Version: 2017.1
public Experimental.UIElements.Slider.Direction direction ;

Description

The direction of the slider, from minimum to maximum value.

using UnityEngine;
using System.Collections;
using UnityEngine.UI; // Required when Using UI elements.

public class Example : MonoBehaviour { public Slider mainSlider;

public void Start() { //Changes the direction of the slider. if (mainSlider.direction == Slider.Direction.BottomToTop) { mainSlider.direction = Slider.Direction.TopToBottom; } } }