Welcome!

Apache Authors: Sematext Blog, Pat Romanski, Yeshim Deniz, Elizabeth White, Carmen Gonzalez

Blog Feed Post

How to: Use the SharePoint 2013 Search KeywordQuery Class

Over the past few versions of SharePoint, I have provided a number of blog posts on how to query search.  Of those, my posts on how to use the KeywordQuery class using KQL are some of the most popular (2010 and 2007).  In continuing that tradition, I am proud to present the “How to” post on using the KeywordQuery class in SharePoint 2013.  The good news: your old KeywordQuery code should still work.  The bad news: the way you did it is marked completely obsolete.  I actually had to dig through quite a bit of documentation to find the right API that wasn’t obsolete.  One thing that always provided confusion was that there were similar classes named KeywordQuery in both Microsoft.Search.Query and Microsoft.Office.Server.Query.  To reduce some of that confusion, the KeywordQuery class in Microsoft.Search.Query is now marked as obsolete.  The new updated class is in Microsoft.Office.Search.Query.  Microsoft may have killed the word Office from the name of the product in 2010, but it’s alive and well in the API.

Now let’s talk about what we need to execute some queries with our code.  The code here today will work well from farm solutions in SharePoint as well as other .NET applications hosted on the same SharePoint server.  We’ll be building a console application today.  If you want to query remotely using the object model, then you will need to use the Search Client Object Model which I covered previously.  Create a new console application, and then you will need to add a few references.  These can be found in the 15 hive in the ISAPI folder.  Add the following:

  • Microsoft.Office.Server
  • Microsoft.Office.Server.Search
  • Microsoft.SharePoint
  • Microsoft.SharePoint.Security

The classes we need are in the search assembly but you’ll get lots of errors about dependencies missing if you don’t include the others.  We then need the following references.  This gives us what we need for search, SharePoint, and for the underlying datatable object that is available after we query.

using System.Data;

using Microsoft.SharePoint;

using Microsoft.Office.Server.Search.Query;

Once we have this, we’re ready to get started.  There are many ways to instantiate a KeywordQuery object.  For simplicity, I am just going to pass a SPSite object for one of my site collections.  You can also pass a SPWeb or you can use the proxy technique like I used in my SharePoint 2010 post.  We’ll first, get our SPSite object.

using (SPSite siteCollection = new SPSite("http://server/sitecollection"))

We then create a KeywordQuery object using that site collection.

KeywordQuery keywordQuery = new KeywordQuery(siteCollection);

Now, we specify our query using the QueryText field.  This is where you can use your custom KQL queries.  The documentation team updated the post on this so there are a lot of good tips here.  I am just going to search for the word SharePoint.

keywordQuery.QueryText = "SharePoint";

In the past, we would then set the ResultsProvider and ResultTypes that we want, but now we don’t have to.  In fact, this whole process takes considerably less code.  Instead we use the new SearchExecutor class that I first mentioned in my Client OM post.

SearchExecutor searchExecutor = new SearchExecutor();

We then use it’s ExecuteQuery method passing it our KeywordQuery class.

ResultTableCollection resultTableCollection = searchExecutor.ExecuteQuery(keywordQuery);

Assuming it executes correctly, we can then get our search results.  Before, we used to use an indexer using ResultTypes.ReleventResults to get the table of results we need.  The indexer has been made obsolete, so now we must use the new Filter method.  I figured out what it required from the obsolete descriptor of the indexer.  For the first value, it needs a string with a value of TableType and since the previous enum is also obsolete, we now use KnownTableTypes.RelevantResults.

var resultTables = resultTableCollection.Filter("TableType", KnownTableTypes.RelevantResults);

It returns an IEnumerable<ResultType>, so we need to filter it.  I just FirstOrDefault() to get the table we need.

var resultTable = resultTables.FirstOrDefault();

Previously, we then had to load the data into a DataTable which took a few more lines of code.  However, now that is not required due to the new Table property.

DataTable dataTable = resultTable.Table;

Now that you have a DataTable, you can bind it or query it as you see.  You can also look at the results using the visualizer in Visual Studio.

KeywordQueryDataSetVisualizer

Here is the entire code snippet.

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

 

using System.Data;

using Microsoft.SharePoint;

using Microsoft.Office.Server.Search.Query;

 

namespace SearchConsoleApplication1

{

    class Program

    {

        static void Main(string[] args)

        {

            using (SPSite siteCollection = new SPSite("http://server/sitecollection"))

            {

                KeywordQuery keywordQuery = new KeywordQuery(siteCollection);

                keywordQuery.QueryText = "SharePoint";

 

                SearchExecutor searchExecutor = new SearchExecutor();

                ResultTableCollection resultTableCollection = searchExecutor.ExecuteQuery(keywordQuery);

                var resultTables = resultTableCollection.Filter("TableType", KnownTableTypes.RelevantResults);

 

                var resultTable = resultTables.FirstOrDefault();

 

                DataTable dataTable = resultTable.Table;

            }

        }

    }

}

So if you have a lot of search based code, you may need to do some updates at some point.  However, I think these are good changes and simplify the process a little bit.  In an upcoming post, I’ll cover some of the new things you can do with the KeywordQuery class.

