI;
public Text TextUI;

TextUI.text = "Welcome to Number Wizard!";
GuessUI.text = "500"; 

And I set up this in inspector: