TellAFriend form in ASP.NET and C#

• Download source code - 138.1 KB

Introduction

This code works well with a GMail account.

Background

This code is based on the 3.5 and 4.0 frameworks.

Using the code

<asp:Panel ID="Panel1" runat="server" DefaultButton="btnSubmit">
    <p>
        Please Fill the Following to share the information with friend.</p>
    <p>
        Your name:
        <asp:RequiredFieldValidator ID="RequiredFieldValidator11" 
            runat="server" ErrorMessage="*"
            ControlToValidate="YourName" ValidationGroup="save" /><br />
        <asp:TextBox ID="YourName" runat="server" Width="250px" /><br />
        Your email address:
        <asp:RequiredFieldValidator ID="RequiredFieldValidator1" runat="server" ErrorMessage="*"
            ControlToValidate="YourEmail" ValidationGroup="save" /><br />
        <asp:TextBox ID="YourEmail" runat="server" Width="250px" />
        <asp:RegularExpressionValidator runat="server" ID="RegularExpressionValidator23"
            SetFocusOnError="true" Text="Example: username@gmail.com" ControlToValidate="YourEmail"
            ValidationExpression="\w+([-+.']\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*" Display="Dynamic"
            ValidationGroup="save" /><br />
        Friend Name:
        <asp:RequiredFieldValidator ID="RequiredFieldValidator2" runat="server" ErrorMessage="*"
            ControlToValidate="txtboxFname" ValidationGroup="save" /><br />
        <asp:TextBox ID="txtboxFname" runat="server" Width="250px" /><br />
        Friend Email:
        <asp:RequiredFieldValidator ID="RequiredFieldValidator3" runat="server" ErrorMessage="*"
            ControlToValidate="txtboxFriendEmail" ValidationGroup="save" /><br />
        <asp:TextBox ID="txtboxFriendEmail" runat="server" Width="250px" />
        <asp:RegularExpressionValidator runat="server" 
            ID="RegularExpressionValidator1" SetFocusOnError="true"
            Text="Example: username@gmail.com" 
            ControlToValidate="txtboxFriendEmail" 
            ValidationExpression="\w+([-+.']\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*"
            Display="Dynamic" ValidationGroup="save" />
    </p>
    <p>
        <asp:Button ID="btnSubmit" runat="server" 
           Text="Send" OnClick="Button1_Click" ValidationGroup="save" />
    </p>
</asp:Panel>
<p>
    <asp:Label ID="lblMsgSend" runat="server" Visible="false" />
</p>

The server side code:

protected void SendMail()
{
    var fromAddress = YourEmail.Text.ToString();
    var toAddress = txtboxFriendEmail.Text.ToString();
    //password of your webmail email address gmail account password
    const string toPassword = "Password";
    string subject = YourName.Text.ToString() + " want to share the information";
    string body = "From: " + YourName.Text + "\n";
    body += "Email: " + YourEmail.Text + "\n";
    body += "To: " + txtboxFname.Text + "\n";
    body += "Message: \n Dear " + txtboxFname.Text + 
            "\n your friend: " + YourName.Text + 
            " want to share the information about the visa services " + 
            "of University of South Asia \n please visit " + 
            "the website www.usa.edu.pk \n than visa services";
    var smtp = new System.Net.Mail.SmtpClient();
    {
        smtp.Host = "smtp.gmail.com";
        smtp.Port = 587;
        smtp.EnableSsl = true;
        smtp.DeliveryMethod = System.Net.Mail.SmtpDeliveryMethod.Network;
        smtp.Credentials = new NetworkCredential("address@gmail.com", 
             toPassword);//gmail address from where you send the mail to other person 
        smtp.Timeout = 20000;
    }
    smtp.Send(fromAddress, toAddress, subject, body);
}

protected void Button1_Click(object sender, EventArgs e)
{
    try
    {
        SendMail();
        lblMsgSend.Text = "Your message send successfully to your friend";
        lblMsgSend.Visible = true;
        txtboxFriendEmail.Text = "";
        YourEmail.Text = "";
        YourName.Text = "";
        txtboxFname.Text = "";
    }
    catch (Exception) { }
}