There’s no direct equivalent of “friend” – the closest that’s available (and it isn’t very close) is InternalsVisibleTo. I’ve only ever used this attribute for testing – where it’s very handy! Example: To be placed in AssemblyInfo.cs
ModelState.IsValid indicates if it was possible to bind the incoming values from the request to the model correctly and whether any explicitly specified validation rules were broken during the model binding process. In your example, the model that is being bound is of class type Encaissement. Validation rules are those specified on the model by the use … Read more
Because these two lines … … don’t take a parameter in the constructor, I guess that you create a context within the classes. When you load the city1… …you attach the city1 to the context in CityService. Later you add a city1 as a reference to the new Employee e1 and add e1 including this reference to city1 to the context in EmployeeService. As a result you have city1 attached to … Read more
I had this error and found a few solutions: Looking at your connection string, it looks valid. I found this blog post, the problem here is that they were using Integrated Security. If you are running on IIS, your IIS user needs access to the database. If you are using Entity Framework with Transactions, Entity Framework automatically opens and … Read more
From an int: From a string: Update: From number you can also
There are a couple generic types in .Net (v2 and later) that make passing functions around as delegates very easy. For functions with return types, there is Func<> and for functions without return types there is Action<>. Both Func and Action can be declared to take from 0 to 4 parameters. For example, Func < … Read more
In C#, there is a nice syntax sugar for fields with getter and setter. Moreover, I like the auto-implemented properties which allow me to write In C++ I have to write Is there some such concept in the C++11 allowing me to have some syntax sugar on this?
I’m having a problem with a Windows Form application I’m building in C#. The error is stating “foreach statement cannot operate on variables of type ‘CarBootSale.CarBootSaleList’ because ‘CarBootSale.CarBootSaleList’ does not contain a public definition for ‘GetEnumerator’”. I can’t seem to understand what is causing this. This is the code that is throwing up the error: … Read more
That was the best solution https://docs.microsoft.com/en-us/archive/blogs/hongyes/loop-reference-handling-in-web-api Fix 1: Ignoring circular reference globally (I have chosen/tried this one, as have many others) The json.net serializer has an option to ignore circular references. Put the following code in WebApiConfig.cs file: The simple fix will make serializer to ignore the reference which will cause a loop. However, it … Read more
This can happen if you do not assign a value to a DateTime field when the field does not accept NULL values. That fixed it for me!