To keep things simple for this post, let's create a method on the server that will receive some string value, and return the length of the string in the client. The reason for this will soon become clear. I am not talking spelling as in the words are spelt correctly, according to some dictionary, only that the same spelling of method names are used on the server and client. The most important thing to understand when setting up communication between the server and client is that most of SignalR makes use of dynamic objects, so spelling is very important. Next, we will tackle the actual communication between the server and client. We will improve on this in the next step. Note at this stage the application will close after the connection is made, because it has nothing keeping it running. That is all there is to it to connect to a SignalR hub. _hub = connection.CreateHubProxy( " TestHub") String url = var connection = new HubConnection(url)
MICROSOFT FORMS DESKTOP APPLICATION CODE
You can do this through the GUI, or by running the following commands in the Package Manager Console:Ĭopy Code static void Main(string args)
MICROSOFT FORMS DESKTOP APPLICATION INSTALL
We will need to install some Nuget packages onto this application.Open Visual Studio, and create a new Console application.To keep things simple for this post, I am going to make use of the self-hosting option, and we are going to host the SignalR hub inside a simple console application. The service-hosting options for example is a good choice if you need the hub to always be on, and it can for example be restarted automatically when the machine restarts. Some of the hub-hosting options available to us are: There are various options when it comes to hosting a SignalR hub, all with their own advantages and disadvantages. This hub is what enables communication between the server and clients.īefore we create a sample hub, we first need to decide how we want to host the hub. One of the most important things to understand when implementing SignalR is that at the center of it all, is what we call a "Hub". Send message from the server to the client.Send message from the client application to the server.
Create desktop application that connects to the SignalR hub.Let us break the explanation down to the following steps: If you follow the steps below, you will see it isn't such a daunting task at all. For the people starting to feel anxious, rest assured, this is not as complicated as it might sound. The aim of this blog post is show how we can achieve this real-time communication between a server, and a desktop application. This makes it very useful to build real-time applications, such as chat applications, monitor dashboards, etc. It also builds on OWIN (Open Web Interface for. If WebSockets are not available, it gracefully falls back onto other technologies, without any changes in code. It works with the new HTML5 WebSockets API that enables bi-directional communication between clients (desktop applications, as well as browsers) and server. SignalR is a newish Microsoft technology that enables us to build real-time applications, where clients can push data to the server, and the server can push data to all clients. Well, let us start at the beginning and firstly discuss what SignalR is.
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