Visual studio Lightswitch - Version management - visual-studio

I have a business LS web application which I update from time to time.
I do the update by simply using the deploy wizard and everything is working great.
My problem is handling all my users that opened my system in their IE and left it open through my deploy process.
Since they have the old web application is opened on their browsers, and I have deployed the new version to the server, I can see errors occuring in certain situations.
Is there a way to make sure all users with the application opened will be forced to refresh the web application page? Maybe remotely disconnect all currently connected users?

There is no built in way of doing this. You will need to write a custom solution. Someone in the MSDN Forums has written a class to do this for OOB apps.
You should be able to reuse the timer part of that class. I'm not sure if the UpdateAvailable method will work for Web-based applications or not. You'll have to experiment with that.
Alternatively, you can create a custom notification system. Insert a message to your users into a table in your database from the administrator account. Have a timer on the user account check the table every so often. If it finds a new message, display a notification to the user.
Then you can use either an HTTP Response Header or an ASP method to log the users out as described in this Microsoft Support article.

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Saving organization-wide application settings in Teams app

I have a Teams application (Tab). I am an ISV provider, and provide a multi-tenant application that is installed by customers via Teams App Store in their organizations.
How do I save settings for my application organization-wide for the customers? For example, CustomerA has installed the app and then CustomerB. I want some storage that would be unique for CustomerA and CustomerB and the app, and located in customer's environment. The settings I want to save are not per-user, but per-organization (tenant).
Somewhat similar to "App Data" folder you have in Windows Desktop for example.
Does such a storage exist? Does API for this storage exist?
A tab app is a simply a web application that you render inside of Teams. As a result, what the app does, and where and how it does it, is totally up to you. This includes any data storage you choose to have behind the scenes. For example, your tab could be built in PHP and use MySQL, or built in ASP.Net and use SQL Azure or CosmosDB. It's totally up to you, but you need to implement it yourself, as an ISV.
The important piece to differentiate clients, however, is being aware of the TenantId for each user, so you can look up which client's settings you need from the database. The most simple way to do this is simply the tid property on the Teams tab context. You can read more about that here. Unfortunately, because it's just accessed via Javascript, it's not entirely secure - for a more secure mechanism, you should be creating an Azure Application, and generating jwt tokens that you can authenticate against in your backend. It's a much more complex topic, but hopefully this answer at least gives the background you need. For more info on the security aspects (validating the token etc.), please see this question: How to restrict access to Azure Function to only allow requests from a custom Microsoft Teams App?.

How to get user device type accessing skype for business bot built in MS Bot Framework

Does anyone know how to get the information about user device that access the bot deployed in S4B channel and built using MS Bot Framework (C#).
I need to know about the options to detect the user device (Device type and OS) accessing the Skype For Business Bot. If there's a way to know whether user device is desktop or mobile. In bot framework the User-Agent header formatted similar to the string below:
SFBUserAgent (Microsoft-BotFramework/3.1+https://botframework.com/ua)
(The user agent from Connector returns the following:
fxversion/4.7.2563.0 osname/windowsserver2016datacenter osversion/6.3.14393 microsoft.bot.connector.connectorclient/3.14.1.1)
I want to know if UCWA can be used to detect the device type accessing Skype For Business bot.
UCWA is not able to do so, actually no client or client-facing api can provide such information. It's because User-Agent information is not part of the presence so the client doesn't publish it to other clients. The main purpose of this User-Agent information is for monitoring reporting purpose.
However there is still some space from server side to allow us to do something. If you have access to the Skype for Business server, you have several workarounds.
Get-CsConnections.ps1 is a well-known script to pull current logged in user from Lync server side. It was written in 2011 while we only had Lync 2010, but good news is it works fine with new version of Lync like Lync Server 2013, Skype for Business server 2015. This script needs to be run in Lync/Skype management shell or a Powershell session with Lync/Skype modules imported. It needs to run by using an Lync/Skype admin account.
To retrieve user agent for a particular user by using sip uri.
$UserHomePool = (Get-CsUser -Identity [sip address]).RegistrarPool
Get-CsConnections.ps1 -SipAddress [sip address] -Pool $UserHomePool
Connections.ps1 is the prototype script of the above Get-CsConnections.ps1, it's simpler but doesn't provide advanced features. You can look at it and decide which one you need.
Do it yourself. If you don't want to use 3rd party script or just want to do it in a simplest and pure way, it's possible to do it by querying it from server database. Lync/Skype server stores this user agent information in the dynamic database in Front End server. It's in the table dbo.RegistrarEndpoint of the database rtcdyn of the instance rtclocal.
Please notice that there is no public document about the database schema so you need to do a little guess and hacking yourself. Good news is all data in the database is strored in readable format so it shouldn't be a big issue.
In a very rare chance that you are not wanting this information in real-time, the monitoring report and database can be the best approach. It's not real-time data, the data is generated within 10 mins after a conversation is ended.
If you want to get it from monitoring database, you should look at SessionDetails view for P2P conversation and ConferenceSessionDetails for conference conversation. There are straighforward fields in the views called something like UserClientType to point out the user agent information for the certain session.
At last one thing I would like to remind is Skype allows user to logged in multiple clients simultaneously, so no matter how you make it work you still need to face the question which logged in client really matters to you if the user has multiple clients logged in.

