Getting error null value of hostname

Question

1.00/5 (3 votes)

See more:

1. My Html

HTML

<html>
<form class="form-horizontal" name="HnForm" novalidate>
    <h1>Hostname:</h1>
    <p id="hostname"></p>
    <button type="button" onclick="sendHostname()">Submit</button>
</form>

</html>

    function sendHostname() {
    var hostname = document.getElementById("hostname").innerText;
    var xhr = new XMLHttpRequest();
    xhr.open("POST", "/HN/GetHostname", true);
    xhr.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
    xhr.onload = function () {
        if (xhr.status === 200) {
            var response = xhr.responseText;
            console.log("Response from server:", response);
        }
    };
    xhr.send("hostname=" + encodeURIComponent(hostname));
}

2. My controller

C#

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using System.Net;

namespace HN.Controllers
{
    public class HNController : Controller
    {
        public ActionResult Index()
        {
            return View();
        }

        [HttpPost]
        public ActionResult GetHostname(string hostname)
        {
            return Content("Hostname received successfully", hostname.ToString());
        }
    }
}

What I have tried:

My Question why my hostname is null value?

Please help me

Posted 6-Jun-23 0:37am

ROPU_05051971

Updated 6-Jun-23 7:15am

PIEBALDconsult

v3

Add a Solution

1 solution

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Richard MacCutchan · Answer 1 · 2023-06-06T01:00:00

The HTML contains:

HTML

<p id="hostname"></p>
<button type="button" onclick="sendHostname()">Submit</button>

The Javascript has:

JavaScript

function sendHostname() {
var hostname = document.getElementById("hostname").innerText;

You have a blank paragraph with the id of "hostname", but it does not contain any innerText.