前台代码：html
<%
@ Page language="c#" Codebehind="WebMail.aspx.cs" AutoEventWireup="false" Inherits="MymailSys.WebMail" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" >
<HTML>
<HEAD>
<title>WebForm1</title>
<meta content="Microsoft Visual Studio .NET 7.1" name="GENERATOR">
<meta content="C#" name="CODE_LANGUAGE">
<meta content="JavaScript" name="vs_defaultClientScript">
<meta content="http://schemas.microsoft.com/intellisense/ie5" name="vs_targetSchema">
</HEAD>
<body MS_POSITIONING="GridLayout">
<form id="Form1" method="post" runat="server" enctype="multipart/form-data">
<FONT face="宋体">
<asp:label id="Label2" style="Z-INDEX: 101; LEFT: 224px; POSITION: absolute; TOP: 16px" runat="server" Width="292px" Font-Names="隶书" Font-Size="XX-Large">邮件发送系统</asp:label>
<TABLE id="Table1" style="Z-INDEX: 102; LEFT: 80px; WIDTH: 606px; POSITION: absolute; TOP: 96px; HEIGHT: 341px" cellSpacing="1" cellPadding="1" width="606" align="left" border="1">
<TR>
<TD style="WIDTH: 178px; HEIGHT: 21px" colSpan="2"><asp:label id="lblShowMsg" runat="server" Width="99px" ForeColor="Red"></asp:label></TD>
<TD style="WIDTH: 178px; HEIGHT: 21px"><FONT face="宋体"></FONT></TD>
</TR>
<TR>
<TD style="WIDTH: 122px"><asp:label id="Label1" runat="server" Width="92px">发件人：</asp:label></TD>
<TD><asp:textbox id="tbFrom" runat="server"></asp:textbox></TD>
<TD><asp:requiredfieldvalidator id="RequiredFieldValidator1" runat="server" Width="156px" ControlToValidate="tbFrom" ErrorMessage="发件人不能为空！" Height="26px"></asp:requiredfieldvalidator></TD>
</TR>
<TR>
<TD style="WIDTH: 122px"><FONT face="宋体">收件人：</FONT></TD>
<TD><asp:textbox id="tbTo" runat="server"></asp:textbox></TD>
<TD><FONT face="宋体"><asp:requiredfieldvalidator id="RequiredFieldValidator2" runat="server" Width="152px" ControlToValidate="tbTo" ErrorMessage="收件人不能为空！" Height="26px"></asp:requiredfieldvalidator></FONT></TD>
</TR>
<TR>
<TD style="WIDTH: 122px"><FONT face="宋体">邮件主题：</FONT></TD>
<TD><asp:textbox id="tbSubject" runat="server"></asp:textbox></TD>
<TD><asp:requiredfieldvalidator id="RequiredFieldValidator3" runat="server" Width="160px" ControlToValidate="tbSubject" ErrorMessage="邮件主题不能为空！" Height="26px"></asp:requiredfieldvalidator></TD>
</TR>
<TR>
<TD style="WIDTH: 122px">邮件服务器:</TD>
<TD><asp:textbox id="tbServer" runat="server"></asp:textbox></TD>
<TD></TD>
</TR>
<TR>
<TD style="WIDTH: 122px">邮件用户名称:</TD>
<TD><asp:textbox id="tbUserName" runat="server"></asp:textbox></TD>
<TD><asp:requiredfieldvalidator id="RequiredFieldValidator5" runat="server" ControlToValidate="tbUserName" ErrorMessage="用户名不能为空!"></asp:requiredfieldvalidator></TD>
</TR>
<TR>
<TD style="WIDTH: 122px">密码:</TD>
<TD><asp:textbox id="tbPass" runat="server" TextMode="Password"></asp:textbox></TD>
<TD><asp:requiredfieldvalidator id="RequiredFieldValidator6" runat="server" ControlToValidate="tbPass" ErrorMessage="密码不能为空!"></asp:requiredfieldvalidator></TD>
</TR>
<TR>
<TD style="WIDTH: 122px"><FONT face="宋体">优先级:
<asp:dropdownlist id="ddlp" runat="server">
<asp:ListItem Value="高">高</asp:ListItem>
<asp:ListItem Value="低">低</asp:ListItem>
<asp:ListItem Value="普通">普通</asp:ListItem>
</asp:dropdownlist></FONT></TD>
<TD><FONT face="宋体">邮件格式：
