Knowledge is power: sending mail in c#.net code

How do I send an email message from my ASP.NET page?
A: You can use the System.Web.Mail.MailMessage and the System.Web.Mail.SmtpMail class to send email in your ASPX pages. Below is a simple example of using this class to send mail in C# and VB.NET. In order to send mail through our mail server, you would want to make sure to set the static SmtpServer property of the SmtpMail class to mail-fwd.
C#

<html>
<head>
<title>Mail Test</title>
<head>
<Script> language="C#" runat="server">
private void Page_Load(Object sender, EventArgs e)
{
try
{
MailMessage mailObj = new MailMessage();
mailObj.From = "kemo@ess.com";
mailObj.To = "cnu@gmail.com";
mailObj.Subject = "hi";
mailObj.Body = "hi cnu .How is ur life going on.";
mailObj.BodyFormat = MailFormat.Text;
SmtpMail.SmtpServer = "mail-fwd";
SmtpMail.Send(mailObj);
Response.Write("Mail sent successfully");
}
catch (Exception x)
{
Response.Write("Your message was not sent: " + x.Message);
}
}
</Script>
<body>
<form> id="mail_test" method="post" runat="server">
</form>
</body>
<html>
==========================================================================
==========================================================================
How do I upload a file from my ASP.NET page?
A: In order to perform file upload in your ASP.NET page, you will need to use two classes: the System.Web.UI.HtmlControls.HtmlInputFile class and the System.Web.HttpPostedFile class. The HtmlInputFile class represents and HTML input control that the user will use on the client side to select a file to upload. The HttpPostedFile class represents the uploaded file and is obtained from the PostedFile property of the HtmlInputFile class. In order to use the HtmlInputFile control, you need to add the enctype attribute to your form tag as follows:

Also, remember that the /data directory is the only directory with Write permissions enabled for the anonymous user. Therefore, you will need to make sure that the your code uploads the file to the /data directory or one of its subdirectories.
Below is a simple example of how to upload a file via an ASP.NET page in C# and VB.NET.
C#

<html>
<title>upload_cs</title>
<head>
<script> language="C#" runat="server">
public void UploadFile(object sender, EventArgs e)
{
if (loFile.PostedFile != null)
{
try
{
string strFileName, strFileNamePath, strFileFolder;
strFileFolder = Context.Server.MapPath(@"data\");
strFileName = loFile.PostedFile.FileName;
strFileName = Path.GetFileName(strFileName);
strFileNamePath = strFileFolder + strFileName;
loFile.PostedFile.SaveAs(strFileNamePath);
lblFileName.Text = strFileName;
lblFileLength.Text = loFile.PostedFile.ContentLength.ToString();
lblFileType.Text = loFile.PostedFile.ContentType;
pnStatus.Visible = true;
}
catch (Exception x)
{
Label lblError = new Label();
lblError.ForeColor = Color.Red;
lblError.Text = "Exception occurred: " + x.Message;
lblError.Visible = true;
this.Controls.Add(lblError);
}
}
}
</script>
<body>
<form> id="upload_cs" method="post" runat="server" enctype="multipart/form-data">
<P>
<input> type="file" id="loFile" runat="server">
</P>
<P>
<asp:Button id="btnUpload" runat="server" Text=" Upload " OnClick="UploadFile"></asp:Button></P>
<P>
<asp:Panel id="pnStatus" runat="server" Visible="False">
<asp:Label id="lblFileName" Font-Bold="True" Runat="server"></asp:Label>
uploaded<br>
<asp:Label id="lblFileLength" Runat="server"></asp:Label> bytes<BR>
<asp:Label id="lblFileType" Runat="server"></asp:Label>
</asp:Panel></P>
</form>
</body>
</html>

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Tuesday, November 18, 2008

sending mail in c#.net code

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