Restricting input field to predefined words

Hi Unity Community

I am wanting to use Unity’s UI Input Field as a means for searching predefined words, aided by autocomplete prompts. The user input needs to be restricted only to valid search terms (perhaps defined in a generic dictionary or what ever is appropriate).

Can anyone provide me any direction as to how this may be achieved w/o resorting to purchasing assets?

Many thanks in advance,


Try this code out. It will restrict wrong input, and it gives you a list with all matching words.

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

public class WordSearch : MonoBehaviour
    //All words you want your user to pick from
    string[] dictionary = new string[] { "Hallo", "Input", " Abde", "Hey", "kill" };
    //the inputfield your user is typing to
    public InputField inputField;
    public bool caseSensetive;
    public bool restrictUserInput;
    ArrayList possibleWords;

    void Start()
        inputField.onValueChange.AddListener(delegate { ValueChangeCheck(); });
        possibleWords = new ArrayList(dictionary.Length);

    void ValueChangeCheck()
        //Go through all words in your databas (could be slow with many words)
        for (int i = 0; i < dictionary.Length; i++)
            //Check if the words start matches the start from the input
            if (dictionary*.StartsWith(inputField.text, !caseSensetive, null))*

if (possibleWords.Count == 0 && restrictUserInput)
inputField.text = inputField.text.Remove(inputField.text.Length -1,1);
// Iterate through all possible words
for (int i = 0; i < possibleWords.Count; i++)
Debug.Log(dictionary[(int)possibleWords*]); // do something with the word*
//may display it