AssetDatabase.SetLabels

Parameters

Description

Replaces the list of labels on an asset.

SetLabels(obj, null) is safe and is equivalent to clearing the labels.

Don't set labels between calls to AssetDatabase.StartAssetEditing and AssetDatabase.StopAssetEditing. Labels are only visible to AssetDatabase.GetLabels after AssetDatabase.StopAssetEditing is called.

The following example adds the Vegetation label to the assets selected in the Project window:

using System.Linq;
using UnityEditor;
using UnityEngine;

static class VegetationLabeler
{
    [MenuItem("Tools/Add Vegetation Label")]
    static void AddVegetationLabelToSelection()
    {
        foreach (string guid in Selection.assetGUIDs)
        {
            string path = AssetDatabase.GUIDToAssetPath(guid);
            Object asset = AssetDatabase.LoadMainAssetAtPath(path);
            string[] currentLabels = AssetDatabase.GetLabels(asset);

            if (currentLabels.Contains("Vegetation"))
            {
                continue;
            }

            // SetLabels replaces the whole list, so append to the labels
            // the asset already has.
            AssetDatabase.SetLabels(
                asset, currentLabels.Append("Vegetation").ToArray());
        }
    }
}