CHunky Universe of Vigouros Astonishing SHarepoint :)

Showing Birthdays and Job Anniversaries in the Newsfeed


In our project we have a requirement to show birthdays and job anniversaries in the Newsfeed. The solution is simple (when you know it) but there has not been any information about it online, until today. I want to share a few lines of PowerShell code to enable Anniversary notifications in the Newsfeed. This desired piece of code was written by my colleague Emma Degerman. Enjoy:

$job = Get-SPTimerJob | ? { $_.TypeName -like "*.UserProfileChangeJob" }
$job.GenerateAnniversaries = $true
$job.Schedule = [Microsoft.SharePoint.SPSchedule]::FromString("hourly between 55 and 55")

The code retrieves the Timer Job that changes User Profiles, sets “GenerateAnniversaries” to true, then it updates the schedule to run it before the Activity Feed Timer Job and updates it. By the way, it is only applicable for SharePoint On Premises.

This is it, a quick tip for a great Intranet.

Load git into PowerShell

Just a little productivity tip. If you use git on Windows, you probably already have the Github for Windows application. This application adds the Git Shell:


The Git Shell will open a PowerShell window and execute shell.ps1 from the Github directory:


What it won’t do is to load your personal PowerShell profile. I want to use my PowerShell profile that creates some links and adjust the look-and-feel and the promt of the shell. By the way I have published my profile.ps1 as a gist:

I also want to have git in PowerShell available directly. The answer is in the shell.ps1 in the Github folder:


So add this line to your profile.ps1 as I did:

. (Resolve-Path "$env:LOCALAPPDATA\GitHub\shell.ps1")

That’s it. If you haven’t seen the “DOT” in PowerShell scripts, it is called dot sourcing, it will execute the script and keep all the variables and references within the script.

An alternative

If you do not have Github for Windows, there is another way to load git functionality into PowerShell:

AppLoader Concept for SharePoint apps

In this post I want to share an unusual, nevertheless interesting conceptual idea of loading content from SharePoint 2013 apps on many pages. The original awesome concept was proposed and developed by my colleague Martin Villysson at Bool.

The problem we are trying to solve

SharePoint apps are great to extend functionality in SharePoint and integrate other systems (full page apps available through Site Contents), they also provide tools to enrich the default SharePoint experience by App Parts (Client Web Parts) and Custom Actions (additional menus).

One of the biggest shortcomings of that model is the need to add app parts on all pages where it is needed. Let’s say, we want to have some app parts present on every single page in our whole SharePoint tenancy, to provide a consistent look and feel (e.g. navigation, notifications). Traditionally, on premises, we have added user controls in our customized master page. In SharePoint Online that is impossible. The complicated workaround is to add those client web parts (app parts) on every page, be it manually or by automating it (powershell or app). It will require updating all pages. Nevertheless, it will not work on Out-of-the-box application pages (pages from layouts folder). It becomes even more unacceptable when you realize that your app must be added as an app instance on every single site (SPWeb) in your tenancy. 

Towards a solution

Allright, we don’t want to have thousands of app instances of the same app. What we can do is to use Tenant scoped apps (Tenant Apps). Then we’ll need only one app instance. But wait, app parts from a tenant app are only available in the parent site (HostWeb), meaning – App Catalog. That’s not good. So what Martin found in the SharePoint internal javascript code is using of _layouts/15/TenantAppInfo.ashx, a http handler that provides information about all Tenant Apps and their custom actions.That’s how the idea of the AppLoader was born.

Vesa Juvonen

After we had created a working Proof-of-Concept of the AppLoader concept, I met Vesa Juvonen at the SharePoint Conference in Las Vegas and introduced this idea to him (although I didn’t call it AppLoader). He liked it although he pointed out that this TenantAppInfo.ashx is an internal utility only in SharePoint and it is not supported by Microsoft. That’s correct. There is even almost no information about it on the Internet. But I got a feeling of Microsoft that they are willing to hear feedback and improve the product. Vesa encouraged me also to blog about it. So now I am telling about this idea. I hope to hear feedback about it. Unfortunately I cannot share the source code of the working Proof-of-Concept solution.

AppLoader Concept in colors

The AppLoader Concept is quite simple. Look at this picture:



The solution contains a custom Master Page (blue) that references a javascript file called apploader.js (red). This file initializes the whole process. Tenant Apps (green) are the apps that an administrator has installed in the App Catalog and deployed to the whole tenancy. TenantAppInfo.ashx (black) is a handy but officially unsupported OOB service utility (http handler) that returns a json-formatted list of all Tenant Apps (green). AppLoader (red) receives the app list (black) and renders it on the Page (blue) inside new iframes (red). The page a user has navigated to can be any page (wiki page, publishing page, application page, really any page).

To summarize the colors in the diagram: red is our javascript code, green are all the tenant apps and their content, black is the utility and its output, blue is a sharepoint page and its underlying component (master page).

