Using Smart Search Filter via API/Code behind in Kentico

Introduction

This is sample how to use kentico smart search API + Smart Search Filtering via API / Code behind. The goal of this post is to show how you can use Smart Search API stated in this documentation. 

1. https://docs.kentico.com/api9/configuration/smart-search#Smartsearch-Usinganindextosearchthroughtext
2. https://docs.kentico.com/api10/configuration/smart-search#Smartsearch-Usinganindextosearchthroughtext

Example code.

Please understand on how smart search syntax work before you proceed. You can read about this in kentico documentation below : 

https://docs.kentico.com/k9/configuring-kentico/setting-up-search-on-your-website/smart-search-syntax

   /// <summary>  
   /// Smart Search + Filtering. Change return type to suite your requirement  
   /// </summary>  
   /// <param name="filterValue">  
   /// Filtering Syntax  
   /// eg : +(Collections:(719c06e0-ccd2-436d-84f7-ef879849ca7e)) +(weddings:(4))  
   /// Collections and weddings are fields name  
   /// </param>  
   private void SmartSearchAPI(string filterValue)  
   {  
     int count = 0;  
     // Gets the search index  
     SearchIndexInfo index = SearchIndexInfoProvider.GetSearchIndexInfo("<index code>");  
     if (index != null)  
     {  
       var condition = new SearchCondition(filterValue, SearchModeEnum.AnyWord, SearchOptionsEnum.FullSearch, null, false);    
       string searchText = SearchSyntaxHelper.CombineSearchCondition("", condition);  
       // Prepares the search parameters  
       SearchParameters parameters = new SearchParameters()  
       {  
         SearchFor = searchText,  
         SearchSort = "##SCORE##",  
         Path = "/%",  
         ClassNames = "",  
         CurrentCulture = CMS.Localization.LocalizationContext.GetCurrentCulture().CultureCode.ToUpper(),  
         DefaultCulture = CultureHelper.EnglishCulture.IetfLanguageTag,  
         CombineWithDefaultCulture = false,  
         CheckPermissions = false,  
         SearchInAttachments = false,  
         User = (UserInfo)MembershipContext.AuthenticatedUser,  
         SearchIndexes = index.IndexName,  
         StartingPosition = 0,  
         DisplayResults = 100,  
         NumberOfProcessedResults = 100,  
         NumberOfResults = 0,  
         AttachmentWhere = String.Empty,  
         AttachmentOrderBy = String.Empty,  
       };  
       DataSet data = SearchHelper.Search(parameters);  
       if (parameters.NumberOfResults > 0)  
       {  
         count = parameters.NumberOfResults;  
       }  
     }  
   }