Click here to close now.




















Welcome!

Industrial IoT Authors: Liz McMillan, Pat Romanski, Tim Hinds, Dana Gardner, Ian Khan

Blog Feed Post

How to: Use the SharePoint 2013 Client Object Model (SP.js) from a Client Web Part

I was talking to Tom Resing (@resing) last week about using the SharePoint Client Object Model inside a Client Web Part and it became apparent that I left you all hanging with my last post.  I got you to the point where you could build your web part, but referencing SP.js is not as simple as you would think it would be.  I had to look at a lot of code samples to put this all together.  This follow-up post will give you the necessary steps to get started working with SharePoint right away.

The first thing I do is add some script references to the page.  For Client Web Parts, I tend to use a new .js file to host the web part’s JavaScript and I leave app.js to serve the needs of Default.aspx.  Building on my example from the last post, I add a new script called HelloWorldClientWebPart.js.  I add this in the Scripts folder. 

AppHelloWorldScriptProjectItem

We’ll add our code to this file in a minute but first I want to add those references.  In this case, we aren’t loading a reference to SP.js yet.  Instead, we’ll load jQuery from a CDN as well as MicrosoftAjax.js.  You may not need all of those, but chances are you do.

<head>

    <script type="text/javascript" src="../Scripts/jquery-1.6.2.min.js"></script>

    <script type="text/javascript" src="//ajax.aspnetcdn.com/ajax/4.0/1/MicrosoftAjax.js"></script>

    <script type="text/javascript" src="../Scripts/HelloWorldClientWebPart.js"></script>

</head>

Now we’ll jump over to our new script file.  We’re going to borrow a few lines from App.js starting with variables to hold the context, web, and user.

var context;

var web;

var user;

Now we use jQuery’s document.ready function to add our code.

$(document).ready(

    function () {

    }

);

You can add this line to your document.ready function to get a reference to the SPSite object of the site hosting the client web part (app part) as opposed to the site actually hosting the app itself.  We’ll also need it to get our reference to SP.js as well.

//Get the URI decoded SharePoint site url from the SPHostUrl parameter.

var spHostUrl = decodeURIComponent(getQueryStringParameter('SPHostUrl'));

This method relies on getQueryStringParameter which you’ll find in many App examples.

function getQueryStringParameter(urlParameterKey) {

    var params = document.URL.split('?')[1].split('&');

    var strParams = '';

    for (var i = 0; i < params.length; i = i + 1) {

        var singleParam = params[i].split('=');

        if (singleParam[0] == urlParameterKey)

            return decodeURIComponent(singleParam[1]);

    }

}

To get the host URL, you will have to modify your elements.xml to make this work.  Do this by adding {standardtokens} to the URL of the Content element.

<Content Type="html" Src="~appWebUrl/Pages/HelloWorldClientWebPart.aspx?{StandardTokens}" />

When you do this, SharePoint will automatically pass you a number of query string parameters that you can take advantage of including the SPHostUrl.  At that point you can pass the URL into your call to get a SPWeb object.

Back in the JavaScript file, we add the rest of our code.  First we need to get the URL to the 15 folder inside _layouts and assign it to our layoutsRoot variable.  Now we can use the jQuery getScript() method to retrieve the scripts we need.  Before you get SP.js, you have to get SP.Runtime.js.  That is why you see the nested calls below.  Once SP.js can be retrieved, it makes a call to the execOperation method.  This method can then take advantage of the SharePoint Client Object Model.

