signaler2asp.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，以及在另一部分视图中的一个聊天页面，我有不同的风格发送信息和接收信息。如何将此样式设置为发送和接收的邮件？

互联网上的所有信件都是在一个视图中聊天。所以没有不同的风格。

我使用此链接：https://learn.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，根据该标志，您可以在来自服务器和发送到服务器的消息之间进行区分。您还需要一些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>');                      
}
};

示例css：

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

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

您的集线器：

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);
}
}