Email using C#

I had a co-worker recently ask me what I did to send email from a C# web application. I gave him what worked for me. He made a few adjustments and sent it back to me.  I did request that he send me what he came up with that finally worked for him. I think he did a better job than I so I am going to post it for you to see. Have a look and see how it may fit into your application or project. Improvements are welcome. He ended up writing a class to call from anywhere in the project. It takes the following arguments; from, to, subject, body, attachments, and isBodyHTML boolean.

using System.Net;
using System.Net.Mail;

public class mailer
{
public Boolean sendemail(String strFrom, string strTo, string strSubject, string strBody, string strAttachmentPath, bool IsBodyHTML)
{
Array arrToArray;
char[] splitter = { ';' };
arrToArray = strTo.Split(splitter);
MailMessage mm = new MailMessage();
mm.From = new MailAddress(strFrom);
mm.Subject = strSubject;
mm.Body = strBody+disclaimer;
mm.IsBodyHtml = IsBodyHTML;
//mm.ReplyTo = new MailAddress("replyto@xyz.com");
foreach (string s in arrToArray)
{
mm.To.Add(new MailAddress(s));
}
if (strAttachmentPath != "")
{
try
{
//Add Attachment
Attachment attachFile = new Attachment(strAttachmentPath);
mm.Attachments.Add(attachFile);
}
catch { }
}
SmtpClient smtp = new SmtpClient();
try
{
smtp.Host = "mail.domain.com";
smtp.Port = 25; //Specify your port No;
smtp.Send(mm);
return true;
}
catch
{
mm.Dispose();
smtp = null;
return false;
}
}
}

Thanks Shane!

Hope this helped someone.  Have fun coding and as always, if there are any questions or suggestions, they are welcome.  Thank you.

Working With Dates and Times Using ASP.NET C#

I know we have all have to use dates at some time or another.  I came across this posting and thought I would list it here for you.  Hope it helps.

DateTime today = DateTime.Today; // just the date

DateTime tomorrow = today.AddDays(1);

DateTime yesterday = today.AddDays(-1);

TimeSpan time = tomorrow – today;

int days = time.Days;

int hours = time.Hours;

int minutes = time.Minutes;

int seconds = time.Seconds;

int milliseconds = time.Milliseconds;

time += new TimeSpan(days, hours, minutes, seconds,

milliseconds);

As always, if there are any questions or suggestions, they are welcome. Thank you.

Performing Loops – VB and C#

This will be a short post. I just wanted to display the differences between C# and VB when performing loops.  See below:

VB:

For i As Integer = 10 To 1 Step -1

Console.WriteLine(i)

If i < 5 Then

Exit For

End If

Next

 

Dim start As Integer = 5

For i As Integer = start To start + 10

Console.WriteLine(i)

Next

 

Dim str As String

Do

str = Console.ReadLine()

Console.WriteLine(str)

Loop Until str = “”

 

Do

str = Console.ReadLine().Trim()

If String.IsNullOrEmpty(str) Then

Exit Do

End If

Console.WriteLine(“You typed:{0}”, str)

Loop

Dim names As String() = New String() {“Bob”, “David”}

For Each name As String In names

Console.WriteLine(name)

Next

 

C#: 

for (int i=0; i<10; i++) {}

 

while (i<10) { i++; }

 

do { i++; } while (i<10);

 

foreach (ListItem item in list.Items) {}

 

Working With a Database in C#

I do not use C# much. Here is some code I found while browsing the Internet that helps to connect to a database:

using System.Data;
using System.Data.SqlClient;
string cs = @"Data Source=.\SQLEXPRESS;" +
string cs = @"Initial Catalog=NamesDB;" +
string cs = @"Integrated Security=True;";
using (SqlConnection con = new SqlConnection(cs)) {
con.Open();
string sql = "INSERT INTO Names(Name) VALUES(@Name)";
// insert a record
SqlCommand cmd1 = new SqlCommand(sql, con);
cmd1.Parameters.Add("@Name", SqlDbType.NVarChar, 100);
cmd1.Parameters["@Name"].Value = "Bob";
cmd1.ExecuteNonQuery();
// insert a second record
cmd1.Parameters["@Name"].Value = "David";
cmd1.ExecuteNonQuery();
// read records
sql = "SELECT * FROM Names";
SqlCommand cmd2 = new SqlCommand(sql, con);
using (SqlDataReader r = cmd2.ExecuteReader()) {
int iName = r.GetOrdinal("Name");
while (r.Read()) {
Console.WriteLine(
r.IsDBNull(iName)?"Null":r.GetString(iName)
);
}
}
// read a single value
sql = "SELECT TOP 1 Name FROM Names";
SqlCommand cmd3 = new SqlCommand(sql, con);
Console.WriteLine(cmd3.ExecuteScalar());
}

Good luck and Happy Coding!

Working With Number in C#

int i = 0;

// convert from a string

int i = int.Parse(“1″);

// convert froma string and don’t throw exceptions

if (int.TryParse(“1″, out i)) {}

i++; // increment by one

i–; // decrement by one

i += 10; // add 10

i -= 10; // subtract 10

i *= 10; // multiply by 10

i /= 10; // divide by 10

i = checked(i*2) // check for over flow

i = unchecked(i*2) // ignore over flow