The steps in the AppLoader process:

  1. Make an ajax request to TenantAppInfo.ashx using XHR (XmlHttpRequest)
  2. Receive the app list
  3. For every app information, render app part, or inject css and javascript references. 


Reading what to render on the page

You probably have already have tried to navigate to _layouts/15/TenanAppInfo.ashx while reading this post, I know you are curious. Then you’ve noticed that there is no information about app parts. So you may ask: how do we know what app parts to render and where to put them in the page, and how do we know what resources (css and javascript files) to inject on the page. Well there is no information about it in the apps list. But if you have an app with custom actions you’ll see that they are listed in this json-formatted list we receive from the TenantAppInfo.ashx. So the solution is the brilliant idea of my colleage Martin to define custom actions in the app. CustomActions contain a ActionUrl. The ActionUrl points to the url to render (app part page) or to inject (javascript or css file). The apploader.js reads the ActionUrl in the Custom Actions for every app information and takes action upon it (rendering an app part iframe, or injecting a javascript or css file). That’s it. 

Usage and Limitations

This bright idea takes advantages from a huge SharePoint API (that contains a lot of good but not supported parts) to make using of apps in Client Application Model solutions more pragmatic and still provide a consistent design and behavior. By consistent design I mean same parts like additional navigation, notifications etc in the whole Intranet. The AppLoader renders and injects whatever you have rolled out to your whole tenancy (Tenant Scoped Apps) and that on every page (!). It also improves the perceived performance of the page load, because it renders app parts (iframes) after the main page has been loaded preventing freezing of the page. 

There are of course some limitations in the AppLoader Concept. Today we cannot rely on the TenanAppInfo.ashx API (because it is not supported and future updates can break solutions). We have to define our own custom actions in the apps. That means we can only use our own apps, it will hardly work with the apps installed from the Office Store. On the other hand, your customer will not want to have generic apps from the Office Store to be a part of every page on their intranet.

Configuring VirtualBox for SharePoint-Hosted Apps

Recently I have switched from VMWare to VirtualBox for my SharePoint Development. So far it really works good. I have prepared this guide for configuring VirtualBox for SharePoint-hosted apps. That means we need a new adapter with a static ip address. All the steps done inside the virtual machine are applicable for VMWare and Hyper-V, too. This guide does not cover the full configuration of the app environment, it covers only the network and dns settings needed for SharePoint-hosted apps on Premises in a Development machine.

In VirtualBox open Preferences:


In Preferences, click on Network, then on Host-only Networks, click on “plus”


After a new host-only Network adapter has been created, click on the screwdriver image to configure the network:


Remember this ip address, you can alter it, of course. Or use this:, then you can have the same settings in your environment as I have:


Go on to the settings for your Virtual Machine. Enable Adapter 2, as shown on the picture below.


The rest are the settings in your virtual machine. Open Network Connections in the Control Panel. For the newly added Network Adapter (Ethernet 2), open Properties:


Then open Properties for “Internet Protocol Version 4 (TCP/IPv4)”


Remember the ip address for you VirtualBox host-only Network? I have Increment the last number ( and use it as the ip address for your adapter. The default gateway is as the the VirtualBox host-only Network. The DNS Server should be the same as the virtual machine, the same adapter:


Open DNS Manager, right-click on Forward Lookup Zones and start the New Zone Wizard by clicking on “New Zone…”:


Follow the steps in the wizard:


Choose “Primary Zone”:


Keep the default setting: “To all DNS Servers running on domain controllers in this domain:


Write your app domain. I use takanaapps.local:


Choose “Do not allow dynamic updates”:


Then finish the New Zone Wizard:


In the new forward lookup zone (takanaapps.local), add a new wildcard cname entry (alias):


Just add an asterisk and point it to your main domain (takana.local in my case):


After that you should be able to ping any subdomains of your app domain (xyz.takanaapps.local, abc.takanaapps.local):


When you start adding apps to your sites, you should add app sites to your local intranet zone (to be automatically signed in in apps webs). This setting in IE will affect Chrome as well. Go to the Options in the Internet Explorer:


In the Security tab -> Local Intranet, click on Sites:


Click on Advanced button:


Add your new app domain with an asterisk in front of it to the “Websites” of the Local Intranet:



A presentation about PowerShell and SharePoint

Yesterday I had a little presentation about PowerShell basics in the SharePoint context. Here you can see the presentation I’ve published on slideshare. The text is in Swedish.

A PowerShell one liner

PowerShell is powerful. You can write concise, well formulated, functional-style code. Recently I got the following quiz:

You’ve got $100. You have to buy exactly 100 animal, at least 1 dog, 1 cat and 1 mouse. 1 dog costs $15, 1 cat costs $1, 1 mouse costs $0.25.

