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Declaration
public void DeleteArrayElementAtIndex(int index);
Description
Delete the element at the specified index in the array.
using System.Collections.Generic;
using UnityEditor;
using UnityEngine;
public class DeleteArrayElementAtIndexExample : ScriptableObject
{
public List<string> m_Data;
[MenuItem("Example/SerializedProperty/DeleteArrayElementAtIndex Example")]
static void MenuCallback()
{
DeleteArrayElementAtIndexExample obj = ScriptableObject.CreateInstance<DeleteArrayElementAtIndexExample>();
obj.m_Data = new List<string>() { "The", "big", "cat", "jumped." };
SerializedObject serializedObject = new SerializedObject(obj);
SerializedProperty arrayProperty = serializedObject.FindProperty("m_Data");
arrayProperty.DeleteArrayElementAtIndex(1);
// With previous deletion index 2 now becomes the last element
arrayProperty.DeleteArrayElementAtIndex(2);
serializedObject.ApplyModifiedProperties();
// Outputs "The cat"
Debug.Log("Final array contents: " + string.Join(" ", obj.m_Data));
}
}
using UnityEngine;
using UnityEditor;
public class DeleteArrayElementAtIndexExample2 : ScriptableObject
{
public int[] m_Array = new int[] { 1, -1, -1, 3, -1, -1, 1, 3, -1 };
[MenuItem("Example/SerializedProperty/DeleteArrayElementAtIndex Example 2")]
static void MenuCallback()
{
var scriptableObject = ScriptableObject.CreateInstance<DeleteArrayElementAtIndexExample2>();
using (var serializedObject = new SerializedObject(scriptableObject))
{
SerializedProperty arrayProperty = serializedObject.FindProperty("m_Array");
// Iterate the array removing any negative numbers
int arraySize = arrayProperty.arraySize;
for (int index = 0; index < arraySize;)
{
var arrayElement = arrayProperty.GetArrayElementAtIndex(index);
if (arrayElement.intValue < 0)
{
arrayProperty.DeleteArrayElementAtIndex(index);
arraySize--;
}
else
{
index++;
}
}
serializedObject.ApplyModifiedProperties();
Debug.Log("Cleaned array contents: " + string.Join(" ", scriptableObject.m_Array));
}
}
}