Mail2

  protected void CheckBox1_CheckedChanged(object sender, EventArgs e)
    {
        SeciliSatirAl();
        BindIkinciGridView();
    }
    protected void BindIkinciGridView()
    {
        //1.GridView da seçili olan satırları
        //2.Gridview da gösteriyoruz.
        DataTable dt = (DataTable)ViewState["kayıtlarial"];
        Gridview3.DataSource = dt;
        Gridview3.DataBind();
    }
    private void SeciliSatirAl()
    {
        DataTable dt;
        if (ViewState["kayıtlarial"] != null)
            dt = (DataTable)ViewState["kayıtlarial"];
        else
            dt = tablolustur();
        for (int i = 0; i < GridView1.Rows.Count; i++)
        {
            CheckBox CheckBox1 = (CheckBox)GridView1.Rows[i].Cells[0].FindControl("CheckBox1");
            if (CheckBox1.Checked)
            {
                //Checkbox seçili ise satırı 2.GridView a ekler
                dt =satirekle(GridView1.Rows[i], dt);
            }
            else
            {
                //Eğer seçili checkbox, seçili olmayan duruma getirilirse
                //2.Gridview a eklenen satır kaldırılır.
                dt =satirkaldir(GridView1.Rows[i], dt);
            }
        }
        ViewState["kayıtlarial"] = dt;
    }
     private DataTable tablolustur()
    {
        DataTable dt = new DataTable();
        dt.Columns.Add("firmad");
        dt.Columns.Add("urunadi");
        dt.Columns.Add("lisansayi");
        dt.Columns.Add("bitistar");
        dt.AcceptChanges();
        return dt;
    }
    private DataTable satirekle(GridViewRow gvRow, DataTable dt)
    {
        DataRow[] dr = dt.Select("firmad = '" + gvRow.Cells[1].Text + "'");
        if (dr.Length <= 0)
        {
            dt.Rows.Add();
            int rowscount = dt.Rows.Count - 1;
            dt.Rows[rowscount]["firmad"] =gvRow.Cells[1].Text;
            dt.Rows[rowscount]["urunadi"] = gvRow.Cells[2].Text;
            dt.Rows[rowscount]["lisansayi"] = gvRow.Cells[4].Text;
            dt.Rows[rowscount]["bitistar"] =gvRow.Cells[5].Text;
            dt.AcceptChanges();
        }
        return dt;
    }
    private DataTable satirkaldir(GridViewRow gvRow, DataTable dt)
    {
        DataRow[] dr = dt.Select("firmad = '" + gvRow.Cells[1].Text + "'");
        if (dr.Length > 0)
        {
            dt.Rows.Remove(dr[0]);
            dt.AcceptChanges();
        }
        return dt;
    }
    private string GridViewToHtml(GridView gv)
    {
        StringBuilder SB = new StringBuilder();
        StringWriter SW = new StringWriter(SB);
        HtmlTextWriter htmlTW = new HtmlTextWriter(SW);
        gv.RenderControl(htmlTW);
        return SB.ToString();
    }
    protected void Button3_Click1(object sender, EventArgs e)
    {
        Gridview3.Visible = true;

            MailMessage Mesaj = new MailMessage();
            Mesaj.From = new MailAddress(" ");
            Mesaj.To.Add(" ");
            Mesaj.Subject = "Müşteri Memnuniyeti";
            Mesaj.IsBodyHtml = true;

            Mesaj.Body = GridViewToHtml(Gridview3);
            SmtpClient smtp = new SmtpClient(" ", );
            System.Net.NetworkCredential SMTPUserInfo = new System.Net.NetworkCredential(" ", " ");
            smtp.UseDefaultCredentials = true;
            smtp.Credentials = SMTPUserInfo;
            smtp.Send(Mesaj);

    }