Posts Tagged ‘iisreset’

Dear all,

With LightSwitch, currently you can consume different data source types:


  • Database
  • SharePoint
  • WCF RIA Service

So far, so good. Upon a fresh installation, I set up a custom list. The goal was to consume the SP2010 list in a LightSwitch Application, as a data source. Using the Add Data Source wizard, I came until I entered the server address and my credentials on the server. Then, the Choose Your SharePoint Items window issued a message like:




With the small but all-telling message that what we need is a running SP2010 with the WCF Data Services installed. Obviously, I didn’t have this installed, so I went to install (as recommended) the CTP2 of the ADO.NET Data Services v1.5. In the good hope that it would work now, I tried again – but not a chance. I tried also to access the data services via browser, but this way it would issue only the following message:




Again, not a chance. So, I went for installing the following:


ADO.NET Data Services Update for .NET Framework 3.5 SP1 for Windows 7 and Windows Server 2008 R2


Since I am running Windows Server 2008 R2 on my VM, I took the choice above. If however you are running a different OS than the ones mentioned above, you might want to have a look at the following link:


ADO.NET Data Services Update for .NET Framework 3.5 SP1 for Windows 2000, Windows Server 2003, Windows XP, Windows Vista and Windows Server 2008


And here we went! Adding a datasource using LightSwitch, I got the a list of all available SP lists, as expected, and could add them as a datasource. One more thing that was bothering: When defining a custom list, specifying a column of type




Then LightSwitch Beta1 will import this list as a table where the column of type Number is always of type Double. Also, changing the list column type to number with 0 decimals won’t change this behaviour. Obviously, if then we try to create relationships in LightSwitch with tables from other data sources, we have a problem. I hope there exists a workaround for this not-so-much-desirable behavior.

Important notice: Before installing the above mentioned ADO.NET Data Services Update, please consider that the server will need to be restarted for the changes to take effect!

If you install the data services AFTER your SP2010 installation, then you might also to run the iisreset command. Of course, running all the installations and commands mentioned require attention and contain potential harms that are to be carried out at your own risk.


I wish you happy Lightswitching and SharePointing till the next time! 😉


Best regards,


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Hi all,

I just put onto the Visual Studio Gallery the new version 1.2 of WADA. Mostly, I tried to fix some stability issues when querying the processes after W3WPs crash or an IISRESET occurs.


  • WADA 1.1: IISRESET –> “Get Procs” –> No results –> Restart VS 2010
  • WADA 1.2: IISRESET –> Refresh Webapp –> “Get Procs” –> Results

This means, if you execute an IISRESET, the worker processes end, and in order to make them run again you should refresh the web application you are testing (this will issue a new W3WP process). Then, just click on “Get Procs” in order to visualize the processes again. This should fix the problem of the annoying VS restart when wanting to see the processes again in WADA.



Fig.1 Multiple selection of processes


Attaching improvements

Now, there is also the possibility to attach to multiple processes, by simply clicking on each of the desired and then pressing “Attach”.

If you want to simply attach one process, just double click on that process, and the attach will be performed.


Planned future improvements

– Remote debugging

– <your improvement suggestion here>


Thank you all for your suggestions and valuable feedback, and keep sending more of it! This project isn’t finished, yet, and feedback/suggestions are always welcome.


Best regards,


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