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ASP.NET MVC: Custom Validation by DataAnnotation
...is.MinLength)
{
return new ValidationResult(this.FormatErrorMessage(validationContext.DisplayName));
}
return null;
}
}
and then you might have a view model and decorate one of its properties with it:
public class MyViewModel
{
[CombinedMinLength(20, "B...
How do you install an APK file in the Android emulator?
...your terminal: ./adb install yourapkfilename.apk if you get the following error message: error: no devices found - waiting for device, follow the step 5.
Run your emulator from Android Studio, once emulator active then repeat step 4, you will see the success message on your terminal.
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How to test if a string is JSON or not?
...ll, and the server will return either a JSON string with useful data or an error message string produced by the PHP function mysql_error() . How can I test whether this data is a JSON string or the error message.
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“Could not run curl-config: [Errno 2] No such file or directory” when installing pycurl
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thanks for the python-dev package! i had this error without it : src/pycurl.h:4:20: fatal error: Python.h: No such file or directory
– Skullone
Apr 1 '19 at 14:14
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Razor View Engine : An expression tree may not contain a dynamic operation
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A common error that is the cause of this is when you add
@Model SampleModel
at the top of the page instead of
@model SampleModel
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TypeError: 'module' object is not callable
Why am I getting this error?
I'm confused.
11 Answers
11
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Insert, on duplicate update in PostgreSQL?
...ubject to race conditions that mean it might still fail with duplicate key error if a row is inserted concurrently, or might terminate with no row inserted when a row is deleted concurrently. A SERIALIZABLE transaction on PostgreSQL 9.1 or higher will handle it reliably at the cost of a very high se...
The located assembly's manifest definition does not match the assembly reference
...C# Windows Forms application (Visual Studio 2005), and I get the following error:
53 Answers
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Decreasing for loops in Python impossible?
... range(5,-1,-1). Although he could probably figure that out from trial and error.
– kojiro
Aug 26 '13 at 1:20
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Static hosting on Amazon S3 - DNS Configuration
...(index.html usually). You can also upload a custom page for 404 Not Found errors. Call this 404.html. Give Read permissions to every file in your website so that the public can view it. Don't give any extra permissions to the bucket, just the files within.
Configure your bucket as a website. Wit...