I have added ajax tab container in my web page. that has two tab pages. when i click my first  tab page button  i want to save the value of the first tab control values and automatically  the second tab need to be open. i tried the following code but it did not open. 
bool result = bil.InsertBuyer(buyer);
          if (result)
          {
            //  BuyerEntry.TabContainer1.ActiveTabIndex = 1;
             // Response.Redirect("~/BuyerList.aspx?value" + 1);
             // BuyerEntry.TabContainer1.Tabs[0].Visible = false;
              BuyerEntry.TabContainer1.ActiveTab = BuyerEntry.TabContainer1.Tabs[1];
              BuyerEntry.TabContainer1.ActiveTabIndex++;
              BuyerEntry.txtbid.ReadOnly = true;
              BuyerEntry.txtname1.ReadOnly = true;
              BuyerEntry.txtbid.Text = buyer.BUYERID;
              BuyerEntry.txtname1.Text = buyer.BUYERNAME;
          }
in the above code I insert the value using InsertBuyer method. then if inserted I want to open the next tab.