<asp:dropdownlist id="ddlB" runat="server">
<asp:ListItem Value="Text">Text</asp:ListItem>
<asp:ListItem Value="Html">Html</asp:ListItem>
</asp:dropdownlist></FONT></TD>
<TD></TD>
</TR>
<TR>
<TD style="WIDTH: 122px">邮件附件：</TD>
<TD colSpan="2"><INPUT id="FileSelect" style="WIDTH: 282px; HEIGHT: 22px" type="file" size="27" name="File1" runat="server"></TD>
</TR>
<TR>
<TD style="WIDTH: 178px" colSpan="3"><FONT face="宋体">邮件内容：</FONT></TD>
</TR>
<TR>
<TD style="WIDTH: 178px" colSpan="3"><FONT face="宋体"><asp:textbox id="tbBody" runat="server" Width="594px" Height="167px" TextMode="MultiLine"></asp:textbox></FONT></TD>
</TR>
<TR>
<TD style="WIDTH: 235px" colSpan="3"><asp:button id="btnSubmit" runat="server" Text="发送"></asp:button><FONT face="宋体"></FONT></TD>
</TR>
</TABLE>
</form>
</FONT>
</body>
</HTML>
using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
using System.Web.Mail;
namespace MymailSys
{
/**//// <summary>
/// WebForm1 的摘要说明。
/// </summary>
public class WebMail : System.Web.UI.Page
{
protected System.Web.UI.WebControls.TextBox tbBody;
protected System.Web.UI.WebControls.DropDownList ddlB;
protected System.Web.UI.WebControls.DropDownList ddlp;
protected System.Web.UI.WebControls.RequiredFieldValidator RequiredFieldValidator3;
protected System.Web.UI.WebControls.TextBox tbSubject;
protected System.Web.UI.WebControls.RequiredFieldValidator RequiredFieldValidator2;
protected System.Web.UI.WebControls.TextBox tbTo;
protected System.Web.UI.WebControls.RequiredFieldValidator RequiredFieldValidator1;
protected System.Web.UI.WebControls.TextBox tbFrom;
protected System.Web.UI.WebControls.Label Label1;
protected System.Web.UI.WebControls.Label lblShowMsg;
protected System.Web.UI.WebControls.Label Label2;
protected System.Web.UI.HtmlControls.HtmlForm Form1;
protected System.Web.UI.WebControls.TextBox tbServer;
protected System.Web.UI.WebControls.TextBox tbUserName;
protected System.Web.UI.WebControls.TextBox tbPass;
protected System.Web.UI.WebControls.RequiredFieldValidator RequiredFieldValidator5;
protected System.Web.UI.WebControls.RequiredFieldValidator RequiredFieldValidator6;
protected System.Web.UI.WebControls.Button btnSubmit;
protected System.Web.UI.HtmlControls.HtmlInputFile FileSelect;
protected System.Web.UI.HtmlControls.HtmlForm Form2;
private void Page_Load(object sender, System.EventArgs e)
{
// 在此处放置用户代码以初始化页面
}
Web 窗体设计器生成的代码#region Web 窗体设计器生成的代码
override protected void OnInit(EventArgs e)
{
//
// CODEGEN: 该调用是 ASP.NET Web 窗体设计器所必需的。
//
InitializeComponent();
base.OnInit(e);
}
/**//// <summary>
/// 设计器支持所需的方法 - 不要使用代码编辑器修改
/// 此方法的内容。
/// </summary>
private void InitializeComponent()
{
this.btnSubmit.Click += new System.EventHandler(this.btnSubmit_Click);
this.Load += new System.EventHandler(this.Page_Load);
}
#endregion
private void btnSubmit_Click(object sender, System.EventArgs e)
{
//SmtpMail.Send("shaozhd@263.net","shaozhd@263.net","Test","Hello");
MailMessage m = new MailMessage();
m.From = tbFrom.Text;
m.To = tbTo.Text;
m.Subject = tbSubject.Text;
m.Body = tbBody.Text;
//优先级
switch(ddlp.SelectedIndex)
{
case 0:
