private void btnSave_Click(object sender, EventArgs e)
        {
            try
            {
                if (screen.Equals(1))
                {
                    foreach (GridViewRowInfo rowinfo in dgvData.Rows.Where(o => Convert.ToBoolean(o.Cells["S"].Value)))
                    {
                        RetDT.Add(rowinfo);
                    }
                    this.Close();
                }
                else
                {
                    //if (dgvData.Rows.Count > 0)
                    //{

                    //    Shipping_FG_Sell a = new Shipping_FG_Sell(Convert.ToString(dgvData.CurrentRow.Cells["SHNo"].Value)
                    //        //Convert.ToString(dgvData.CurrentRow.Cells["CodeNo"].Value)
                    //        );
                    //    a.ShowDialog();
                    //   // this.Close();
                    //}
                    //else
                    {
                        Shipping_FG_Sell a = new Shipping_FG_Sell();
                        a.ShowDialog();
                    }
                }
            }
            catch (Exception ex) { MessageBox.Show(ex.Message); }
        }
 private void btnSave_Click(object sender, EventArgs e)
 {
     try
     {
         if (screen.Equals(1))
         {
             if (dgvData.Rows.Count > 0)
             {
                 DocNo_tt.Text = Convert.ToString(dgvData.CurrentRow.Cells["DocNo"].Value);
                 this.Close();
             }
         }
         else
         {
             Shipping_FG_Sell a = new Shipping_FG_Sell();
             a.ShowDialog();
         }
     }
     catch (Exception ex) { MessageBox.Show(ex.Message); }
 }