c# - asp.net c#visual studio 2010 发送电子邮件的问题 - 按钮什么也不做

Question

嗨，我在从表单发送电子邮件时遇到问题，我的按钮没有任何作用，请帮助！我尝试了不同的解决方案，并且 smtp 设置端口但仍然无法正常工作，任何帮助将不胜感激，这是我的代码：

      Aspx side:

      <asp:Content ID="HeaderContent" runat="server" ContentPlaceHolderID="HeadContent">
    <style type="text/css">
        .style2
        {
            width: 341px;
        }
    </style>
        </asp:Content>
      <asp:Content ID="BodyContent" runat="server" ContentPlaceHolderID="MainContent">
    <h2>
      Test
    </h2>
    <p>
  <h2>Contact Us</h2>
<asp:Panel ID="Panel1" runat="server" DefaultButton="btnSubmit">
              <p>
        Please Fill the Following to Send Mail.</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 />
        Subject:
        <asp:RequiredFieldValidator ID="RequiredFieldValidator2" runat="server" ErrorMessage="*"
            ControlToValidate="YourSubject" ValidationGroup="save" /><br />
        <asp:TextBox ID="YourSubject" runat="server" Width="400px" /><br />
        Your Question:
        <asp:RequiredFieldValidator ID="RequiredFieldValidator3" runat="server" ErrorMessage="*"
            ControlToValidate="Comments" ValidationGroup="save" /><br />
        <asp:TextBox ID="Comments" runat="server" 
                TextMode="MultiLine" Rows="10" Width="400px" />
    </p>
    <p>
        <asp:Button ID="btnSubmit" runat="server" Text="Send" 
                    OnClick="Button1_Click" ValidationGroup="save" />
    </p>
</asp:Panel>
<p>
    <asp:Label ID="DisplayMessage" runat="server" Visible="false" />
</p>  `enter code here`
</asp:Content>


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

public partial class About : System.Web.UI.Page
{
    protected void SendMail()
    {


  // your email address
 var fromAddress = YourEmail.Text.ToString();
 // any address where the email will be sending
 var toAddress = "my email address";

        //Password of your gmail address
        const string toPassword = "my password";
        // Passing the values and make a email formate to display
        string subject = YourSubject.Text.ToString();
        string body = "From: " + YourName.Text + "\n";
        body += "Email: " + YourEmail.Text + "\n";
        body += "Subject: " + YourSubject.Text + "\n";
        body += "Question: \n" + Comments.Text + "\n";
        // smtp settings
        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(toAddress, toPassword);
            smtp.Timeout = 20000;
        }
        // Passing values to smtp object
        smtp.Send(fromAddress, toAddress, subject, body);
    }

    protected void Button1_Click(object sender, EventArgs e)
    {
        try
        {
            //here on button click what will done 
            SendMail();
            DisplayMessage.Text = "Your Comments after sending the mail";
            DisplayMessage.Visible = true;
            YourSubject.Text = "";
            YourEmail.Text = "";
            YourName.Text = "";
            Comments.Text = "";
        }
        catch (Exception) { }
    }
}