You can get your chat box on your website using ASP.NET. The advantage of chat box is make websites and web applications more user interactive and provide a dynamic look too. The functionality of chat box in a website is increasing day by day, because it provides some extra functionalities and looks.

Now, we will explain about how to make Chat Box using ASP.NET.
For the first, Open Visual Studio>Create a new page (class file)
And then, Design your chat box (through HTML and CSS).

Coding (as shown below):

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
 
public partial class Default3 : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
    }
    protected void Button1_Click(object sender, EventArgs e)
    {
        Window1.Visible = true;
    }
 
    private string Chat
    {
        get
        {
            if (Application["a"] == null)
                Application["a"] = "";
            return Application["a"].ToString();
        }
        set
        {
           Application["a"] = value;
        }
    }
    protected void Timer1_Tick(object sender, EventArgs e)
    {
        Label1.Text = Chat;
    }
    protected void Button2_Click(object sender, EventArgs e)
    {
        Chat = TextBox1.Text +"<br/>"+ Chat;
    }
}


The chat box code that we explain here is a combination of GAIA Toolkit and Coding. We are doing this coding in C#.