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Latest Microsoft Visual Studio LightSwitch Forum Threads That Have Answers

I have what seems like a simple task that is causing me great frustration. I've been working on just this for two days, scouring the forums for anything related to the issue. I get the Unsaved Changes popup and I cannot figure out why. I am building an app that handles quotes. It has your basic Quote entity, with fields like LaborRate, HoursLabor, PartsDeposit (which is calculated from a related Parts table), and a Total. I have a series of change listeners added to recalculate the PartsDeposit if any parts are added by watching their count. There are three other change listeners that watch for changes in the PartsDeposit, LaborRate, HoursLabor fields. The following is in my screen's created method: // Add change listeners for totals var quote = screen.Quote; var parts = screen.UsedParts; quote.addChangeListener("LaborRate", function () { UpdateTotal(screen) }); quote.addChangeListener("HoursLabor", function () { UpdateTotal(screen) });
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When this screen is created  I set a default value for the auto complete search box  Dir:  to say "JP" in a html browse screen below? the current value showing was selected manually and is Id.Nickname. I have also tried this and many other things.     myapp.activeDataWorkspace.exo.j70Directors.filter( "NickName eq 'JP'" ).execute().then( function ( result ) {         entity.Id = result.results[0];         screen.Id = entity.j70Directors.Id     } ); Here is the image of the  screen.lsml
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following this code from this link: https://social.msdn.microsoft.com/Forums/vstudio/en-US/479cbc96-6ec2-4d9f-b2f8-a2b43a09111e/html-client-dynamically-count-records-in-a-collection-on-browse-screen?forum=lightswitch I have got my screen to count how many rows are present when the screen first loads. In my scenario I have a add button located on the bottom navigation bar. this opens up a dialog window where the user can add the relevant information. However when the user hits save, and is navigated back to the browse screen, the count still displays the previous value. If i was to refresh the page it updates but this is not what i am after, when i navigate back i want the value to add by one, am i missing something in this code?             screen.ExpanderLines.addChangeListener("state", function() {                     screen.countExp = screen.ExpanderLines.data.length;  
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I have a browse screen to display query results in a table. This for a large table and there are 50+ query parameters that the user can enter.  The query parameters are all on a separate screen. 1.  I need a button on the separate screen that when clicked will clear (set null or undefined??) all of the parameters, to allow the user to reset the search.  The screen properties that are the parameters are of all different types (bool, string, details picker/entity, date).  Is there a way to get them all without having to do setPropertyName() for each one manually? 2. Related to question 1, is there a way to iterate through the properties and get a reference based on the type of property? I'm going to take a look at the contentItem properties and methods and try to get this working but was wondering if anyone knows any tricks before I spend hours digging around. Thanks! 
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already an open datareader
4/16/2015 7:57 AM
I get this error in Azure but not on my dev computer: there is already an open datareader associated with this command. When debugging Azure the error happens in a WCF RIA projet at this line (in a recursive method): if (!channel.ChannelCollection.IsLoaded) channel.ChannelCollection.Load(); Have you an idea to resolve this exception? Thanks Yves Pflieger
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