Update

Assets/Invector-3rdPersonController/ItemManager/Scripts/Examples/vEquipItemTrigger.cs

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+using System;
+using System.Collections;
+using System.Collections.Generic;
+using Invector.vItemManager;
+using UnityEngine;
+using UnityEngine.Events;
+
+public class vEquipItemTrigger : MonoBehaviour
+{
+    public int itemID;
+    public UnityEvent OnEquipSuccess, OnEquipFail;
+    public vItemManager itemManager;
+
+    public void OnTriggerEnter(Collider other)
+    {
+        if (other.gameObject.CompareTag("Player"))
+        {
+            var itemManager = other.GetComponent<vItemManager>();
+            if (itemManager)
+            {
+                EquipItemIfExist(itemManager);
+            }
+        }
+    }
+
+    private void EquipItemIfExist(vItemManager itemManager)
+    {
+        if (itemManager.items.Exists(i => i.id == itemID))
+        {
+            var item = itemManager.items.Find(i => i.id == itemID);
+            var indexOfArea = System.Array.FindIndex(itemManager.inventory.equipAreas, area => area.equipSlots.Exists(slot => slot.itemType.Contains(item.type)));
+
+            itemManager.EquipItemToCurrentEquipSlot(item, indexOfArea);
+            OnEquipSuccess.Invoke();
+        }
+        else
+        {
+            OnEquipFail.Invoke();
+        }
+    }
+}