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Unable to simultaneously satisfy constraints, will attempt to recover by breaking constraint
Below is the error message I receive in the debug area. It runs fine and nothing is wrong except that I receive this error. Would this prevent apple accepting the app? How do I fix it?
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Node.js + Express: Routes vs controller
New to Node.js and Express, I am trying to understand the two seems overlapping concepts, routes vs controller.
2 Answers
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React JSX: selecting “selected” on selected option
In a React component for a <select> menu, I need to set the selected attribute on the option that reflects the application state.
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Android: Go back to previous activity
I want to do something simple on android app.
How is it possible to go back to a previous activity.
23 Answers
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angular ng-repeat in reverse
How can i get a reversed array in angular?
i'm trying to use orderBy filter, but it needs a predicate(e.g. 'name') to sort:
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Read data from SqlDataReader
I have a SQL Server 2008 database and I am working on it in the backend. I am working on asp.net/C#
13 Answers
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Including an anchor tag in an ASP.NET MVC Html.ActionLink
In ASP.NET MVC, I'm trying to create a link that includes an anchor tag (that is, directing the user to a page, and a specific section of the page).
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Should functions return null or an empty object?
What is the best practice when returning data from functions. Is it better to return a Null or an empty object? And why should one do one over the other?
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What does $$ mean in the shell?
I once read that one way to obtain a unique filename in a shell for temp files was to use a double dollar sign ( $$ ). This does produce a number that varies from time to time... but if you call it repeatedly, it returns the same number. (The solution is to just use the time.)
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EF Code First: How do I see 'EntityValidationErrors' property from the nuget package console?
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I got annoyed by this recently too. I fixed it by putting a wrapper function in the Configuration class in the Seed method, and replaced calls to SaveChanges with calls to my function instead. This function would simply enumerate the errors within the EntityValidationErrors col...