unity ui Layout Element Max Size

In unity ui , LayoutElement has min , prefered and flxible size . but do not have max size property . for Example if i have a text1 and

layoutElement.flxibleWith = 1

layoutElement.minHeight = 19

text1 with one line txt:

but when i load text in text1 it continue spread it height with no limits.

So i made a script to handle this problem

 using UnityEngine;
 using System.Collections;
 using UnityEngine.UI;
 
 [ExecuteInEditMode]
 [RequireComponent(typeof(LayoutElement))]
 
 public class LayoutElementMaxSize : MonoBehaviour
 {
 
     private LayoutElement layoutElement;
     private ContentSizeFitter contentSizeFitter;
     private RectTransform rectransform;
 
     public bool controllWidth;
     public bool controllHeight;
 
 
     public float maxHight;
     public float maxWidth;
 
     
 
     void Start()
     {
         layoutElement = GetComponent<LayoutElement>();
         rectransform = GetComponent<RectTransform>();
     }
 
 
     public void Update()
     {
         if(rectransform.hasChanged)
          {
             rectransform.hasChanged = false;
 
 
 
             if (controllHeight)
             {
                 layoutElement.preferredHeight = -1;
 
                 layoutElement.CalculateLayoutInputHorizontal();
                 layoutElement.CalculateLayoutInputVertical();
 
                
                
                 if (rectransform.rect.height >= maxHight)
                 {
                     layoutElement.preferredHeight = maxHight;
               
                 }
 
            
             }
 
 
 
             if (controllWidth)
             {
                 if (rectransform.rect.height >= maxWidth)
                 {
                     layoutElement.preferredWidth = maxWidth;
                 }
                 else
                 {
                     layoutElement.preferredWidth = -1;
                 }
 
             }
 
 
         }
 
         
 
 
 
     }
 
 }

but it is not full filing my requirement plz take a look on it what am i doing wrong ....