<%@ Page language="c#" Codebehind="WebMail.aspx.cs" AutoEventWireup="false" Inherits="MymailSys.WebMail" %><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" ><HTML> <HEAD> <title>WebForm1</title> <meta content="Microsoft Visual Studio .NET 7.1" name="GENERATOR"> <meta content="C#" name="CODE_LANGUAGE"> <meta content="JavaScript" name="vs_defaultClientScript"> <meta content="http://schemas.microsoft.com/intellisense/ie5" name="vs_targetSchema"> </HEAD> <body MS_POSITIONING="GridLayout"> <form id="Form1" method="post" runat="server" enctype="multipart/form-data"> <FONT face="宋体"> <asp:label id="Label2" style="Z-INDEX: 101; LEFT: 224px; POSITION: absolute; TOP: 16px" runat="server" Width="292px" Font-Names="隶书" Font-Size="XX-Large">邮件发送系统</asp:label> <TABLE id="Table1" style="Z-INDEX: 102; LEFT: 80px; WIDTH: 606px; POSITION: absolute; TOP: 96px; HEIGHT: 341px" cellSpacing="1" cellPadding="1" width="606" align="left" border="1"> <TR> <TD style="WIDTH: 178px; HEIGHT: 21px" colSpan="2"><asp:label id="lblShowMsg" runat="server" Width="99px" ForeColor="Red"></asp:label></TD> <TD style="WIDTH: 178px; HEIGHT: 21px"><FONT face="宋体"></FONT></TD> </TR> <TR> <TD style="WIDTH: 122px"><asp:label id="Label1" runat="server" Width="92px">发件人：</asp:label></TD> <TD><asp:textbox id="tbFrom" runat="server"></asp:textbox></TD> <TD><asp:requiredfieldvalidator id="RequiredFieldValidator1" runat="server" Width="156px" ControlToValidate="tbFrom" ErrorMessage="发件人不能为空！" Height="26px"></asp:requiredfieldvalidator></TD> </TR> <TR> <TD style="WIDTH: 122px"><FONT face="宋体">收件人：</FONT></TD> <TD><asp:textbox id="tbTo" runat="server"></asp:textbox></TD> <TD><FONT face="宋体"><asp:requiredfieldvalidator id="RequiredFieldValidator2" runat="server" Width="152px" ControlToValidate="tbTo" ErrorMessage="收件人不能为空！" Height="26px"></asp:requiredfieldvalidator></FONT></TD> </TR> <TR> <TD style="WIDTH: 122px"><FONT face="宋体">邮件主题：</FONT></TD> <TD><asp:textbox id="tbSubject" runat="server"></asp:textbox></TD> <TD><asp:requiredfieldvalidator id="RequiredFieldValidator3" runat="server" Width="160px" ControlToValidate="tbSubject" ErrorMessage="邮件主题不能为空！" Height="26px"></asp:requiredfieldvalidator></TD> </TR> <TR> <TD style="WIDTH: 122px">邮件服务器:</TD> <TD><asp:textbox id="tbServer" runat="server"></asp:textbox></TD> <TD></TD> </TR> <TR> <TD style="WIDTH: 122px">邮件用户名称:</TD> <TD><asp:textbox id="tbUserName" runat="server"></asp:textbox></TD> <TD><asp:requiredfieldvalidator id="RequiredFieldValidator5" runat="server" ControlToValidate="tbUserName" ErrorMessage="用户名不能为空!"></asp:requiredfieldvalidator></TD> </TR> <TR> <TD style="WIDTH: 122px">密码:</TD> <TD><asp:textbox id="tbPass" runat="server" TextMode="Password"></asp:textbox></TD> <TD><asp:requiredfieldvalidator id="RequiredFieldValidator6" runat="server" ControlToValidate="tbPass" ErrorMessage="密码不能为空!"