How to open .dll files to see what is written inside?
you are better off with a decompiler like redgates .net reflector or jetbrains resharper decompiler. there are open source ones also like http://www.jetbrains.com/decompiler/ http://ilspy.net/
c#
Twilio TwilioRestClient does not contain a definition for SendSmsMessage
I’m trying to add Twilio for the SMS provider on my application, but I’m getting the following error on this line: TwilioRestClient does not contain a definition for SenSmsMessage and no extension method SenSmsMessage accepting a first argument of type TwilioRestClient coul be found (are you missing a using directive or an assembly reference?) I’m … Read more
Why is this code throwing an InvalidOperationException?
As you can see here, the First method throws an InvalidOperationException when the sequence on which it is called is empty. Since no element of the result of the split equals Hello5, the result is an empty list. Using First on that list will throw the exception. Consider using FirstOrDefault, instead (documented here), which, instead of throwing an exception when the sequence is empty, returns … Read more
Unable to connect to web server ‘IIS Express’
I am using Microsoft Visual Studio 2019 Community preview, version 16.4.0 Preview 1.0. I just update to Windows 10 Pro Version 1903 OS build 18362.418 . With ASP.NET Core 3 web-app project (Blazor Server), When I press F5, I catch error I can go to https://localhost:44333/ manually, but it is inconvenient. When I stop debug, I also turn … Read more
Difference between virtual and abstract methods
Virtual methods have an implementation and provide the derived classes with the option of overriding it. Abstract methods do not provide an implementation and force the derived classes to override the method. So, abstract methods have no actual code in them, and subclasses HAVE TO override the method. Virtual methods can have code, which is … Read more
OnCollisionEnter() not working in Unity3D
I have an object with a mesh collider and a prefab with sphere collider. I want the instance of the prefab to be destroyed if the two collide. I wrote the following in a script: But it is not working. I have tried toggling isTrigger on both the objects.
C# An established connection was aborted by the software in your host machine
An established connection was aborted by the software in your host machine That is a boiler-plate error message, it comes out of Windows. The underlying error code is WSAECONNABORTED. Which really doesn’t mean more than “connection was aborted”. You have to be a bit careful about the “your host machine” part of the phrase. In … Read more
Converting a String to DateTime
How do you convert a string such as 2009-05-08 14:40:52,531 into a DateTime?
Configuration System Failed to Initialize
Make sure that your config file (web.config if web, or app.config if windows) in your project starts as: Note that inside the configuration element, the first child must be the configSections element. In the name property on section element, make sure you replace YourProjectName with your actual project’s name. It happened to me that I created a webservice in a class library project, then I … Read more
What is the purpose of nameof?
What about cases where you want to reuse the name of a property, for example when throwing exception based on a property name, or handling a PropertyChanged event. There are numerous cases where you would want to have the name of the property. Take this example: In the first case, renaming SomeProperty will cause a compilation error if you … Read more