There can be  many ways to solve it. But look at this one line solution. It is quite impressive what you can do with PowerShell

1..98 | % {
    $dog = $_
    1..98 | % {
      $cat = $_
        "Dog" = $dog
        "Cat" = $cat
        "Mouse" = 100 - $dog -$cat
  } | ? {
      $_.Mouse -gt 0
  } | ? { $_.Dog * 15 + $_.Cat * 1 + $_.Mouse * 0.25 -eq 100 }

This solution uses ranges, dynamic objects (PSObject), nested for loops, implicit returns and advanced filtering. All that is is out-of-the-box PowerShell.

AngularJS Performance Tuning for Long Lists

Anatoly Mironov:

This is a must-read for all SharePoint Developers who use Angular.

Originally posted on Small Improvements:

AnglarJS is great! But when dealing with large lists containing complex data structure, things can get very slow! We ran into that problem when migrating our core admin screens to AngularJS. The screens were supposed to work smoothly when displaying some 500 rows. But the first approach took up to 7 seconds to rende. Terrible!

We discovered two main performance issues for our implementation. One is related to the ng-repeat directive, the other was related to the filtering.

The following article summarizes our experiences with different approaches to solve or mitigate the performance problem. It will give you ideas and hints, what you can try out yourself and what is maybe not be worth a try.

Why is ng-repeat in AngularJS slow with large lists?

The ng-repeat directive of AngularJS is getting slow above 2500 two-way data bindings. You can read more about this in a post by Misko Hevery…

View original 1,404 more words

Updating hover style in IE8 Developer Tools

In our project we still have to support Internet Explorer 8. The CSS issues in IE8 are most difficult to debug and solve. You can not add a new rule in Developer Tools or toggle the state of an element to hover as in moder web browser dev tools.

One solution that I’ve come up to today, is to add a style with javascript or jQuery, open the script pane in IE8 Dev Tools and add this line:

$('<style>.ms-srch-item:hover {filter:none !important;}</style>')

This will fill update the hover effect of the .ms-srch-item directly.



That’s it, just a little tip.

Debugging “What’s happening” in Communities

Recently an issue was reported about count mismatches in SharePoint 2013 Communities. The number of replies in category tiles sometimes is different compared to the community stats in the web part called “What’s happening”. The actual number of replies is 1 in the figure below. The user who has reported has tried to add, update and delete discussions and replies.


category-replies-count.png   comm-002

I have invested some time debugging this issue. It would be pity to not share my findings. Well the first thing to do was to determine the type name for the “What’s happening” web part. To do so just edit the  page and export the web part. In the exported .webpart file I saw that the type was Microsoft.SharePoint.Portal.WebControls.DashboardWebPart.

With that knowledge it is time to open ILSpy, an awesome and free(!) assembly browser and decompiler. Load the “Microsoft.SharePoint.Portal” assembly from GAC into ILSpy. Then use F3 to search for DashboardWebPart:


The number of replies is retrieved from SPWeb.AllProperties:


If the Property Bag does not contain it, it gets the number of replies from the list. The formula is as follows:

list.ItemCount - list.RootFolder.ItemCount

It means that it gets the number of both discussions and replies: ItemCount of Discusssions List. The number of Discussions is determined by the ItemCount in the RootFolder of the Discussions List. Discussions are List Items in the RootFolder (num2 in the figure below). Replies are saved in the subfolders, every discussion gets an own folder. The number of all replies are num3 in the figure below.


After checking the web properties I could see that the number of replies there were wrong: 2.

The next step was to determine where and when the Web Properties are updated. The first guess every SharePoint Developer has in such cases is an EventReceiver. Here are all EventReceivers connected to the Discussions List:

$list.EventReceivers | select class, Type, Synchronization | Out-GridView


Allright, CommunityEventReceiver then:


Found where the actual update happens: CommunityUtils.UpdateWebIndexedPropertyBag


The method is used in DiscussionListCommunityEventHandler.HandleEvent


There is a flag, flag5 that is used to determine if the Web Properties should be updated:


But the flag5 is not true on Delete operations in some code flows:



That’s it. So deleting a reply will not have any effect on “What’s happening”. But adding a new discussion will also update the stats:


To summarize the debug session, there is an issue in the OOB code that misses to update community stats when deleting a discussion or a reply. Adding a new discussion, or a reply will synchronize the stats.

How to reference nested class or struct etc, in PowerShell

Originally posted on Discovering SharePoint:

I had a problem trying to reference a struct inside a public class from PowerShell. I tried to do it just like in C#, only with PowerShell syntax, simply adding the nested class or struct in the namespace, separated by a dot.

Doesn’t work:

$myProperty = [MyProject.MyClass.MyClassStruct]::MyProperty

But this didn’t work. Instead I got the following error:
Unable to find type [MyProject.MyClass.MyClassStruct]: make sure that the assembly containing this type is loaded.”

It seems, after fiddling around a bit and doing a quick search, that PowerShell has it’s very own way of calling a nested class or struct. Instead of adding the nested class with a dot, you actually have to use a +, like this:


$myProperty = [MyProject.MyClass+MyClassStruct]::MyProperty

I don’t know why, but that’s the way you do it. =)


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