//Build absolute path to the layouts root with the spHostUrl

var layoutsRoot = spHostUrl + '/_layouts/15/';

 

$.getScript(layoutsRoot + "SP.Runtime.js", function () {

    $.getScript(layoutsRoot + "SP.js", execOperation);

}

);

To demonstrate it’s use, we’ll use the same script example used in App.js.  We start by defining execOperation and getting a reference to the content and SPSite object.

function execOperation() {

    // get context and then username

    context = new SP.ClientContext.get_current();

    web = context.get_web();

 

    getUserName();

}

We then use the same getUserName() and other functions from App.js.

function getUserName() {

    user = web.get_currentUser();

    context.load(user);

    context.executeQueryAsync(onGetUserNameSuccess, onGetUserNameFail);

}

 

// This function is executed if the above OM call is successful

// It replaces the content of the 'welcome' element with the user name

function onGetUserNameSuccess() {

    $('#message').text('Hello ' + user.get_title());

}

 

// This function is executed if the above OM call fails

function onGetUserNameFail(sender, args) {

    alert('Failed to get user name. Error:' + args.get_message());

}

Putting the entire script together, here is what it looks like.

var context;

var web;

var user;

 

//Wait for the page to load

$(document).ready(

    function () {

        //Get the URI decoded SharePoint site url from the SPHostUrl parameter.

        var spHostUrl = decodeURIComponent(getQueryStringParameter('SPHostUrl'));

 

        //Build absolute path to the layouts root with the spHostUrl

        var layoutsRoot = spHostUrl + '/_layouts/15/';

 

        $.getScript(layoutsRoot + "SP.Runtime.js", function () {

            $.getScript(layoutsRoot + "SP.js", execOperation);

        }

        );

 

        // Function to execute basic operations.

        function execOperation() {

            // get context and then username

            context = new SP.ClientContext.get_current();

            web = context.get_web();

 

            getUserName();

        }

    }

);

 

function getQueryStringParameter(urlParameterKey) {

    var params = document.URL.split('?')[1].split('&');

    var strParams = '';

    for (var i = 0; i < params.length; i = i + 1) {

        var singleParam = params[i].split('=');

        if (singleParam[0] == urlParameterKey)

            return decodeURIComponent(singleParam[1]);

    }

}

 

// This function prepares, loads, and then executes a SharePoint query to get the current users information

function getUserName() {

    user = web.get_currentUser();

    context.load(user);

    context.executeQueryAsync(onGetUserNameSuccess, onGetUserNameFail);

}

 

// This function is executed if the above OM call is successful

// It replaces the content of the 'welcome' element with the user name

function onGetUserNameSuccess() {

    $('#message').text('Hello ' + user.get_title());

}

 

// This function is executed if the above OM call fails

function onGetUserNameFail(sender, args) {

    alert('Failed to get user name. Error:' + args.get_message());

}

Lastly, I update HelloWorldClientWebPart.aspx with a div to hold the results.  Here is what the entire file looks like.

<%@ Register Tagprefix="WebPartPages" Namespace="Microsoft.SharePoint.WebPartPages" Assembly="Microsoft.SharePoint, Version=15.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c" %>

<WebPartPages:AllowFraming ID="AllowFraming1" runat="server" />

<head>

    <script type="text/javascript" src="../Scripts/jquery-1.6.2.min.js"></script>

    <script type="text/javascript" src="//ajax.aspnetcdn.com/ajax/4.0/1/MicrosoftAjax.js"></script>

    <script type="text/javascript" src="../Scripts/HelloWorldClientWebPart.js"></script>

</head>

<div>

    <h2>Hello World Client Web Part!</h2>

    <div id="message"></div>

</div>

We can then execute the app in the debugger and then add the App Part to the root page of our developer site.  It should look something like this when you’re done.

AppClientWebPartWithJavaScript

Sorry to leave you hanging like that on my previous blog post.  I hope this helps you get started with your app.  It’s a bit involved but not too bad.  It would be nice to create a custom SharePoint Project Item that does this for us.

Come see my sessions at SPC12 and follow me on twitter @coreyroth.

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
For IoT to grow as quickly as analyst firms’ project, a lot is going to fall on developers to quickly bring applications to market. But the lack of a standard development platform threatens to slow growth and make application development more time consuming and costly, much like we’ve seen in the mobile space. In his session at @ThingsExpo, Mike Weiner, Product Manager of the Omega DevCloud with KORE Telematics Inc., discussed the evolving requirements for developers as IoT matures and conducted a live demonstration of how quickly application development can happen when the need to comply wit...
Explosive growth in connected devices. Enormous amounts of data for collection and analysis. Critical use of data for split-second decision making and actionable information. All three are factors in making the Internet of Things a reality. Yet, any one factor would have an IT organization pondering its infrastructure strategy. How should your organization enhance its IT framework to enable an Internet of Things implementation? In his session at @ThingsExpo, James Kirkland, Red Hat's Chief Architect for the Internet of Things and Intelligent Systems, described how to revolutionize your archit...
SYS-CON Events announced today that HPM Networks will exhibit at the 17th International Cloud Expo®, which will take place on November 3–5, 2015, at the Santa Clara Convention Center in Santa Clara, CA. For 20 years, HPM Networks has been integrating technology solutions that solve complex business challenges. HPM Networks has designed solutions for both SMB and enterprise customers throughout the San Francisco Bay Area.
MuleSoft has announced the findings of its 2015 Connectivity Benchmark Report on the adoption and business impact of APIs. The findings suggest traditional businesses are quickly evolving into "composable enterprises" built out of hundreds of connected software services, applications and devices. Most are embracing the Internet of Things (IoT) and microservices technologies like Docker. A majority are integrating wearables, like smart watches, and more than half plan to generate revenue with APIs within the next year.
The Internet of Everything (IoE) brings together people, process, data and things to make networked connections more relevant and valuable than ever before – transforming information into knowledge and knowledge into wisdom. IoE creates new capabilities, richer experiences, and unprecedented opportunities to improve business and government operations, decision making and mission support capabilities.
Growth hacking is common for startups to make unheard-of progress in building their business. Career Hacks can help Geek Girls and those who support them (yes, that's you too, Dad!) to excel in this typically male-dominated world. Get ready to learn the facts: Is there a bias against women in the tech / developer communities? Why are women 50% of the workforce, but hold only 24% of the STEM or IT positions? Some beginnings of what to do about it! In her Opening Keynote at 16th Cloud Expo, Sandy Carter, IBM General Manager Cloud Ecosystem and Developers, and a Social Business Evangelist, d...
In his keynote at 16th Cloud Expo, Rodney Rogers, CEO of Virtustream, discussed the evolution of the company from inception to its recent acquisition by EMC – including personal insights, lessons learned (and some WTF moments) along the way. Learn how Virtustream’s unique approach of combining the economics and elasticity of the consumer cloud model with proper performance, application automation and security into a platform became a breakout success with enterprise customers and a natural fit for the EMC Federation.
The Internet of Things is not only adding billions of sensors and billions of terabytes to the Internet. It is also forcing a fundamental change in the way we envision Information Technology. For the first time, more data is being created by devices at the edge of the Internet rather than from centralized systems. What does this mean for today's IT professional? In this Power Panel at @ThingsExpo, moderated by Conference Chair Roger Strukhoff, panelists addressed this very serious issue of profound change in the industry.
Discussions about cloud computing are evolving into discussions about enterprise IT in general. As enterprises increasingly migrate toward their own unique clouds, new issues such as the use of containers and microservices emerge to keep things interesting. In this Power Panel at 16th Cloud Expo, moderated by Conference Chair Roger Strukhoff, panelists addressed the state of cloud computing today, and what enterprise IT professionals need to know about how the latest topics and trends affect their organization.
It is one thing to build single industrial IoT applications, but what will it take to build the Smart Cities and truly society-changing applications of the future? The technology won’t be the problem, it will be the number of parties that need to work together and be aligned in their motivation to succeed. In his session at @ThingsExpo, Jason Mondanaro, Director, Product Management at Metanga, discussed how you can plan to cooperate, partner, and form lasting all-star teams to change the world and it starts with business models and monetization strategies.
