This search provider is only active when specified explicitly using the filterId.
using UnityEditor; using UnityEditor.Search; using UnityEngine; static class SearchProvider_isExplicitProvider { internal static string type = "example_uppercase_isExplicitProvider"; internal static string displayName = "example_UpperCase_isExplicitProvider"; [SearchItemProvider] internal static SearchProvider CreateProvider() { return new SearchProvider(type, displayName) { filterId = "+", priority = 99999, // put example provider at a low priority isExplicitProvider = true, fetchItems = (context, items, provider) => { var expression = context.searchQuery; expression += " -> " + expression.ToUpper(); items.Add(provider.CreateItem(context, context.searchQuery.ToUpper(), context.searchQuery.ToUpper(), expression, null, null)); return null; } }; } [MenuItem("Examples/SearchProvider/isExplicitProvider")] public static void Run() { SearchService.SetActive(type); using (var context = SearchService.CreateContext("")) { // For the context of this example, we set the flag synchronous so we can get the results right away. context.options |= SearchFlags.Synchronous; // If we don't specify the filterId for an explicit provider, there will be no results. context.searchText = "uppercase String"; var results = SearchService.GetItems(context); Debug.Log(results.Count); // 0; // Use the filterId for an explicit provider context.searchText = "+uppercase String"; results = SearchService.GetItems(context); // There should be only one result with that specific description Debug.Log(results.Count); // 1; Debug.Log(results[0].description); // "uppercase String -> UPPERCASE STRING"; } } }