private void OnAddUnitCallBack(object obj)
{
var enumIndex = (int)obj;
var index = itemListProp.arraySize;
itemListProp.arraySize++;
var triggerProp = itemListProp.GetArrayElementAtIndex(index);
this.itemList.index = index;
selectedIndex = index;
triggerProp.FindPropertyRelative("type").enumValueIndex = enumIndex;
triggerProp.FindPropertyRelative("id").intValue = asset.GetID();
serializedObject.ApplyModifiedProperties();
}
