What is reactive extensions and how is it used in Angular 2?

reactivex.io  is the web site you need to visit to learn more about Reactive extensions.Any time you are connecting to the server, the ng Team is using the classes from ReactiveX. Remember, the observer pattern from the good old days, it is coming back again with the iterator pattern throwing in functional programming 🙂

My session will be hands on demo using Nintex Forms and Workflows to connect to SAP and Oracle. You will get to watch & listen to real case studies and demos of integrating SAP & Oracle data with SharePoint using Nintex forms and workflows. Check out the session details at

See you in Las Vegas at Nintex InspireX conference from Feb 22-24, 2016

Privileged to announce that I got an opportunity to lead a talented technical team that won the Nielsen Norman Group Best Intranet Award 2016 Worldwide.

Check this out
Built on SharePoint 2013, American Cancer Society’s new intranet replaces a number of disparate sites and systems, and eliminates outdated and redundant content, helping ACS reduce the number of servers needed and their associated costs by 62%.

“ACS worked to consolidate a set of sites built on outdated technology, with the goal of increasing engagement and encouraging collaboration,” said usability expert Jakob Nielsen, principal of Nielsen Norman Group. “The team created a site with a strong structure, inclusive resource library and many opportunities for employees and volunteers alike to learn, share and communicate.”

One of the biggest complaints about ACS’s previous system of siloed intranets was how difficult it was to find documents and information. Neudesic incorporated this and other user feedback into a mobile-responsive “search first” experience that leverages SharePoint 2013 Enterprise search capabilities to drive the site’s ultimate goal of increasing adoption.

“From identifying user personas to defining strategy and IA to designing and testing prototypes, it took a well-coordinated team effort to deliver the best possible experience for ACS users,” said Sathish TK, Neudesic Senior Solution Partner, Portals & Collaboration. “This recognition by Nielsen Norman is testament to the validity of our mobile first, user-centric approach to intranet design.”

A post-launch survey revealed that 71% of ACS staff visit Society Source every day to learn the latest cancer and organizational news and connect to resources, tools and people to help them perform their jobs. The new intranet is now the “most useful” of the eight channels ACS uses for internal communications.

“Society Source helps us create a single, aligned organization, presenting the opportunity for revamped governance and security policy – with well-defined roles and responsibilities – that extends across multiple platforms, such as hardware, software, internet browsers, mobile devices, etc.,” said Amy Hadsock, Senior Director, New Channels, ACS.

Visit Society Source for more information on the design and functionality of ACS’s award-winning intranet.

I have been asked numerous times on how a developer can get into Big Data development space. Although there is not a single right answer, I have laid out the approach you can consider taking. Depending on when you read this post, many Big Data players are moving towards developing solutions that are very easy to use by developers using SQL like languages.

I would encourage developers to start with Hive. Move on to Pig and then Scala or Python. 
Hive — Using query language based on SQL (HiveQL), you can write SQL queries that are transformed into MapReduce tasks. This is a good transition if you are coming from the relational database world.
Pig — Creates MapReduce jobs and can be extended with Python UDFs or Java. Procedural type language. Great candidate for simple data analysis tasks.
Scala —  This is a full programming language for Big Data developers. Complex language to learn but very powerful.
Start with playing around with basic ETL tasks using Hive or Pig and then move into Scala. Python is always a strong candidate and with many libraries available in Python for data analysis and ML, you can’t go wrong with it.
But for a quick learning road map, follow the bottom up approach shown in the diagram below

Page copy protected against web site content infringement by Copyscape

In Part 1 , and Part 2 of the series, we walked through setting up of project and App.js respectively. In this concluding post, we will look at how the html files are coded.