Xamarin - How to render list in backend

Currently I have an application which displays a list of items that when selected by a user it opens said item in the default browser on the mobile device they're using.
Currently because the items are hardcoded into the mobile app using the Xamarin platform then a new version of the app is needed to be released/deployed to every device when wanting to update.
I was wondering if anyone could provide me with any documentation/ideas on how I would be able to carry out adding more items to the list (preferably in a better UI than just a standard list) without having to release a new update.
Some ideas which I have thought about:
Using a CMS - to control the links that need to be open
SQL Lite - Create simple db with item name + url then call the url in the table (then somehow when I update the db its pushed into the app)
Using a cloud service such as Azure to do a similar function as above.
This question is vague, but if someone can point me in the correct direction.
That would be fantastic.
Depending on your knowledge, i would go with Azure or Parse Server and deploy the url's there. Each time you open the app it will fetch the links from the remote server. Both Azure and Parse provides caching so you wont incur any network traffic.
It will also depend how frequently you update the links, if you update them often then go setup Azure and Parse. If you rarely update the links then you can setup a local SQLite database and have a way to check from a remote server if there are any new links available, it they are there then you can pull them into your local SQLite database.

Active Directory Domain Services Auditing

I'll try to explain my goal as good as I can;
I want to trigger a script whenever there is a new computer added to a Organizational Unit.
To do this i need to activate the logging of this event under the local security policy/audit policy. I guess my question is, do I need to do this on all the domain controllers, or is it enough to do it one just one?
Also, is it possible to see the event from a member server with the Management Tools pack installed? As I don't want to put too much work on the Domain Controllers.
Here is the Microsoft article that gives 4 ways of tracking changes in Microsoft Active-Directory. You will find everything you need from configuring the eventlog to receiving notifications by way of different kind of polling.

Install Windows service for a Sharepoint application

I have written a Windows service to send mails to users in a Sharepoint list based on some condition.
The development server is a stand-alone Sharepoint installation and the Windows service works fine. But,the Production environment has the application(Sharepoint) and Database(SQL) residing on different servers.
So when the Windows service tries to open the list it says " Cannot open database "WSS_Content80" requested by the login. The login failed."
Pease let me know how to proceed.I am struck with this issue for a long time now..
To solve the Issue quick and Dirty way what you can do is grant permission to the Content Database of your SharePoint application for the User in Which Windows Services Run.
But you want to do it in a neat way I recommend you to write a Timer Job for SharePoint. Here not only does the Permission is taken care automatically but you can also deploy it to multiple Web Application if you want it and manage it easily.
The Best Article on the Subject is here MSDN or AC Article.
Another possible answer is to check which account your service is running as. Running it as a more privileged user like the account that is acting as your app pool would work.
Another possible tact is to look into SPSecurity.RunWithElevatedPrivledges method.

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