signalr2 asp.net ,vc5 如何为发送和接收的消息设置不同的 css 样式？

Question

我使用 ASP.NET MVC 5 和 SignalR 2。我在一个视图中有一个聊天页面，和另一个局部视图中的一个聊天页面，我对发送的消息和接收的消息有不同的风格。如何为发送和接收的消息设置此样式？

所有的网络信件都是一个聊天view.so没有不同的风格。

我用这个 link : https://docs.microsoft.com/en-us/aspnet/signalr/overview/getting-started/tutorial-getting-started-with-signalr-and-mvc

谢谢:)

    @{
    ViewBag.Title = "Chat";
}
<h2>Chat</h2>
<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>
@section scripts {
    <!--Script references. -->
    <!--The jQuery library is required and is referenced by default in _Layout.cshtml. -->
    <!--Reference the SignalR library. -->
    <script src="~/Scripts/jquery.signalR-2.1.0.min.js"></script>
    <!--Reference the autogenerated SignalR hub script. -->
    <script src="~/signalr/hubs"></script>
    <!--SignalR script to update the chat page and send messages.--> 
    <script>
        $(function () {
            // Reference the auto-generated proxy for the hub.  
            var chat = $.connection.chatHub;
            // Create a function that the hub can call back to display messages.
            chat.client.addNewMessageToPage = function (name, message) {
                // Add the message to the page. 
                $('#discussion').append('<li><strong>' + htmlEncode(name) 
                    + '</strong>: ' + htmlEncode(message) + '</li>');
            };
            // Get the user name and store it to prepend to messages.
            $('#displayname').val(prompt('Enter your name:', ''));
            // Set initial focus to message input box.  
            $('#message').focus();
            // Start the connection.
            $.connection.hub.start().done(function () {
                $('#sendmessage').click(function () {
                    // Call the Send method on the hub. 
                    chat.server.send($('#displayname').val(), $('#message').val());
                    // Clear text box and reset focus for next comment. 
                    $('#message').val('').focus();
                });
            });
        });
        // This optional function html-encodes messages for display in the page.
        function htmlEncode(value) {
            var encodedValue = $('<div />').text(value).html();
            return encodedValue;
        }
    </script>
}

Answer 1

您需要一个标志，您可以根据该标志区分来自服务器和发往服务器的消息。你还需要一些 css 来标记不同的消息。

样本：

chat.client.addNewMessageToPage = function (name, message, fromServer) {
                // Add the message to the page. 
               if(fromServer){
                  $('#discussion').append('<li class="messageFromServer">strong>'+htmlEncode(name)+'</strong>: '+htmlEncode(message) + '</li>');
                }
               else{
                  $('#discussion').append('<li class="messageToServer"><strong>'+htmlEncode(name)+'</strong>: '+htmlEncode(message)+'</li>');                      
                }
            };

样本css:

.messageFromServer{
   color:purple
}
.messageToServer{
  color:red

（你可以在 fiddler 上测试 css 东西： https://jsfiddle.net/ugrf0jea/7/)

您的中心：

public class ChatHub : Hub
{
    public void Send(string name, string message)
    {
        // Mark the message, that this is from other client. Only call methode "addNewMessageToPage" with this params on other clients(not on caller)
        Clients.Others.addNewMessageToPage(name, message, false); 

        // Mark message that this is from current client. Only call method addNewMessageToPage"  on caller cliebt
        Clients.Caller.addNewMessageToPage(name, message, false);
    }
}

signalr2 asp.net ,vc5 如何为发送和接收的消息设置不同的 css 样式？

signalr2 asp.net ,vc5 how to set different css styles for messages that sent and received?

asp.net-mvc-5

chat

signalr-2