First, the customer.html file – Pretty straightforward
<H2> Customer Information </H2>
                <th>Customer ID</th>
                <th>Customer Name</th>
                <th>Customer Address</th>
                <th>Customer State</th>
                <th>Customer Country</th>
            <tr ng-repeat=”customer in customers”>
                <td><a href=”#/{{customer.CustomerID1}}”>{{customer.CustomerID1}}</a></td>
Look at the ng-repeat directive. This is what does all the magic here. Recollect, in Part 2 , we coded something like this,
$scope.customers = data.d.results;
$scope is the execution context for expressions. $scope is the glue between application controller and the view. In our case, the view is the HTML file, we already defined the controller, now it is a matter of connecting them together via the $scope variable.
As you would guessed, the orders.html is also simple:
<h2>Orders Page</h2>
                <th>Order ID</th>
                <th>Order Name</th>
                <th>Order Date</th>
                <th>Order Ship Country</th>
            <tr ng-repeat=”ord in orders”>
                <td> {{ord.OrderID}}</td>
                <td>{{ord.OrderDate | date : format}}</td>
You can always add in the customer name as the header so it makes sense to list the customer and the orders. That is for you to try out since it is very straightforward 🙂
Once you are done with all this, build your project, and deploy it from Visual studio. You deploy the apps to the apps site collection and you can launch it by clicking on the app name
Happy Coding!!!

Page copy protected against web site content infringement by Copyscape

My SharePoint 2010 Farm has 2 WFEs and 1 APP server. The APP server was hosting Service application and the index and crawl components split between web front ends.

I encountered the following error

catalog Main: failing to copy index files from crawl component 4 for <x> minutes. Access is denied

So, digging further did not result in finding any suitable fixes.

So, I created a new query component folder, mapped the new folder to the Query component and removed the old folder reference.

 Navigate to Search Administration (Manage service applications – Select Search Service Application). Modify Topology – Pick the query component causing the issue and edit properties

Try the above approach and if still does not work, do an index reset (watch out… if you are indexing a lot of content… this may take a long time to index the content back again) along with a new folder mapping. I did not have to delete the Query component and re-create it.

Happy Searching!


Page copy protected against web site content infringement by Copyscape

Here is the code snippet that would invoke SharePoint 2010 Powershell cmdlets from VS 2010

   1: private void invokeSPCmdlet()

   2:         {

   3:             // create runspace configuration

   4:             RunspaceConfiguration config = RunspaceConfiguration.Create();


   6:             // PSSnapIn exception object

   7:             PSSnapInException Ex = null;


   9:             try

  10:             {

  11:                 //add Microsoft SharePoint PowerShell SnapIn

  12:                 PSSnapInInfo pssnap = config.AddPSSnapIn("Microsoft.SharePoint.PowerShell", out Ex);


  14:                 //create powershell runspace

  15:                 Runspace cmdlet = RunspaceFactory.CreateRunspace(config);


  17:                 cmdlet.Open();


  19:                 RunspaceInvoke scriptInvoker = new RunspaceInvoke(cmdlet);


  21:                 // set powershell execution policy to unrestricted

  22:                 scriptInvoker.Invoke("Set-ExecutionPolicy Unrestricted");


  24:                 // create a pipeline and load it with command object

  25:                 Pipeline pipeline = cmdlet.CreatePipeline();


  27:                 Command cmd = new Command("Get-SPSite"); // Using Get-SPFarm powershell command

  28:                 pipeline.Commands.Add(cmd);



  31:                 pipeline.Commands.Add("Out-String"); // this will format the output

  32:                 IEnumerable<PSObject> output = pipeline.Invoke();


  34:                 pipeline.Stop();

  35:                 cmdlet.Close();


  37:                 // process each object in the output and append to stringbuilder

  38:                 StringBuilder results = new StringBuilder();

  39:                 foreach (PSObject obj in output)

  40:                 {

  41:                     results.AppendLine(obj.ToString());

  42:                 }

  43:                 //set the output to a multi-line text box

  44:                 textBox1.Text = results.ToString();

  45:             }

  46:             catch (Exception exError)

  47:             {

  48:                 MessageBox.Show(exError.Message.ToString());

  49:             }

  50:         }


You have to reference System.Management.Automation and include the following statements

using System.Management.Automation;
using System.Management.Automation.Runspaces;


There are various ways to invoke SP 2010 cmdlets, but the code snippet shows using RunspaceConfiguration to achieve this. On pasting the method into a standard windows form with a command button and text box, this is what the output would look like



The code snippet calls the “Get-SPSite” cmdlet from SharePoint Windows PowerShell.


  • Make sure you are targeting Framework 3.5 in VS 2010
  • Platform target is set to x64


I have used a simple text box to show results. There are many possibilities like feeding results to SilverLight (or) Visio Services…

Hope you find this useful!