var student = new Student() {
StudentId = 50
};
using (var context = new SchoolContext()) {
context.Remove<Student>(student);
context.SaveChanges();
} In the above example, a Student with StudentId = 50 does not exist in the database. So, EF Core will throw the following DbUpdateConcurrencyException:Database operation expected to affect 1 row(s) but actually affected 0 row(s). Data may have been modified or deleted since entities were loaded.
You might think, as a developer, that nothing but the best is good enough as a development database. You might be mistaken. There is a lot to be said for LocalDB, but Ed Elliott argues that every edition has its pros and cons, and you need to consider Cloud-based resources, VMs and Containerised databases too. There is a whole range of alternatives and how you choose depends on the type of database you are developing, but for Ed, LocalDB gets the five-star accolade
How many times a week do you find the perfect StackOverflow article that solves your problem and saves you hours of banging your head against a wall? Help out other software engineers by posting your findings!
Security is one of the most important aspects of any application – and when we talk about security, particularly in ASP.NET applications, it is not limited to development. A secure app involves multiple layers of security in the configuration, framework, web server, database server, and more. In this post, we’ll take a look at the top nine tips for writing secure applications in ASP.NET.
REST APIs have become a common way to establish an interface between web back-ends and front-ends, and between different web services. The simplicity of this kind of interface, and the ubiquitous support of the HTTP and HTTPS protocols across different networks and frameworks, makes it an easy choice when considering interoperability issues.
No matter how hard we try to design and develop applications, errors will always occur. There are two general categories – syntax or logical errors can be either programmatic errors or consequences of incorrect database design. Otherwise, you might get an error because of the wrong user input.
A unified Windows operating system across all devices, from Windows desktops to Xbox One. How does that sound? Well, that’s what Windows Core OS is all about.
Though Microsoft has not officially released it yet, there is a lot of expectation online about this operating system and its potential to change the world of smart devices.
