public DataSet GetAll_paginacion(string empresaid, tb_cxc_tipventa BE)
 {
     using (SqlConnection cnx = new SqlConnection(conex.empConexion(empresaid)))
     {
         using (SqlCommand cmd = new SqlCommand("", cnx))
         {
             DataSet ds = new DataSet();
             {
                 cmd.CommandType = CommandType.StoredProcedure;
                 cmd.Parameters.Add("@tipventaid", SqlDbType.Char, 2).Value = BE.tipventaid;
                 cmd.Parameters.Add("@tipventaname", SqlDbType.VarChar, 20).Value = BE.tipventaname;
             }
             try
             {
                 cnx.Open();
                 using (SqlDataAdapter da = new SqlDataAdapter(cmd))
                 {
                     da.Fill(ds);
                 }
                 return ds;
             }
             catch (Exception ex)
             {
                 throw new Exception(ex.Message);
             }
         }
     }
 }
 public bool Delete(string empresaid, tb_cxc_tipventa BE)
 {
     using (SqlConnection cnx = new SqlConnection(conex.empConexion(empresaid)))
     {
         using (SqlCommand cmd = new SqlCommand("", cnx))
         {
             {
                 cmd.CommandType = CommandType.StoredProcedure;
                 cmd.Parameters.Add("@tipventaid", SqlDbType.Char, 2).Value = BE.tipventaid;
                 cmd.Parameters.Add("@tipventaname", SqlDbType.VarChar, 20).Value = BE.tipventaname;
             }
             try
             {
                 cnx.Open();
                 if (cmd.ExecuteNonQuery() > 0)
                 {
                     return true;
                 }
                 else
                 {
                     return false;
                 }
             }
             catch (Exception ex)
             {
                 throw new Exception(ex.Message);
             }
         }
     }
 }
 private void CargarComboTipVenta()
 {
     tb_cxc_tipventaBL BL = new tb_cxc_tipventaBL();
     tb_cxc_tipventa BE = new tb_cxc_tipventa();
     DataTable dt = new DataTable();
     dt = BL.GetAll(Session["ssEmpresaID"].ToString(), BE).Tables[0];
     if (dt.Rows.Count > 0)
     {
         cmb_tipventa.DataSource = dt;
         cmb_tipventa.ValueField = "tipventaid";
         cmb_tipventa.TextField = "tpventaname";
         //cmb_tipventa.SelectedIndexChanged += new EventHandler(cmb_tipventa_SelectedIndexChanged);
         cmb_tipventa.DataBind();
     }
 }