Question

嘿伙计们，我第一次尝试使用siqnalr，并且遇到一些问题让它发挥作用。

我可以让客户端调用hub方法，没有任何问题。我可以让集线器无故障地呼叫客户端。但我想从我的服务器端按钮单击事件调用集线器，这样我就可以使用处理信息更新客户端，但无论我尝试什么，我都无法让它工作。

有没有人有任何想法？

我可能错过了一些简单的事情，但我不知道出了什么问题。

这是我的代码：

Global.asax中

protected void Application_Start(object sender, EventArgs e)
    {
        RouteTable.Routes.MapHubs();
    }

TestHub.cs

  using System;
  using System.Linq;
  using Microsoft.AspNet.SignalR;

    namespace Hubs
    {

        /// <summary>
        /// Summary description for TestHub
        /// </summary>
        public class TestHub : Hub
        {

            public void Send(string name, string message)
            {
                // Call the broadcastMessage method to update clients.
                Clients.Caller.broadcastMessage(name, message);
            }


            internal static void Send2(string name, string message)
            {

                //test 1
                IHubContext context = GlobalHost.ConnectionManager.GetHubContext<TestHub>();
                context.Clients.All.Send(name, message);

                //test 2
                IHubContext context2 = GlobalHost.ConnectionManager.GetHubContext<TestHub>();
                context2.Clients.All.broadcastMessage(name, message);

            }

        }

    }

的Default.aspx

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="default.aspx.cs" Inherits="Signalr2._default" %>

<!DOCTYPE html>


<%@ Register Assembly="Telerik.Web.UI" Namespace="Telerik.Web.UI" TagPrefix="telerik" %>

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title></title>
</head>
<body>
    <form id="form1" runat="server">

        <telerik:RadScriptManager ID="RadScriptManager1" Runat="server">
            <Scripts>

                <asp:ScriptReference Assembly="Telerik.Web.UI" Name="Telerik.Web.UI.Common.Core.js" />
                <asp:ScriptReference Assembly="Telerik.Web.UI" Name="Telerik.Web.UI.Common.jQuery.js" />
                <asp:ScriptReference Assembly="Telerik.Web.UI" Name="Telerik.Web.UI.Common.jQueryInclude.js" />     

                <asp:ScriptReference Path="~/Scripts/jquery.signalR-1.1.2.js"/> 
                <asp:ScriptReference Path="~/signalr/hubs"  />  

            </Scripts>
        </telerik:RadScriptManager>

        <telerik:RadScriptBlock ID="RadScriptBlock1" runat="server">

            <script type="text/javascript">

                $(function ()
                {
                    // Declare a proxy to reference the hub. 
                    var ifiHub = $.connection.testHub;

                    // Create a function that the hub can call to broadcast messages.
                    ifiHub.client.broadcastMessage = function (name, message)
                    {

                        // Html encode display name and message. 
                        var encodedName = $('<div />').text(name).html();
                        var encodedMsg = $('<div />').text(message).html();

                        // Add the message to the page. 
                        $('#discussion').append('<li><strong>' + encodedName + '</strong>:&nbsp;&nbsp;' + encodedMsg + '</li>');
                    };

                    //Start the connection.
                    $.connection.hub.start().done(function ()
                    {
                        ifiHub.server.send('connection started:', $.connection.hub.id);
                    });
                });

            </script>

        </telerik:RadScriptBlock>

        <asp:Button ID="Button1" runat="server" Text="Server To Client Test" OnClick="Button1_Click" />
        <br /><br />
        <ul id="discussion"/>


    </form>
</body>
</html>

default.aspx.cs

using System;
using System.Linq;
using Hubs;
using Microsoft.AspNet.SignalR;

namespace Signalr2
{
    public partial class _default : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {

        }

        protected void Button1_Click(object sender, EventArgs e)
        {

            //test 1
            IHubContext context = GlobalHost.ConnectionManager.GetHubContext<TestHub>();
            context.Clients.All.broadcastMessage("Now", DateTime.Now.ToString());

            //test 2
            IHubContext context2 = GlobalHost.ConnectionManager.GetHubContext<TestHub>();
            context2.Clients.All.Send("Now", DateTime.Now.ToString());

            //test 3
            TestHub.Send2("Now", DateTime.Now.ToString());

            string test = "";

        }
    }
}

Answer 1

从客户端调用集线器的方法需要公开尝试从Send2内部切换到公共 -

信号员：第一次用户，无法获得“服务器按钮事件”到“中心”到“客户端”工作

1 个答案: