Welcome!

Industrial IoT Authors: Olivier Huynh Van, Pat Romanski, Liz McMillan, Christopher Harrold, Derek Weeks

Blog Feed Post

How to: Pass parameters to a Client Web Part

This is one of those posts that I have promised to write but I totally forgot about.  What I want to talk about today is passing parameters to SharePoint 2013 Client Web Parts.  These parameters are equivalent to the properties on traditional web parts.  The process is relatively straight forward, but I thought I would share some of my experiences with it.  This article on MSDN will get you started, but I do things a bit differently. 

Unfortunately, the updates to the tools with Preview 2 don’t add anything to make this process easier. There are three steps to adding a property to a client web part.

  1. In elements.xml, add a property element which contains the description, type, default value, and other information.
  2. In elements.xml, edit the query string of the src attribute of the Content element to pass the parameter to the client web part page.
  3. Write JavaScript code to receive the value of the parameter.

When it comes to Client Web Part parameters, there are four types:

  • string
  • boolean
  • int
  • enum

You will use the above values in the Type attribute of the property you add.  It must match exactly.  Let’s take a look at the Property element and see what the values do.  In this case, we’ll add a string property.  In Preview 1, the elements.xml file used to include a commented example, but now that’s gone.  Here’s an example.

<Property Name="MyString" Type="string" WebBrowsable="true" WebDisplayName="Ny String" WebDescription="Text description of my string" WebCategory="Configuration" DefaultValue="Default My String" RequiresDesignerPermission="true" />

Aside from the type, the properties that you will probably care about are the following:

  • Name – name of the parameter you will query by JavaScript
  • Type – data type
  • WebDisplayName – name of the parameter displayed to the user in the web part properties
  • WebDescription – description of the parameter displayed to the user
  • WebCategory – group name in the web part properties
  • DefaultValue – the default value if the user does not change it

The Property element looks similar for both boolean and int types as well.  However, if you specify enum, the user will see a dropdown list of values.  It will contain an EnumItems child element which looks like this.

<Property Name="MyEnum" Type="enum" RequiresDesignerPermission="true" DefaultValue="1" WebCategory="Configuration" WebDisplayName="Enum property">

  <EnumItems>

    <EnumItem WebDisplayName="Choice 1" Value="1"/>

    <EnumItem WebDisplayName="Choice 2" Value="2"/>

    <EnumItem WebDisplayName="Choice 3" Value="3"/>

  </EnumItems>

</Property>

Once you finished defining your properties, you need to add them to the query string.  Effectively, SharePoint passes the values the user specifies by query string to the client web part page.  Each parameter comes in two pieces: the value your JavaScript will query and the the name from each Property element.  Each parameter looks something like this.

Parameter1=_Parameter1_

The value of the parameter is always enclosed in underscores (_).  For the two parameters we added above, here is what our src attribute will look like.  I’m using the same app part I created for the Preview 2 blog post.

<Content Type="html" Src="~appWebUrl/Pages/ClientWebPart1.aspx?MyString=_MyString_&amp;MyEnum=_MyEnum_&amp;{StandardTokens}" />

You’ll also notice that I have included {StandardTokens}, this tells SharePoint to provide common useful values such as the URL to the Host Web (SPHostUrl).

Now, we need to add JavaScript to the client web part itself to read the value and do something with it.  I use a helper method to help get query string values.  I’m pretty sure I got this method from one of the early SharePoint app examples but I’m not sure entirely.

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]);

    }

}

Using this method, we just request a value for the name of our parameters.  In my example below I simple assign the value to a div.

$("#myString").text(getQueryStringParameter("MyString"));

$("#myEnum").text(getQueryStringParameter("MyEnum"));

Now, when we add the App Part to the host web, we can configure it.  In the case I gave, you can find the values in the Configuration header.

ClientWebPartProperties

The values I selected can then be seen in the web part on the page.

ClientWebPartWithValuesSet

When you’re ready to add properties to your client web parts, I hope this post helps.  It’s not too complicated but it is a bit tedious.  Give it a try and see how it works for you.

