如何在c上发送电子邮件一个按钮点击保存文件后相同的按钮功能

Question

在我的应用程序中，我有一个按钮，用于下载excel文件。。

OnButtonClick代码：

protected void btnmacdesc_Click(object sender, EventArgs e)
{
    if (fileName_macdesc.Length > 0)
    {
        fileName_macdesc.Remove(0, fileName_macdesc.Length);
    }        
    fileName_macdesc = "daily_macdesc_" + DateTime.Now.ToString("ddMMMyyyyhhmm") + ".xls"; 
    try
    {
        DataSet ds_macdesc = (DataSet)Session["sessionmachinedesc_ds"];
        gv.DataSource = ds_macdesc.Tables[0];
        gv.DataBind();                     
        HttpContext.Current.Response.Clear();
        HttpContext.Current.Response.AddHeader("content-disposition", string.Format("attachment; filename={0}", fileName_macdesc));
        HttpContext.Current.Response.ContentType = "application/ms-excel";
        using (StringWriter sw = new StringWriter())
        {
            using (HtmlTextWriter htw = new HtmlTextWriter(sw))
            {
                Table table = new Table();
                gv.GridLines = GridLines.Both;
                table.GridLines = gv.GridLines;
                if (gv.HeaderRow != null)
                {
                    PrepareGridViewForExport(gv.HeaderRow);
                    table.Rows.Add(gv.HeaderRow);
                    for (int k = 0; k < ds_macdesc.Tables[0].Columns.Count; k++)
                    {
                        table.Rows[0].Cells[k].BackColor = gv.HeaderStyle.BackColor;
                        table.Rows[0].Cells[k].ForeColor = gv.HeaderStyle.ForeColor;
                        table.Rows[0].Cells[k].Font.Bold = true;
                    }
                }
                foreach (GridViewRow row in gv.Rows)
                {
                    PrepareGridViewForExport(row);
                    table.Rows.Add(row);
                }
                if (gv.FooterRow != null)
                {
                    PrepareGridViewForExport(gv.FooterRow);
                    table.Rows.Add(gv.FooterRow);
                }
                bool altColor = false;
                for (int i = 1; i < table.Rows.Count; i++)
                {
                    if (!altColor)
                    {
                        for (int kl = 0; kl < ds_macdesc.Tables[0].Columns.Count; kl++)
                        {
                            table.Rows[i].Cells[kl].BackColor = gv.RowStyle.BackColor;
                        }
                        altColor = true;
                    }
                    else
                    {
                        for (int lk = 0; lk < ds_macdesc.Tables[0].Columns.Count; lk++)
                        {
                            table.Rows[i].Cells[lk].BackColor = gv.AlternatingRowStyle.BackColor;
                        }
                        altColor = false;
                    }
                }
                table.RenderControl(htw);
                HttpContext.Current.Response.Write(sw.ToString());                      
                //HttpContext.Current.Response.End();
                HttpContext.Current.ApplicationInstance.CompleteRequest();
              //  send_mail_daily(fileName_macdesc); 
            }
        }
    }
    catch (Exception ex)
    {
        CreateLogFiles Err = new CreateLogFiles();
        Err.ErrorLog(Server.MapPath("../Logs/ErrorLog"), ex.Message, "Admin_admin_dailyreport==>btnmacdesc_Click");
    }
}

我可以下载excel文件，没有任何问题。现在他们要求我在点击同一个按钮时，将下载的文件作为附件发送到电子邮件中。有可能这样做吗？

所以我试着在按钮事件的最后一行调用一个函数（send_mail_daily），但我无法附加它。"另存为"对话框选项在最后一行执行后显示。请指导我解决这个问题，或者有其他替代解决方案吗。

功能代码：

public void send_mail_daily(string filename)
{
    MailMessage mail = new MailMessage();
    mail.To = "[e-mail]";
    mail.From = "[e-mail]";
    mail.Subject = "this is a test email.";
    mail.Body = "this is my test email body.";
    MailAttachment attachment = new MailAttachment(Server.MapPath(filename.ToString())); //create the attachment
    mail.Attachments.Add(attachment);   //add the attachment
    SmtpMail.SmtpServer = "abc.in.def.LOCAL";  //your real server goes here
    SmtpMail.Send(mail);
}

Answer 1

在完成请求之前，请尝试send_mail_daily。

没有理由不能做到这一点，只要你把代码放在正确的位置。