OverflowException: Value is too large

[yoannG]

Hello there,
I am a beginner, and i am trying to make my first app for mobile with unity: a basic calculator.

1. I am getting the input value of a
   number, which i store in a List of
   integers.
2. Each time a new digit is entered or
   removed, i display the number in a
   gameObject button with a text.
3. Before it is displayed, i convert to
   an int and format it with commas so
   that it is more readable.

Problem: with big numbers (over 10 digits i believe), these 2 last functions seem to fail because value is too large.
I don’t know about a function that would allow me to bypass this limitation, and was hoping that some of you add a better knowledge at this than me !

---

using UnityEngine;
using System;
using System.Collections;
using System.Collections.Generic;
using System.Globalization;
using UnityEngine.UI;

public class NumberBox : MonoBehaviour {


	public Text textDisplayNumber;
	int convertedNumber;
	public List<int> numberListRaw = new List<int>();

	void Update () {
		CollectingNumberInput ();
	}

	void CollectingNumberInput(){
		if (Input.GetKeyDown(KeyCode.Keypad1)){
			numberListRaw.Add (1);
			DisplayNumber ();
		}
		if (Input.GetKeyDown(KeyCode.Keypad2)){
			numberListRaw.Add (2);
			DisplayNumber ();
		}
		if (Input.GetKeyDown(KeyCode.Keypad3)){
			numberListRaw.Add (3);
			DisplayNumber ();
		}
		if (Input.GetKeyDown(KeyCode.Backspace)){
			numberListRaw.RemoveAt (numberListRaw.Count - 1);
			DisplayNumber ();
		}
	}

	void DisplayNumber(){
		textDisplayNumber.text = "";
		for (int i = 0; i< numberListRaw.Count; i++){
			textDisplayNumber.text += numberListRaw *;*

•  }*
  

•  convertedNumber = Int32.Parse (textDisplayNumber.text);*
  

•  textDisplayNumber.text = String.Format("{0:n0}", convertedNumber);*
  

• }*
  }

[hexagonius]

Use an int64 (long) instead of the Int32