unable to find chat hub server in user define function
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User61956409 posted
Hi erum,
You posted many threads discussed similar issue, I suggest that you can create and use a global proxy object to communicate with your hub instead of passing proxy object between functions.
Besides, if you'd like to implement sending private message functionality in your application by clicking a specific user from online user list, please refer to the following sample code.
<!DOCTYPE html> <html> <head> <title>SignalR Simple Chat</title> <style type="text/css"> .container { background-color: #99CCFF; border: thick solid #808080; padding: 20px; margin: 20px; } </style> </head> <body> <div class="container"> <input type="text" id="message" /> <input type="button" id="sendmessage" value="Send" /> <input type="hidden" id="displayname" /> <ul id="discussion"></ul> </div> <input type="hidden" id="connId" value="" /> <h2>Online Users</h2> <div class="container"> <!--<ul id="user_list"></ul>--> <div id="online"></div> </div> <br /> <br /> <div> <h2>Private Message</h2> <div id="user_id"></div> <input type="text" id="txtPrivateMessage" /> <input type="button" id="sendprivatemessage" value="Send Private Message" onclick="sendprivatemessage()" /> <input type="hidden" id="pconnId" value="" /> <ul id="privatemessagelogs"></ul> </div> <!--Script references. --> <!--Reference the jQuery library. --> <script src="Scripts/jquery-1.6.4.min.js"></script> <!--Reference the SignalR library. --> <script src="/Scripts/jquery.signalR-2.0.0.js"></script> <!--Reference the autogenerated SignalR hub script. --> <script src="/signalr/hubs"></script> <!--Add script to update the page and send messages.--> <script type="text/javascript"> var chat; $(function () { chat = $.connection.chatHub; chat.client.broadcastMessage = function (name, message) { var encodedName = $('<div />').text(name).html(); var encodedMsg = $('<div />').text(message).html(); $('#discussion').append('<li><strong>' + encodedName + '</strong>: ' + encodedMsg + '</li>'); }; //update online users chat.client.addNewuserToPage = function (ids) { $('#online').empty(); var conid = $("#connId").val(); $.each(ids, function (k, v) { console.log(v["Key"] + "/" + v["Value"]); if (v["Key"].toString() != conid.toString()) { $('#online').append('<strong>' + "<span onclick=getValue('" + v["Key"] + "','" + v["Value"] + "')>" + v["Key"] + "</span>" + " " + v["Value"] + "<BR>"); } }); } var username = prompt('Enter your name:', ''); $('#displayname').val(username); $('#message').focus(); //$.connection.hub.logging = true; $.connection.hub.start().done(function () { var conid = $.connection.hub.id; $("#connId").val(conid); chat.server.send($('#displayname').val(), conid); $('#sendmessage').click(function () { //chat.server.send($('#displayname').val(), $('#message').val()); chat.server.send($('#displayname').val(), $('#message').val(), conid); $('#message').val('').focus(); }); }); }); function getValue(userId, name) { $("#user_id").text("Name: " + name + "Connection Id: " + userId); $("#pconnId").val(userId); $("#txtPrivateMessage").val(""); $('#privatemessagelogs').empty(); //alert("ccc:" + userId); } function sendprivatemessage() { chat.server.sendPrivateMessage($('#displayname').val(), $("#pconnId").val(), $("#txtPrivateMessage").val()); $('#privatemessagelogs').append('<li><strong>You sent: </strong>: ' + $("#txtPrivateMessage").val() + '</li>'); } </script> </body> </html>Hub Class
public static List<KeyValuePair<string, string>> ConnectedIds = new List<KeyValuePair<string, string>>(); private string name = ""; public void Send(string name, string message, string connId) { Clients.AllExcept(connId).broadcastMessage(name, message); //Clients.Client(connId).addNewMessageToPage(name, message); } public void Send(string name, string connId) { ConnectedIds.Add(new KeyValuePair<string, string>(connId, name)); Clients.All.addNewuserToPage(ConnectedIds); } public void sendPrivateMessage(string name, string connId, string message) { Clients.Client(connId).broadcastMessage(name, message + " (private message)"); }Test Result:
With Regards,
Fei Han
- Marked as answer by Anonymous Thursday, October 7, 2021 12:00 AM