Converging digital disruptions is creating a major sea change - Cisco calls this the Internet of Everything (IoE). IoE is the network connection of People, Process, Data and Things, fueled by Cloud, Mobile, Social, Analytics and Security, and it represents a $19Trillion value-at-stake over the next 10 years. In her keynote at @ThingsExpo, Manjula Talreja, VP of Cisco Consulting Services, discussed IoE and the enormous opportunities it provides to public and private firms alike. She will share what businesses must do to thrive in the IoE economy, citing examples from several industry sectors.
There will be 150 billion connected devices by 2020. New digital businesses have already disrupted value chains across every industry. APIs are at the center of the digital business. You need to understand what assets you have that can be exposed digitally, what their digital value chain is, and how to create an effective business model around that value chain to compete in this economy. No enterprise can be complacent and not engage in the digital economy. Learn how to be the disruptor and not the disruptee.
Akana has released Envision, an enhanced API analytics platform that helps enterprises mine critical insights across their digital eco-systems, understand their customers and partners and offer value-added personalized services. “In today’s digital economy, data-driven insights are proving to be a key differentiator for businesses. Understanding the data that is being tunneled through their APIs and how it can be used to optimize their business and operations is of paramount importance,” said Alistair Farquharson, CTO of Akana.
Business as usual for IT is evolving into a "Make or Buy" decision on a service-by-service conversation with input from the LOBs. How does your organization move forward with cloud? In his general session at 16th Cloud Expo, Paul Maravei, Regional Sales Manager, Hybrid Cloud and Managed Services at Cisco, discusses how Cisco and its partners offer a market-leading portfolio and ecosystem of cloud infrastructure and application services that allow you to uniquely and securely combine cloud business applications and services across multiple cloud delivery models.
The enterprise market will drive IoT device adoption over the next five years. In his session at @ThingsExpo, John Greenough, an analyst at BI Intelligence, division of Business Insider, analyzed how companies will adopt IoT products and the associated cost of adopting those products. John Greenough is the lead analyst covering the Internet of Things for BI Intelligence- Business Insider’s paid research service. Numerous IoT companies have cited his analysis of the IoT. Prior to joining BI Intelligence, he worked analyzing bank technology for Corporate Insight and The Clearing House Payment...
"Optimal Design is a technology integration and product development firm that specializes in connecting devices to the cloud," stated Joe Wascow, Co-Founder & CMO of Optimal Design, in this SYS-CON.tv interview at @ThingsExpo, held June 9-11, 2015, at the Javits Center in New York City.
SYS-CON Events announced today that CommVault has been named “Bronze Sponsor” of SYS-CON's 17th International Cloud Expo®, which will take place on November 3–5, 2015, at the Santa Clara Convention Center in Santa Clara, CA. A singular vision – a belief in a better way to address current and future data management needs – guides CommVault in the development of Singular Information Management® solutions for high-performance data protection, universal availability and simplified management of data on complex storage networks. CommVault's exclusive single-platform architecture gives companies unp...
Electric Cloud and Arynga have announced a product integration partnership that will bring Continuous Delivery solutions to the automotive Internet-of-Things (IoT) market. The joint solution will help automotive manufacturers, OEMs and system integrators adopt DevOps automation and Continuous Delivery practices that reduce software build and release cycle times within the complex and specific parameters of embedded and IoT software systems.
"ciqada is a combined platform of hardware modules and server products that lets people take their existing devices or new devices and lets them be accessible over the Internet for their users," noted Geoff Engelstein of ciqada, a division of Mars International, in this SYS-CON.tv interview at @ThingsExpo, held June 9-11, 2015, at the Javits Center in New York City.
Internet of Things is moving from being a hype to a reality. Experts estimate that internet connected cars will grow to 152 million, while over 100 million internet connected wireless light bulbs and lamps will be operational by 2020. These and many other intriguing statistics highlight the importance of Internet powered devices and how market penetration is going to multiply many times over in the next few years.