Version: 2018.3b (switch to 2018.2 or 2017.4)
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LayoutElement.preferredHeight

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public float preferredHeight;

Description

The preferred height this layout element should be allocated if there is sufficient space.

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

public class ExampleClass : MonoBehaviour { public Transform MyContentPanel;

//Sets the flexible height on on all children in the content panel. public void Start() { //Assign all the children of the content panel to an array. LayoutElement[] myLayoutElements = MyContentPanel.GetComponentsInChildren<LayoutElement>();

//For each child in the array change its LayoutElement's preferred height size to 100. foreach (LayoutElement element in myLayoutElements) { element.preferredHeight = 100f; } } }

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