FailBlog My Screen Editor Keeps Failing to Save

Question

When I go into the debug mode and try editing the layout of my screens Lightswitch OR Visual studio keeps hanging up and then eventually fails to save the changes. I tried just making a single change at a time but either the screen will show the changes but not acutal save them when I exit the project or it will fail outright and say so "Changes could not be persisted".

Answer 1

Sounds like your trying to edit a deployed app.  You can't debug/edit on a deployed instance.  Only from local VS debug during dev.  That said, sometimes I see same thing depending on the changes.

Answer 2

This is not a deployed app it is the MVVM editor it allows you to edit the screen while running the debug. In fact I am able to run the debug but while in the in debug mode and the subsequent deigner for screen layout that lets me make changes I cannot save any changes. It will say cannot persist changes when I hit save and exit that designer.

Answer 3

I have sometimes run into this error when I've tried to make many, complicated changes to a screen layout. Making small changes at run time worked OK. If that happens I make the large changes at design time.

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Simon Jones
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Answer 4

I thought this might be the case not because I made complicated changes but alot of groups through the use of coumbn and rows to make many three columbn rows. I was able to save a number of these changes but then it just stopped letting me do this. I tried just making one change at a time but the error still came up. I am not sure what is meant by makign the changes at runtime? can you clarify?

Answer 5

"At Runtime" = while the application is running

(As opposed to "design time" when you are editing the application or "compile time" when the application is being compiled.)

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Simon Jones
If you found this post helpful, please "Vote as Helpful". If it actually answered your question, please remember to "Mark as Answer". This will help other people find answers to their problems more quickly.