A Feedback Form in ASP.NET

The ASPSmith

By Steven Smith

It's very easy to build an email form in ASP.NET. So easy, in fact, that I'm not going to waste a whole lot of time on the object model or other low level considerations. Instead, I'm just going to present the code and let you use it as you see fit. You can click on the Example link above, but please only submit the form if you are actually intent on becoming a writer for ASPAlliance.com. I get enough junk mail from losers after free web hosting as it is...

join.aspx
1 <%@ Page language="c#" Codebehind="join.aspx.cs" AutoEventWireup="false" Inherits="ASPAlliance.Pages.join" Trace="false" Debug="false" %>
2 <%@ Register TagPrefix="SSTemplate" tagname="showHeader"
3 src="/controls/showHeader.ascx"%>
4 <%@ Register TagPrefix="SSTemplate" tagname="showFooter"
5 src="/controls/showFooter.ascx"%>
6 <SSTemplate:showHeader id="header" title="Become a Columnist" runat="server" />
7 <form method="post" runat="server">
8 
9 Become an ASPAlliance Columnist!
10 
11 If you think you would make a valuable addition to the ASP Alliance as a
12 columnist, please fill out the form below. In the box provided, please copy and
13 paste a complete article that you would post on your column. This article will
14 be reviewed by our columnists. If we accept it, you will become an ASPAlliance
15 columnist.
16 
17 
18 This is not just free web space! You must be willing to publish quality articles
19 related to ASP, .NET, or other Internet technologies.
20 
21 ASPAlliance lets you retain ownership and copyright of all of your material!You
22 can submit it to other sites, publish it in articles, and basically do whatever
23 you want with it. However, ASPAlliance will keep unmodified copies of your
24 articles indefinitely as a service to our readers.
25 
26 
27 Some of the benefits of being an AspAlliance.com columnist include free web
28 hosting with ASP and ASP.NET support, SQL Server access (SQL2000), and a POP3
29 mail account, if desired. You're welcome to promote yourself as an author or
30 developer or whatever you like, provided that your column provides value to
31 AspAlliance visitors as well. Columnists are encouraged to display ads on their
32 sites, which help support the site and provide modest royalties to the
33 columnists. Also, all columnist sites must include a reference to the
34 ASPAlliance, and by publishing material on this site, you grant ASPAlliance.com
35 the right to host such material indefinitely, regardless of whether or not you
36 remain a member/columnist (as noted above).
37 
38 <table border="1" bordercolor="red" cellspacing="0" cellpadding="2">
39 <tr>
40 <td width="336">
41 Full Name
42 </td>
43 <td>
44 <asp:textbox id="fullname" runat="Server"></asp:textbox>
45 </td>
46 <td>
47 <asp:requiredfieldvalidator id="fullname_required" runat="Server" controltovalidate="fullname" errormessage="Full name is required."></asp:requiredfieldvalidator>
48 </td>
49 </tr>
50 <tr>
51 <td width="336">
52 How long have you been developing dynamic Internet applications?
53 </td>
54 <td>
55 <asp:dropdownlist id="howlong" runat="Server">
56 <asp:listitem value=""></asp:listitem>
57 <asp:listitem value="Just Starting"></asp:listitem>
58 <asp:listitem value="1-3 Months"></asp:listitem>
59 <asp:listitem value="4-6 Months"></asp:listitem>
60 <asp:listitem value="6-12 Months"></asp:listitem>
61 <asp:listitem value="Over a Year"></asp:listitem>
62 <asp:listitem value="Too Long ;) "></asp:listitem>
63 </asp:dropdownlist>
64 </td>
65 <td>
66 <asp:requiredfieldvalidator id="howlong_required" runat="Server" controltovalidate="howlong" errormessage="Please select an item from the list."></asp:requiredfieldvalidator>
67 </td>
68 </tr>
69 <tr>
70 <td width="336">
71 Email
72 </td>
73 <td>
74 <asp:textbox id="email" runat="server" width="150"></asp:textbox>
75 </td>
76 <td>
77 <asp:requiredfieldvalidator id="email_required" runat="Server" controltovalidate="email" errormessage="Email is required."></asp:requiredfieldvalidator>
78 </td>
79 </tr>
80 <tr>
81 <td width="336">
82 Requested Username / Folder name 
83 This is used both for your login to the site and as your folder name, e.g.
84 www.aspalliance.com/folder/. This will also be used as your POP3 account, if
85 you request one.
86 
87 </td>
88 <td>
89 <asp:textbox id="username" runat="server" width="150"></asp:textbox>
90 </td>
91 <td>
92 <asp:requiredfieldvalidator id="username_required" runat="Server" controltovalidate="username" errormessage="A username/foldername is required."></asp:requiredfieldvalidator>
93 </td>
94 </tr>
95 <tr>
96 <td width="336">
97 Requested POP Account (username@aspalliance.com)
98 </td>
99 <td>
100 <asp:dropdownlist id="pop_requested" runat="Server">
101 <asp:listitem value=""></asp:listitem>
102 <asp:listitem value="No, I don't need a POP account."></asp:listitem>
103 <asp:listitem value="Yes, please give me a POP account."></asp:listitem>
104 </asp:dropdownlist>
105 </td>
106 <td>
107 <asp:requiredfieldvalidator id="pop_requested_required" runat="Server" controltovalidate="pop_requested" errormessage="You must select Yes or No."></asp:requiredfieldvalidator>
108 </td>
109 </tr>
110 <tr>
111 <td width="336">
112 Requested Access Method
113 </td>
114 <td>
115 <asp:listbox id="access" runat="Server" selectionmode="Multiple">
116 <asp:ListItem Value="FTP">FTP</asp:ListItem>
117 <asp:ListItem Value="Frontpage Server Extensions (FPSE)">Frontpage Server Extensions
118 (FPSE)</asp:ListItem>
119 </asp:listbox>
120 </td>
121 <td>
122 <asp:requiredfieldvalidator id="access_required" runat="Server" controltovalidate="access" errormessage="Please select at least one access method."></asp:requiredfieldvalidator>
123 </td>
124 </tr>
125 <tr>
126 <td width="336">
127 Sample Article
128 </td>
129 <td>
130 <asp:textbox id="sample" runat="Server" textmode="MultiLine" rows="10" columns="60"></asp:textbox>
131 </td>
132 <td>
133 <asp:requiredfieldvalidator id="sample_required" runat="Server" controltovalidate="sample" errormessage="A sample article is required."></asp:requiredfieldvalidator>
134 </td>
135 </tr>
136 </table>
137 <asp:button id="btnSubmit" text="Send" runat="Server"></asp:button>
138 
139 How does this page work? Click <a href="http://www.aspalliance.com/stevesmith/articles/how_join.asp">
140 here</a> to see!
141 
142 </form>
143 <SSTemplate:showFooter id="footer" runat="server" />

