Version: 2018.2
public UI.InputField.ContentType contentType ;

Description

Specifies the type of the input text content.

The ContentType affects character validation, keyboard type used (on platforms with on-screen keyboards), whether the InputField accepts multiple lines, and whether the text is autocorrected (on platforms that offer input auto-correction) or is treated as a password where the characters are not shown directly.

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; } }