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
"My role is working with customers, helping them go through this digital transformation. I spend a lot of time talking to banks, big industries, manufacturers working through how they are integrating and transforming their IT platforms and moving them forward," explained William Morrish, General Manager Product Sales at Interoute, in this SYS-CON.tv interview at 18th Cloud Expo, held June 7-9, 2016, at the Javits Center in New York City, NY.
Just over a week ago I received a long and loud sustained applause for a presentation I delivered at this year’s Cloud Expo in Santa Clara. I was extremely pleased with the turnout and had some very good conversations with many of the attendees. Over the next few days I had many more meaningful conversations and was not only happy with the results but also learned a few new things. Here is everything I learned in those three days distilled into three short points.
A strange thing is happening along the way to the Internet of Things, namely far too many devices to work with and manage. It has become clear that we'll need much higher efficiency user experiences that can allow us to more easily and scalably work with the thousands of devices that will soon be in each of our lives. Enter the conversational interface revolution, combining bots we can literally talk with, gesture to, and even direct with our thoughts, with embedded artificial intelligence, wh...
Adobe is changing the world though digital experiences. Adobe helps customers develop and deliver high-impact experiences that differentiate brands, build loyalty, and drive revenue across every screen, including smartphones, computers, tablets and TVs. Adobe content solutions are used daily by millions of companies worldwide-from publishers and broadcasters, to enterprises, marketing agencies and household-name brands. Building on its established design leadership, Adobe enables customers not o...
Why do your mobile transformations need to happen today? Mobile is the strategy that enterprise transformation centers on to drive customer engagement. In his general session at @ThingsExpo, Roger Woods, Director, Mobile Product & Strategy – Adobe Marketing Cloud, covered key IoT and mobile trends that are forcing mobile transformation, key components of a solid mobile strategy and explored how brands are effectively driving mobile change throughout the enterprise.
In this strange new world where more and more power is drawn from business technology, companies are effectively straddling two paths on the road to innovation and transformation into digital enterprises. The first path is the heritage trail – with “legacy” technology forming the background. Here, extant technologies are transformed by core IT teams to provide more API-driven approaches. Legacy systems can restrict companies that are transitioning into digital enterprises. To truly become a lea...
What are the new priorities for the connected business? First: businesses need to think differently about the types of connections they will need to make – these span well beyond the traditional app to app into more modern forms of integration including SaaS integrations, mobile integrations, APIs, device integration and Big Data integration. It’s important these are unified together vs. doing them all piecemeal. Second, these types of connections need to be simple to design, adapt and configure...
What happens when the different parts of a vehicle become smarter than the vehicle itself? As we move toward the era of smart everything, hundreds of entities in a vehicle that communicate with each other, the vehicle and external systems create a need for identity orchestration so that all entities work as a conglomerate. Much like an orchestra without a conductor, without the ability to secure, control, and connect the link between a vehicle’s head unit, devices, and systems and to manage the ...
24Notion is full-service global creative digital marketing, technology and lifestyle agency that combines strategic ideas with customized tactical execution. With a broad understand of the art of traditional marketing, new media, communications and social influence, 24Notion uniquely understands how to connect your brand strategy with the right consumer. 24Notion ranked #12 on Corporate Social Responsibility - Book of List.
The Jevons Paradox suggests that when technological advances increase efficiency of a resource, it results in an overall increase in consumption. Writing on the increased use of coal as a result of technological improvements, 19th-century economist William Stanley Jevons found that these improvements led to the development of new ways to utilize coal. In his session at 19th Cloud Expo, Mark Thiele, Chief Strategy Officer for Apcera, will compare the Jevons Paradox to modern-day enterprise IT, e...
Major trends and emerging technologies – from virtual reality and IoT, to Big Data and algorithms – are helping organizations innovate in the digital era. However, to create real business value, IT must think beyond the ‘what’ of digital transformation to the ‘how’ to harness emerging trends, innovation and disruption. Architecture is the key that underpins and ties all these efforts together. In the digital age, it’s important to invest in architecture, extend the enterprise footprint to the cl...
SYS-CON Events announced today that Commvault, a global leader in enterprise data protection and information management, has been named “Bronze Sponsor” of SYS-CON's 19th International Cloud Expo, which will take place on November 1–3, 2016, at the Santa Clara Convention Center in Santa Clara, CA. Commvault is a leading provider of data protection and information management solutions, helping companies worldwide activate their data to drive more value and business insight and to transform moder...
SYS-CON Events has announced today that Roger Strukhoff has been named conference chair of Cloud Expo and @ThingsExpo 2016 Silicon Valley. The 19th Cloud Expo and 6th @ThingsExpo will take place on November 1-3, 2016, at the Santa Clara Convention Center in Santa Clara, CA. "The Internet of Things brings trillions of dollars of opportunity to developers and enterprise IT, no matter how you measure it," stated Roger Strukhoff. "More importantly, it leverages the power of devices and the Interne...
What does it look like when you have access to cloud infrastructure and platform under the same roof? Let’s talk about the different layers of Technology as a Service: who cares, what runs where, and how does it all fit together. In his session at 18th Cloud Expo, Phil Jackson, Lead Technology Evangelist at SoftLayer, an IBM company, spoke about the picture being painted by IBM Cloud and how the tools being crafted can help fill the gaps in your IT infrastructure.
Digital innovation is the next big wave of business transformation based on digital technologies of which IoT and Big Data are key components, For example: Business boundary innovation is a challenge to excavate third-party business value using IoT and BigData, like Nest Business structure innovation may propose re-building business structure from scratch, as Uber does in the taxicab industry The social model innovation is also a big challenge to the new social architecture with the design fr...
Data is an unusual currency; it is not restricted by the same transactional limitations as money or people. In fact, the more that you leverage your data across multiple business use cases, the more valuable it becomes to the organization. And the same can be said about the organization’s analytics. In his session at 19th Cloud Expo, Bill Schmarzo, CTO for the Big Data Practice at EMC, will introduce a methodology for capturing, enriching and sharing data (and analytics) across the organizati...
DevOps at Cloud Expo, taking place Nov 1-3, 2016, at the Santa Clara Convention Center in Santa Clara, CA, is co-located with 19th Cloud Expo and will feature technical sessions from a rock star conference faculty and the leading industry players in the world. 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 dev...
IoT offers a value of almost $4 trillion to the manufacturing industry through platforms that can improve margins, optimize operations & drive high performance work teams. By using IoT technologies as a foundation, manufacturing customers are integrating worker safety with manufacturing systems, driving deep collaboration and utilizing analytics to exponentially increased per-unit margins. However, as Benoit Lheureux, the VP for Research at Gartner points out, “IoT project implementers often ...
Businesses are struggling to manage the information flow and interactions between all of these new devices and things jumping on their network, and the apps and IT systems they control. The data businesses gather is only helpful if they can do something with it. In his session at @ThingsExpo, Chris Witeck, Principal Technology Strategist at Citrix, will discuss how different the impact of IoT will be for large businesses, expanding how IoT will allow large organizations to make their legacy ap...
Video experiences should be unique and exciting! But that doesn’t mean you need to patch all the pieces yourself. Users demand rich and engaging experiences and new ways to connect with you. But creating robust video applications at scale can be complicated, time-consuming and expensive. In his session at @ThingsExpo, Zohar Babin, Vice President of Platform, Ecosystem and Community at Kaltura, will discuss how VPaaS enables you to move fast, creating scalable video experiences that reach your ...