join.aspx.cs
1 namespace ASPAlliance.Pages
2 {
3 using System;
4 using System.Web.Mail;
5 using System.Collections;
6 using System.ComponentModel;
7 using System.Data;
8 using System.Drawing;
9 using System.Web;
10 using System.Web.SessionState;
11 using System.Web.UI;
12 using System.Web.UI.WebControls;
13 using System.Web.UI.HtmlControls;
14
15 /// <summary>
16 /// Summary description for join.
17 /// </summary>
18 public class join : System.Web.UI.Page
19 {
20 protected System.Web.UI.WebControls.Button btnSubmit;
21 protected System.Web.UI.WebControls.RequiredFieldValidator sample_required;
22 protected System.Web.UI.WebControls.TextBox sample;
23 protected System.Web.UI.WebControls.RequiredFieldValidator access_required;
24 protected System.Web.UI.WebControls.ListBox access;
25 protected System.Web.UI.WebControls.RequiredFieldValidator pop_requested_required;
26 protected System.Web.UI.WebControls.DropDownList pop_requested;
27 protected System.Web.UI.WebControls.RequiredFieldValidator username_required;
28 protected System.Web.UI.WebControls.TextBox username;
29 protected System.Web.UI.WebControls.RequiredFieldValidator email_required;
30 protected System.Web.UI.WebControls.TextBox email;
31 protected System.Web.UI.WebControls.RequiredFieldValidator howlong_required;
32 protected System.Web.UI.WebControls.DropDownList howlong;
33 protected System.Web.UI.WebControls.RequiredFieldValidator fullname_required;
34 protected System.Web.UI.WebControls.TextBox fullname;
35
36 public join()
37 {
38 Page.Init += new System.EventHandler(Page_Init);
39 }
40
41 protected void Page_Load(object sender, EventArgs e)
42 {
43 if (!IsPostBack)
44 {
45 //
46 // Evals true first time browser hits the page
47 //
48 }
49 }
50
51 protected void Page_Init(object sender, EventArgs e)
52 {
53 //
54 // CODEGEN: This call is required by the ASP+ Windows Form Designer.
55 //
56 InitializeComponent();
57 }
58
59 /// <summary>
60 /// Required method for Designer support - do not modify
61 /// the contents of this method with the code editor.
62 /// </summary>
63 private void InitializeComponent()
64 {
65 this.btnSubmit.Click += new System.EventHandler(this.btnSubmit_Click);
66 this.Load += new System.EventHandler(this.Page_Load);
67
68 }
69
70 public void btnSubmit_Click (object sender, System.EventArgs e)
71 {
72 String message="";
73 String access_methods="";
74 int i;
75 if (Page.IsValid) {
76 Trace.Write("Submit", "Page is valid -- send email.");
77 message += "Full Name: " + fullname.Text + "\n";
78 message += "How Long?: " + howlong.SelectedItem.Text + "\n";
79 message += "Email: " + email.Text + "\n";
80 message += "Request POP Account?: " + pop_requested.SelectedItem.Text + "\n";
81 message += "Requested Username / Web name / POP3 Account(if requested): " + username.Text + "\n";
82 message += "Requested Access Method(s): ";
83 for (i=0;i<access.Items.Count;i++) {
84 if(access.Items[i].Selected) {
85 if (access_methods!="") {
86 access_methods+=", ";
87 }
88 access_methods += access.Items[i].Text;
89 }
90 }
91 message += access_methods + "\n";
92 message += "Sample Article: \n" + sample.Text;
93 MailMessage Mailer = new MailMessage();
94 Mailer.From = email.Text;
95 Mailer.To = "columnist-join@aspalliance.com";
96 Mailer.Subject = "ASPAlliance Join Request";
97 Mailer.Body = message;
98 SmtpMail.SmtpServer = "localhost";
99 SmtpMail.Send(Mailer);
100 Server.Transfer("jointhankyou.aspx");
101 // Response.Redirect("jointhankyou.aspx");
102 }
103 }
104 }
105 }

Reference Links:

Sending Email From ASP.NET Pages

ASP.NET Developer's Cookbook, By Steven Smith, Rob Howard, ASPAlliance.com


Steven Smith, MCSE + Internet (4.0) Last Modified: 6/12/2009 10:58:22 AM History: 6/12/2009 10:58:22 AM