如何获取HTML文本框值 [英] How to get HTML textbox value

问题描述

我正在尝试在网站中实现聊天功能。我在这里使用提示来获取客户名称。它工作正常，但问题是提示显示每个页面加载弹出窗口。我想通过文本框而不是提示来获取客户端名称。我该怎么办？



我正在尝试这个代码



我尝试过的：

I am trying to implement chatting features in a website. I used here prompt to get client name. Its working properly but problem is that "prompt" shows popup on every page load. I want to get client name by textbox not by the prompt. What should I do?

I am trying this code

What I have tried:

<div class="container">
        <input type="text" id="message" />
        <input type="button" id="sendmessage" value="Send" /><br />
        <button onclick="myFunction()">Try it</button>
        <input type="hidden" id="displayname" />
        <ul id="discussion"></ul>
    </div><script type="text/javascript">
       function myFunction() {
            // Declare a proxy to reference the hub.
            var chat = $.connection.chatHub;
            // Create a function that the hub can call to broadcast messages.
            chat.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('<strong>' + encodedName
                    + '</strong>:&nbsp;&nbsp;' + encodedMsg);
            };
            // 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();
                });
            });
        };
    </script>

推荐答案

.connection.chatHub;
//创建集线器可以调用广播消息的函数。
chat.client.broadcastMessage = function（name，message）{
// Html编码显示名称和消息。
var encodedName =

.connection.chatHub; // Create a function that the hub can call to broadcast messages. chat.client.broadcastMessage = function (name, message) { // Html encode display name and message. var encodedName =

（'< div />'）。text（name）.html（）;
var encodedMsg =

('<div />').text(name).html(); var encodedMsg =

（'< div />'）。text（message）.html（）;
//将消息添加到页面。

('<div />').text(message).html(); // Add the message to the page.

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