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This is really strange ! After upgrading the lightswitch engine with Update 1, I'm suddenly unable to navigate forward to another screen (using myapp.showSomeScreen() ) from my home screen. Then, when I try to navigate back (using native previous arrow), I get the following error: TypeError: Unable to get property 'unit' of undefined or null reference    at wu (http://localhost:19952/HTMLClient/Scripts/msls-1.0.1.min.js:5:230291)    at au (http://localhost:19952/HTMLClient/Scripts/msls-1.0.1.min.js:5:121782)    at Anonymous function (http://localhost:19952/HTMLClient/Scripts/msls-1.0.1.min.js:5:121648)    at each (http://localhost:19952/HTMLClient/Scripts/jquery-1.9.1.min.js:3:5250)   

I am following the Working with Data in LightSwitch (Guided Tour) at http://msdn.microsoft.com/en-us/library/ff851982.aspx, and at the "Connecting to Data" portion I am unable to choose "OData Service" in the Attach Data Source wizard. It just doesn't appear. See attached. What do need I to do to get "OData Service" to appear, so I can choose it? Thank you! - tom

The Lightswitch security available at this time is at the entity level. There is also Row Level Security, but, as far as I know, there is no Lightswitch security implemented at the property level According to this article: http://blogs.msdn.com/b/lightswitch/archive/2012/04/17/filtering-data-using-entity-set-filters-michael-simons.aspx I took out the confidential properties of an entity A and put it into another entity B.  Then I define a 1 to 0..1 relationship between entity A and entity B.   I also wrote the necessary code in the A_Created general method in order to create the related B entity. Now suppose that we have different permissions defined for the two entities for all CRUD operations. (Security concerns were the reason why I split the original entity) According to this article: Read more...

I would like to open HTML client screen from Silverlight client.

In the Silverlight client we had the Auto Complete Box that you could bind to either a Query or a Choice List based property. In the current HTML client we have the Drop Down control that you can bind to a Choice List based property only from what I can see. Questions: 1/ Can we bind a Drop Down control to a Query? 2/ Can we dynamically populate a Choice List in Javascript at run-time (this was not possible in the Silverlight client)? If neither of the above are possible, what is the recommended way to have Drop Downs that are based on a query or dynamic data? Thanks in advance Regards, Xander