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Wednesday, 31 August 2016

Contact Us Form in Asp.net C#

8/31/2016 - By Pranav Singh 0

This article will show you how you can how you can create and enquirer form or contact us form in asp.net using gmail as smtp server and c#.


So for this article first we will create a new asp.net application and add the below code into the page.

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="WebForm13.aspx.cs" Inherits="WebApplication7.WebForm13" %>

<!DOCTYPE html>

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title>Contact Us Form in Asp.net C#</title>
</head>
<body>
    <form id="form1" runat="server">
        <div>
            <table width="100%" border="1">
                <tr>
                    <td align="right" colspan="2" style="text-align: center"><strong>Contact Us Form</strong></td>
                </tr>
                <tr>
                    <td align="right">&nbsp;</td>
                    <td align="left">
                        <asp:Label ID="lblmessage" runat="server" Style="color: #FF3300"></asp:Label>
                    </td>
                </tr>
                <tr>
                    <td align="right">Name :</td>
                    <td align="left">
                        <asp:TextBox ID="txtName" runat="server" Width="250px"></asp:TextBox>
                    </td>
                </tr>
                <tr>
                    <td align="right">Your Email id :</td>
                    <td align="left">
                        <asp:TextBox ID="txtEmailId" runat="server" Width="250px"></asp:TextBox>
                    </td>
                </tr>
                <tr>
                    <td align="right">Phone No :</td>
                    <td align="left">
                        <asp:TextBox ID="txtPhoneno" runat="server" Width="250px"></asp:TextBox>
                    </td>
                </tr>
                <tr>
                    <td align="right">Subject :</td>
                    <td align="left">
                        <asp:TextBox ID="txtsubject" runat="server" Width="250px"></asp:TextBox>
                    </td>
                </tr>
                <tr>
                    <td align="right">Message Body :</td>
                    <td align="left">
                        <asp:TextBox ID="txtmessage" runat="server" Height="103px" TextMode="MultiLine"
                            Width="250px"></asp:TextBox>
                    </td>
                </tr>
                <tr>
                    <td align="center" colspan="2">
                        <asp:Button ID="Button1" runat="server"
                            OnClick="Button1_Click" Text="Send Message" /></td>
                </tr>
            </table>
        </div>
    </form>
</body>
</html>

In above code I have created a contact us form with curtain fields like name, email id etc. Now generate the click event and add the below code.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Net.Mail;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

namespace WebApplication7
{
    public partial class WebForm13 : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {

        }

        protected void Button1_Click(object sender, EventArgs e)
        {
            //Send to owner
            SendEnquiry(txtName.Text, txtEmailId.Text, txtPhoneno.Text, txtsubject.Text, txtmessage.Text);
        }
        public void SendEnquiry(string name, string emailid, string phoneno, string subject, string message)
        {
            try
            {
                MailMessage mail = new MailMessage();
                mail.To.Add(txtEmailId.Text);
                mail.From = new MailAddress("youemail@gmail.com");
                mail.Subject = subject;
                string userMessage = "";
                userMessage = "<br/>Name :" + name;
                userMessage = userMessage + "<br/>Email Id: " + emailid;
                userMessage = userMessage + "<br/>Phone No: " + phoneno;
                userMessage = userMessage + "<br/>Message: " + message;
                string Body = "Hi, <br/><br/> A new enquiry by user. Detail is as follows:<br/></br> " + userMessage + "<br/><br/>Thanks";
                mail.Body = Body;
                mail.IsBodyHtml = true;
                SmtpClient smtp = new SmtpClient();
                smtp.Host = "smtp.gmail.com"; //SMTP Server Address of gmail
                smtp.Port = 587;
                smtp.Credentials = new System.Net.NetworkCredential("youemail@gmail.com", "password");
                // Smtp Email ID and Password For authentication
                smtp.EnableSsl = true;
                smtp.Send(mail);
                lblmessage.Text = "Thank you for contacting us.";
            }
            catch
            {
                lblmessage.Text = "Error............";
            }
        }
    }
}
  
In above code I have prepared a function for sending the mail. This function will send the enquiry to the admin of the website.

So in above code I have used the smtp of gmail for sending the email.  Now one this after execution if you are getting error message as shown below:

The SMTP server requires a secure connection or the client was not authenticated. The server response was: 5.5.1 Authentication Required. Learn more at

Then follow the below link to resolve the error.



Now we have done run the application to check the output.


Now check the email send as enquirer by user.


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