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InputField.characterLimit

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public var characterLimit: int;
public int characterLimit;

Description

How many characters the input field is limited to. 0 = infinite.

#pragma strict
// Required when Using UI elements.
public class Example {
	public var mainInputField;
	public var playerName;
	function Start() {
		//Changes the character limit in the main input field.
		mainInputField.characterLimit = playerName.Length;
	}
}
using UnityEngine;
using System.Collections;
using UnityEngine.UI; // Required when Using UI elements.

public class Example : MonoBehaviour { public InputField mainInputField; public string playerName;

void Start() { //Changes the character limit in the main input field. mainInputField.characterLimit = playerName.Length; } }