I have a C# web form, after it is submitted, it populates a RTF document and e-mails it out to a manager. I have that part working, but I also need to add the ability to upload and e-mail an additional document within the same e-mail that is uploaded by the user.

Currently on Submit:

Code:
public partial class IT_ITProForm : System.Web.UI.Page
{
    private string EmailDest = ConfigurationManager.AppSettings["ITDestinationEmail"];
    private string EmailFrom = ConfigurationManager.AppSettings["EmailSender"];
    private string VirtualRoot = ConfigurationManager.AppSettings["FormsRoot"];

    private const string FormFile = "Template.rtf";
    private const string TempRoot = "upload";
    private const string EmailSubject = "IT Project Request Form";
    private const string EmailBody = "<See attached IT Project Request Form>";
    private const string EmailSubjectReceipt = "(Receipt) IT Project Request Form";
    private const string EmailBodyReceipt = "<The attached IT Project Request Form is your receipt of submission.>";

   protected void btnSubmit_Click(object sender, EventArgs e)
    {
        //Set the name of the Temp File
        string TempFile = "Request_" + txtRequestedby.Text + "_" + DateTime.Now.Ticks.ToString() + ".doc";

        //Initialize the Injector Class
        Injector newInjector = new Injector(VirtualRoot, FormFile, TempRoot, TempFile);

        //Open the Injector
        newInjector.OpenRead();
        newInjector.Replace("xtokenFTEs", txtFTEs.Text);


        //Displose of the Injector
        newInjector.CloseWrite();

       if (txtEmail.Text != String.Empty)
            {
                newInjector.SendFileAttachment(
                    txtEmail.Text,
                    EmailFrom,
                    EmailSubjectReceipt,
                    EmailBodyReceipt);
            }

}

}
So if I add a field called fileAttached, what would I need to do to get it to e-mail along with filled out RTF in the same e-mail?
Thank you.