Hashtable.ContainsKey(object)

Description

Determines whether the Hashtable contains a specific key.

// Searchs for a key on the hash table

var h : Hashtable;
h = new Hashtable();
h.Add("1","one");
h.Add("2","two");
if(h.ContainsKey("1")) {
    Debug.Log("Key '1', has been found!");
}

using UnityEngine;
using System.Collections;

public class ExampleClass : MonoBehaviour {
    public Hashtable h;
    void Example() {
        h = new Hashtable();
        h.Add("1", "one");
        h.Add("2", "two");
        if (h.ContainsKey("1"))
            Debug.Log("Key '1', has been found!");
        
    }
}