></asp:requiredfieldvalidator></TD> </TR> <TR> <TD style="WIDTH: 122px"><FONT face="宋体">优先级: <asp:dropdownlist id="ddlp" runat="server"> <asp:ListItem Value="高">高</asp:ListItem> <asp:ListItem Value="低">低</asp:ListItem> <asp:ListItem Value="普通">普通</asp:ListItem> </asp:dropdownlist></FONT></TD> <TD><FONT face="宋体">邮件格式： <asp:dropdownlist id="ddlB" runat="server"> <asp:ListItem Value="Text">Text</asp:ListItem> <asp:ListItem Value="Html">Html</asp:ListItem> </asp:dropdownlist></FONT></TD> <TD></TD> </TR> <TR> <TD style="WIDTH: 122px">邮件附件：</TD> <TD colSpan="2"><INPUT id="FileSelect" style="WIDTH: 282px; HEIGHT: 22px" type="file" size="27" name="File1" runat="server"></TD> </TR> <TR> <TD style="WIDTH: 178px" colSpan="3"><FONT face="宋体">邮件内容：</FONT></TD> </TR> <TR> <TD style="WIDTH: 178px" colSpan="3"><FONT face="宋体"><asp:textbox id="tbBody" runat="server" Width="594px" Height="167px" TextMode="MultiLine"></asp:textbox></FONT></TD> </TR> <TR> <TD style="WIDTH: 235px" colSpan="3"><asp:button id="btnSubmit" runat="server" Text="发送"></asp:button><FONT face="宋体"></FONT></TD> </TR> </TABLE> </form> </FONT> </body></HTML>后台代码：cs
using System;using System.Collections;using System.ComponentModel;using System.Data;using System.Drawing;using System.Web;using System.Web.SessionState;using System.Web.UI;using System.Web.UI.WebControls;using System.Web.UI.HtmlControls;using System.Web.Mail;namespace MymailSys{ /**//// <summary> /// WebForm1 的摘要说明。 /// </summary> public class WebMail : System.Web.UI.Page { protected System.Web.UI.WebControls.TextBox tbBody; protected System.Web.UI.WebControls.DropDownList ddlB; protected System.Web.UI.WebControls.DropDownList ddlp; protected System.Web.UI.WebControls.RequiredFieldValidator RequiredFieldValidator3; protected System.Web.UI.WebControls.TextBox tbSubject; protected System.Web.UI.WebControls.RequiredFieldValidator RequiredFieldValidator2; protected System.Web.UI.WebControls.TextBox tbTo; protected System.Web.UI.WebControls.RequiredFieldValidator RequiredFieldValidator1; protected System.Web.UI.WebControls.TextBox tbFrom; protected System.Web.UI.WebControls.Label Label1; protected System.Web.UI.WebControls.Label lblShowMsg; protected System.Web.UI.WebControls.Label Label2; protected System.Web.UI.HtmlControls.HtmlForm Form1; protected System.Web.UI.WebControls.TextBox tbServer; protected System.Web.UI.WebControls.TextBox tbUserName; protected System.Web.UI.WebControls.TextBox tbPass; protected System.Web.UI.WebControls.RequiredFieldValidator RequiredFieldValidator5; protected System.Web.UI.WebControls.RequiredFieldValidator RequiredFieldValidator6; protected System.Web.UI.WebControls.Button btnSubmit; protected System.Web.UI.HtmlControls.HtmlInputFile FileSelect; protected System.Web.UI.HtmlControls.HtmlForm Form2; private void Page_Load(object sender, System.EventArgs e) { // 在此处放置用户代码以初始化页面 } Web 窗体设计器生成的代码#region Web 窗体设计器生成的代码 override protected void OnInit(EventArgs e) { // // CODEGEN: 该调用是 ASP.NET Web 窗体设计器所必需的。 // InitializeComponent(); base.OnInit(e); } /**//// <summary> /// 设计器支持所需的方法 - 不要使用代码编辑器修改 /// 此方法的内容。 /// </summary> private void InitializeComponent() { this.btnSubmit.Click += new System.EventHandler(this.btnSubmit_Click); this.Load += new System.EventHandler(this.Page_Load); } #endregion private void btnSubmit_Click(object sender, System.EventArgs e) { //SmtpMail.Send("shaozhd@263.net","shaozhd@263.net","Test","Hello"); MailMessage m = new MailMessage(); m.From = tbFrom.Text; m.To = tbTo.Text; m.Subject = tbSubject.Text; m.Body = tbBody.Text; //优先级 switch(ddlp.SelectedIndex) { case 0: