CODE

Send E-Mail in Asp.Net application using Gmail Mail Server I will let you guys to create the above UI.
After you are done with this goto the click event of the Send button and paste the below code.


protected void btnSendMail_Click(object sender, EventArgs e)
{
try
{
/* Create a new blank MailMessage with the from and to adreesses*/
MailMessage mailMessage = new MailMessage(txtSender.Text,txtReceiver.Text);
/*Checking the condition that the cc is empty or not if not then * include them */
if (txtCc.Text != null && txtCc.Text != string.Empty)
{
mailMessage.CC.Add(txtCc.Text);
}
/*Checking the condition that the Bcc is empty or not if not then * include them*/
if (txtBcc.Text != null && txtBcc.Text != string.Empty)
{
mailMessage.Bcc.Add(txtBcc.Text);
}
//Ading Subject to the Mail
mailMessage.Subject = txtSubject.Text;
//Adding the Mail Body
mailMessage.Body = txtBody.Text;
/* Set the properties of the MailMessage to the values on the form as per the mail is HTML formatted or plain text */
if (rblMailFormat.SelectedItem.Text =="Text")
mailMessage.IsBodyHtml = false;
else
mailMessage.IsBodyHtml = true;
/* We use the following variables to keep track ofattachments and after we can delete them */
string attach1 = null;
string attach2 = null;
string attach3 = null;
/*strFileName has a attachment file name for attachment process. */
string strFileName = null;
/* Bigining of Attachment1 process & Check the first open file dialog for a attachment */
if (inpAttachment1.PostedFile != null)
{
/* Get a reference to PostedFile object */
HttpPostedFile attFile = inpAttachment1.PostedFile;
/* Get size of the file */
int attachFileLength = attFile.ContentLength;
/* Make sure the size of the file is > 0 */
if (attachFileLength > 0)
{
/* Get the file name */
strFileName = Path.GetFileName(inpAttachment1.PostedFile.FileName);
/* Save the file on the server */
inpAttachment1.PostedFile.SaveAs(Server.MapPath(strFileName));
/* Create the email attachment with the uploaded file*/
Attachment attach = new
Attachment(Server.MapPath(strFileName));
/* Attach the newly created email attachment */
mailMessage.Attachments.Add(attach);
/* Store the attach filename so we can delete it later*/
attach1 = strFileName;
}
}
/* Attachment-2 Repeat previous step defiend above*/
if (inpAttachment2.PostedFile != null)
{
same for attachment 2
}
/* Attachment-3 Repeat previous steps step defiend above*/
if (inpAttachment3.PostedFile != null)
{
same for attachment 3
}
/* Set the SMTP server and send the email with attachment */
SmtpClient smtpClient = new SmtpClient();
// smtpClient.Host = emailServerInfo.MailServerIP;
//this will be the host in case of gamil and it varies from the service provider
smtpClient.Host = "smtp.gmail.com";
//smtpClient.Port = Convert.ToInt32 emailServerInfo.MailServerPortNumber);
//this will be the port in case of gamil for dotnet andit varies from the service provider
smtpClient.Port = 587;
smtpClient.UseDefaultCredentials = true;
//smtpClient.Credentials = new System.Net.NetworkCredential(emailServerInfo.MailServerUserName,emailServerInfo.MailServerPassword);
smtpClient.Credentials = new System.Net.NetworkCredential(txtUserName.Text, txtPassword.Text);
//this will be the true in case of gamil and it varies from the service provider
smtpClient.EnableSsl = true;
smtpClient.Send(mailMessage);
/* Delete the attachements if any */
try{
if (attach1 != null)
File.Delete(Server.MapPath(attach1));
if (attach2 != null)
File.Delete(Server.MapPath(attach2));
if (attach3 != null)
File.Delete(Server.MapPath(attach3));
}
catch{}
/* clear the controls */
txtSender.Text = string.Empty;
txtReceiver.Text = string.Empty;
txtCc.Text = string.Empty;
txtBcc.Text = string.Empty;
txtSubject.Text = string.Empty;
txtBody.Text = string.Empty;
txtUserName.Text = string.Empty;
/* Dispaly a confirmation message to the user. */
lblMessage.Visible = true;
lblMessage.ForeColor = Color.Black;
lblMessage.Text = "Message sent.";
}
catch (Exception ex)
{
/* Print a message informing the user about the exception that was risen */
lblMessage.Visible = true;
lblMessage.ForeColor = Color.Red;
lblMessage.Text = ex.ToString();
}
}
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Write a code for Fibonacci Series

using System;
using System.Collections.Generic;
using System.Text;

namespace Fibbonaci
{
class Program
{
static void Main(string[] args)
{
int oldnum, newnum, fibnum, maxnum;
Console.Write("Enter Any Value");
maxnum = int.Parse(Console.ReadLine());
oldnum = 0;
newnum = 1;
fibnum = oldnum + newnum;
Console.WriteLine(oldnum);
Console.WriteLine(newnum);
Console.WriteLine(fibnum);
for (; ; )
{
oldnum = newnum;
newnum = fibnum;
fibnum = oldnum + newnum;
if (fibnum > maxnum)
{
Console.WriteLine("");
break;
}
Console.WriteLine(fibnum);
}
Console.ReadLine();

}
}
}
==============================
FIND THE O/P OF THIS

int i = 1;
int j = 1;
Console.WriteLine(i==j); TRUE
Console.WriteLine(i.ToString() == j.ToString()); TRUE
Console.WriteLine((object)i == (object)j); FALSE

==============================
Calculating an Age in C# From a Date of Birth
public static int CalculateAge(DateTime birthdate)
{
// get the difference in years
int years = DateTime.Now.Year - birthdate.Year;
// subtract another year if we're before the
// birth day in the current year
if (DateTime.Now.Month < birthdate.Month (DateTime.Now.Month == birthdate.Month && DateTime.Now.Day < birthdate.Day))
years--;
return years;
}
=====================================
WAP to Upload file in Asp.Net
protected void cmdUploadFile_Click(object sender, EventArgs e)
{
strfileDirectory=”C:\Saini”;
//determine file to be uploaded
string strFileName = System.IO.Path.GetFileName(FileToUpload.PostedFile.FileName);
if((FileToUpload.PostedFile != null) && (FileToUpload.PostedFile.ContentLength>0))
{
try
{
//save the file to server
FileToUpload.PostedFile.SaveAs(strfileDirectory+strFileName);
uploadLblMeg.Visible=true;
uploadLblMeg.Text="File"+strfileDirectory+strFileName+"Uploaded Successfully";


}
catch(Exception ex)
{
uploadLblMeg.Visible=true;
uploadLblMeg.Text= ex.Message;
}
}
else
{
uploadLblMeg.Text="Select a file to Upload. Please try again !";
}


Syntax of Operator Overloading with Example?
Public struct HoursWorked
{
Float regularHours;
Float OvertimeHours;
}
//CREATING OVERLOADING OPERATOR
Public static HoursWorked operator +(HoursWorked a, HoursWorked b)
{
HoursWorked Result = new HoursWorked();
Result.RegularHours= a.RegularHours + b.RegularHours;
Result.OvertimeHours=a.OvertiemHours+b.OvertimeHours;
Return Result;
}