Read the original blog entry...

More Stories By Corey Roth

Corey Roth, a SharePoint Server MVP, is a consultant at Hitachi Consulting specializing in SharePoint and Office 365 for clients in the energy sector. He has more than ten years of experience delivering solutions in the energy, travel, advertising and consumer electronics verticals.

Corey specializes in delivering ECM and search solutions to clients using SharePoint. Corey has always focused on rapid adoption of new Microsoft technologies including Visual Studio 2013, Office 365, and SharePoint.

He is a member of the .NET Mafia (www.dotnetmafia.com) where he blogs about the latest technology and SharePoint. He is dedicated to the community and speaks regularly at user groups and SharePoint Saturdays.

@ThingsExpo Stories
The industrial software market has treated data with the mentality of “collect everything now, worry about how to use it later.” We now find ourselves buried in data, with the pervasive connectivity of the (Industrial) Internet of Things only piling on more numbers. There’s too much data and not enough information. In his session at @ThingsExpo, Bob Gates, Global Marketing Director, GE’s Intelligent Platforms business, to discuss how realizing the power of IoT, software developers are now focused on understanding how industrial data can create intelligence for industrial operations. Imagine ...
The Internet of Things is tied together with a thin strand that is known as time. Coincidentally, at the core of nearly all data analytics is a timestamp. When working with time series data there are a few core principles that everyone should consider, especially across datasets where time is the common boundary. In his session at Internet of @ThingsExpo, Jim Scott, Director of Enterprise Strategy & Architecture at MapR Technologies, discussed single-value, geo-spatial, and log time series data. By focusing on enterprise applications and the data center, he will use OpenTSDB as an example t...
Today’s enterprise is being driven by disruptive competitive and human capital requirements to provide enterprise application access through not only desktops, but also mobile devices. To retrofit existing programs across all these devices using traditional programming methods is very costly and time consuming – often prohibitively so. In his session at @ThingsExpo, Jesse Shiah, CEO, President, and Co-Founder of AgilePoint Inc., discussed how you can create applications that run on all mobile devices as well as laptops and desktops using a visual drag-and-drop application – and eForms-buildi...
There is no doubt that Big Data is here and getting bigger every day. Building a Big Data infrastructure today is no easy task. There are an enormous number of choices for database engines and technologies. To make things even more challenging, requirements are getting more sophisticated, and the standard paradigm of supporting historical analytics queries is often just one facet of what is needed. As Big Data growth continues, organizations are demanding real-time access to data, allowing immediate and actionable interpretation of events as they happen. Another aspect concerns how to deliver ...
Scott Jenson leads a project called The Physical Web within the Chrome team at Google. Project members are working to take the scalability and openness of the web and use it to talk to the exponentially exploding range of smart devices. Nearly every company today working on the IoT comes up with the same basic solution: use my server and you'll be fine. But if we really believe there will be trillions of these devices, that just can't scale. We need a system that is open a scalable and by using the URL as a basic building block, we open this up and get the same resilience that the web enjoys.
The 3rd International Internet of @ThingsExpo, co-located with the 16th International Cloud Expo - to be held June 9-11, 2015, at the Javits Center in New York City, NY - announces that its Call for Papers is now open. The Internet of Things (IoT) is the biggest idea since the creation of the Worldwide Web more than 20 years ago.
In their session at @ThingsExpo, Shyam Varan Nath, Principal Architect at GE, and Ibrahim Gokcen, who leads GE's advanced IoT analytics, focused on the Internet of Things / Industrial Internet and how to make it operational for business end-users. Learn about the challenges posed by machine and sensor data and how to marry it with enterprise data. They also discussed the tips and tricks to provide the Industrial Internet as an end-user consumable service using Big Data Analytics and Industrial Cloud.
Things are being built upon cloud foundations to transform organizations. This CEO Power Panel at 15th Cloud Expo, moderated by Roger Strukhoff, Cloud Expo and @ThingsExpo conference chair, addressed the big issues involving these technologies and, more important, the results they will achieve. Rodney Rogers, chairman and CEO of Virtustream; Brendan O'Brien, co-founder of Aria Systems, Bart Copeland, president and CEO of ActiveState Software; Jim Cowie, chief scientist at Dyn; Dave Wagstaff, VP and chief architect at BSQUARE Corporation; Seth Proctor, CTO of NuoDB, Inc.; and Andris Gailitis, C...
How do APIs and IoT relate? The answer is not as simple as merely adding an API on top of a dumb device, but rather about understanding the architectural patterns for implementing an IoT fabric. There are typically two or three trends: Exposing the device to a management framework Exposing that management framework to a business centric logic Exposing that business layer and data to end users. This last trend is the IoT stack, which involves a new shift in the separation of what stuff happens, where data lives and where the interface lies. For instance, it's a mix of architectural styles ...
The Industrial Internet revolution is now underway, enabled by connected machines and billions of devices that communicate and collaborate. The massive amounts of Big Data requiring real-time analysis is flooding legacy IT systems and giving way to cloud environments that can handle the unpredictable workloads. Yet many barriers remain until we can fully realize the opportunities and benefits from the convergence of machines and devices with Big Data and the cloud, including interoperability, data security and privacy.
Technology is enabling a new approach to collecting and using data. This approach, commonly referred to as the "Internet of Things" (IoT), enables businesses to use real-time data from all sorts of things including machines, devices and sensors to make better decisions, improve customer service, and lower the risk in the creation of new revenue opportunities. In his General Session at Internet of @ThingsExpo, Dave Wagstaff, Vice President and Chief Architect at BSQUARE Corporation, discuss the real benefits to focus on, how to understand the requirements of a successful solution, the flow of ...
Cloud Expo 2014 TV commercials will feature @ThingsExpo, which was launched in June, 2014 at New York City's Javits Center as the largest 'Internet of Things' event in the world.
"People are a lot more knowledgeable about APIs now. There are two types of people who work with APIs - IT people who want to use APIs for something internal and the product managers who want to do something outside APIs for people to connect to them," explained Roberto Medrano, Executive Vice President at SOA Software, in this SYS-CON.tv interview at Cloud Expo, held Nov 4–6, 2014, at the Santa Clara Convention Center in Santa Clara, CA.
Performance is the intersection of power, agility, control, and choice. If you value performance, and more specifically consistent performance, you need to look beyond simple virtualized compute. Many factors need to be considered to create a truly performant environment. In his General Session at 15th Cloud Expo, Harold Hannon, Sr. Software Architect at SoftLayer, discussed how to take advantage of a multitude of compute options and platform features to make cloud the cornerstone of your online presence.
In this Women in Technology Power Panel at 15th Cloud Expo, moderated by Anne Plese, Senior Consultant, Cloud Product Marketing at Verizon Enterprise, Esmeralda Swartz, CMO at MetraTech; Evelyn de Souza, Data Privacy and Compliance Strategy Leader at Cisco Systems; Seema Jethani, Director of Product Management at Basho Technologies; Victoria Livschitz, CEO of Qubell Inc.; Anne Hungate, Senior Director of Software Quality at DIRECTV, discussed what path they took to find their spot within the technology industry and how do they see opportunities for other women in their area of expertise.
DevOps Summit 2015 New York, co-located with the 16th International Cloud Expo - to be held June 9-11, 2015, at the Javits Center in New York City, NY - announces that it is now accepting Keynote Proposals. The widespread success of cloud computing is driving the DevOps revolution in enterprise IT. Now as never before, development teams must communicate and collaborate in a dynamic, 24/7/365 environment. There is no time to wait for long development cycles that produce software that is obsolete at launch. DevOps may be disruptive, but it is essential.
Wearable devices have come of age. The primary applications of wearables so far have been "the Quantified Self" or the tracking of one's fitness and health status. We propose the evolution of wearables into social and emotional communication devices. Our BE(tm) sensor uses light to visualize the skin conductance response. Our sensors are very inexpensive and can be massively distributed to audiences or groups of any size, in order to gauge reactions to performances, video, or any kind of presentation. In her session at @ThingsExpo, Jocelyn Scheirer, CEO & Founder of Bionolux, will discuss ho...
Almost everyone sees the potential of Internet of Things but how can businesses truly unlock that potential. The key will be in the ability to discover business insight in the midst of an ocean of Big Data generated from billions of embedded devices via Systems of Discover. Businesses will also need to ensure that they can sustain that insight by leveraging the cloud for global reach, scale and elasticity.
We’re no longer looking to the future for the IoT wave. It’s no longer a distant dream but a reality that has arrived. It’s now time to make sure the industry is in alignment to meet the IoT growing pains – cooperate and collaborate as well as innovate. In his session at @ThingsExpo, Jim Hunter, Chief Scientist & Technology Evangelist at Greenwave Systems, will examine the key ingredients to IoT success and identify solutions to challenges the industry is facing. The deep industry expertise behind this presentation will provide attendees with a leading edge view of rapidly emerging IoT oppor...
“With easy-to-use SDKs for Atmel’s platforms, IoT developers can now reap the benefits of realtime communication, and bypass the security pitfalls and configuration complexities that put IoT deployments at risk,” said Todd Greene, founder & CEO of PubNub. PubNub will team with Atmel at CES 2015 to launch full SDK support for Atmel’s MCU, MPU, and Wireless SoC platforms. Atmel developers now have access to PubNub’s secure Publish/Subscribe messaging with guaranteed ¼ second latencies across PubNub’s 14 global points-of-presence. PubNub delivers secure communication through firewalls, proxy ser...