C#

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Net.Mail;

namespace EmailSMS
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            try
            {
                MailMessage SMS = new MailMessage();
                SmtpClient SMTP_Server = new SmtpClient(SMTP_Server_Name);

                // Use Generic Account information
                SMTP_Server.Credentials = new System.Net.NetworkCredential(userName, password);
                
                // Who its from
                SMS.From = SMS_From;

                // Who its going out to
                SMS.To = SMS_To; // (areacode+prefix+suffix) or 5558675309@txt.att.net

                // Subject of SMS
                SMS.Subject = SMS_Subject;
                
                // Message/Body to SMS
                SMS.Body = SMS_Body;

                
                // SMTP Port
                SMTP_Server.Port = SMTP_Port;
                
                // SSL Enable
                SMTP_Server.EnableSsl = true OR false;


                // SMS Sent
                SMTP_Server.Send();


                // SMS Notification Sent Shown
                MessageBox.Show("SMS St Successfully!");


            }
            catch (Exception ex)
            {
                MessageBox.Show("Error while trying to send SMS.\n\nError: ", ex.ToString());
            };
        }
    }
}

phisco123 wrote:

string path = @"\Files" + "\\" +filename.pdf;

if (File.Exists(path))

// Assumes you're running this from within an ASP.NET Page
string root = Server.MapPath("~/Files");
string path = Path.Combine(root, filename);
if (File.Exists(path))
{
  File.Delete(path);
}

Heath Stewart wrote:

Because you have a backslash at the beginning, which means the search starts
from the root of the drive. For example, if your web root is locally on the C:
drive, then you're code is looking for C:\Files\whatever. I doubt that's
what you want.
 
If your files root is under your web application
root - not generally a good idea since people then have direct access at least
for file extensions not configured with your server software (ex: IIS) - you can
use ~ to resolve the path like so:
 

<SPAN class=code-comment>//</SPAN><SPAN class=code-comment> Assumes you're running this from within an ASP.NET Page
</SPAN>string root = Server.MapPath(<SPAN class=code-string>"</SPAN><SPAN class=code-string>~/Files"</SPAN>);
string path = Path.Combine(root, filename);
<SPAN class=code-keyword>if</SPAN> (File.Exists(path))
{
  File.Delete(path);
}

 
It's also a good idea to use Path.Combine, which works on any
manage host environment (though Windows is most typical) and takes care of any
trailing backslashes since double backslashes in some use cases can cause
problems (referencing back to root, for example).