signalr

问题 I am a new user struggling to close a secondary signalR client gracefully from an ASP.NET Core Blazor Server Page. I am setting up a secondary signalR client connection on first render of a Blazor Server Page. I am trying to close this secondary signalR client connection when the Page is closed via the browser tab. At the time of writing DisposeAsync does not seem to be triggered when the page is closed via the browser tab. However, the Dispose method IS triggered. Furthermore in Safari 13.0

问题 I have tried several variations over the past several weeks and so far all I can do is pass a message from the UI to the server and back. I am unable to pass a message from my controller or other method outside the hub to the UI. It seems like I am not getting an instance of the HubContext. I've created a basic demo app from scratch and uploaded here: https://github.com/cdecinkoKnight/SignalRDemo-help I have a basic hub (MessageHub): [HubName("messages")] public class MessageHub : Hub,

问题 I have tried several variations over the past several weeks and so far all I can do is pass a message from the UI to the server and back. I am unable to pass a message from my controller or other method outside the hub to the UI. It seems like I am not getting an instance of the HubContext. I've created a basic demo app from scratch and uploaded here: https://github.com/cdecinkoKnight/SignalRDemo-help I have a basic hub (MessageHub): [HubName("messages")] public class MessageHub : Hub,

问题 I made an experimental solution which includes WebMvc (SignalR Client) -> (SignalR Hub) WebApi. Each time new user connects to WebMvc web site then it creates new Hub connection to WebApi. It means that if 10K users connect to web site then WebMvc will create 10K connections to SignalR Hub. Are there any connection limitations for WebMvc application? 回答1: The maximum number of concurrent connections depends on your settings. For SignalR, the limitation depends on your IIS Configuration for:

问题 In my application 2 projects and mvc client run at port(5002) and web api project run at port (5001). I have implemented signalr in mvc client. Now showing error log in console as below: and i have also added configuration to my api project for core policy like: services.AddCors(options => { options.AddPolicy("signalr", builder => { builder.WithOrigins("https://localhost:5002") .AllowAnyHeader() .AllowAnyMethod(); }); }); And now also showing same error. Please suggest. 回答1: You need to

问题 I'm trying to connect my Xamarin app to my SignalR backend which is hosted on Azure. The issue I'm having is every time I call StartAsync() on my HubConnection it just hangs the client and the request is never completed. I have tried break pointing through the app to make sure this is actually where the hang is happening. I have tried using the exact same code on an ASP.Net Core project to confirm the SignalR connection is working, which it is, I can connect and send commands successfully. I

问题 I'm trying to connect my Xamarin app to my SignalR backend which is hosted on Azure. The issue I'm having is every time I call StartAsync() on my HubConnection it just hangs the client and the request is never completed. I have tried break pointing through the app to make sure this is actually where the hang is happening. I have tried using the exact same code on an ASP.Net Core project to confirm the SignalR connection is working, which it is, I can connect and send commands successfully. I

问题 I'm trying to send parameters into connection to signalr Connection = new HubConnectionBuilder() .WithUrl("https://familyapp.azurewebsites.net/StoreHub?token=123") .Build(); await Connection.StartAsync(); In my server side i take this parameter from HttpContext: public override async Task OnConnectedAsync() { var group = Context.GetHttpContext().Request.Query["token"]; string value = !string.IsNullOrEmpty(group.ToString()) ? group.ToString() : "default"; await Groups.AddToGroupAsync(Context

问题 I have followed this tutorial. But there is no hint how to close the Websocket connection via the HubConnection class in signalr.js -file. The file is V1.0.4. This solution does not resolve my problem because I am using the microsofts javascript-library. Here ist the code: var lHubConnection = null; var Init = function () { // create instance lHubConnection = new signalR.lHubConnectionBuilder().withUrl("/chatHub").build(); // receive message lHubConnection.on("ReceiveMessage", function

问题 My code in SignalR hub: public class AlertHub : Hub { public static readonly System.Timers.Timer _Timer = new System.Timers.Timer(); static AlertHub() { _Timer.Interval = 60000; _Timer.Elapsed += TimerElapsed; _Timer.Start(); } static void TimerElapsed(object sender, System.Timers.ElapsedEventArgs e) { //Random rnd = new Random(); //int i = rnd.Next(0,2); Alert alert = new Alert(); i = alert.CheckForNewAlerts(EmpId); var hub = GlobalHost.ConnectionManager.GetHubContext("AlertHub"); hub