protected void btnwithdraw_Click(object sender, EventArgs e)
 {
     try
     {
         String username = (string)Session["username"];
         String bankid   = dropdownbank.SelectedItem.Value.ToString();
         String wamount  = txtamount.Text.ToString();
         int    amount   = Convert.ToInt32(wamount);
         ProjectDatasetTableAdapters.withdrawalsTableAdapter wds = new ProjectDatasetTableAdapters.withdrawalsTableAdapter();
         ProjectDatasetTableAdapters.usersTableAdapter       uds = new ProjectDatasetTableAdapters.usersTableAdapter();
         ProjectDataset.usersDataTable udt = new ProjectDataset.usersDataTable();
         udt = uds.GetDataByusername(username);
         String userid    = udt.Rows[0]["user_id"].ToString();
         int    balance   = Convert.ToInt32(udt.Rows[0]["balance"].ToString());
         String bankcount = uds.verifybankforwithdrawal(username, Convert.ToInt32(bankid)).ToString();
         if (Convert.ToInt32(bankcount) > 0)
         {
             if (amount < 500)
             {
                 lblmsg.Visible           = true;
                 lblmsg.Text              = "Minimum amount to withdraw is 500 PKR";
                 mtop.Style["margin-top"] = "40px";
             }
             else if (balance < amount)
             {
                 lblmsg.Visible           = true;
                 lblmsg.Text              = "You Don't have Enought Balance";
                 mtop.Style["margin-top"] = "40px";
             }
             else
             {
                 lblmsg.Visible             = true;
                 lblmsg.Text                = "Withdrawal Successfully Initiated.";
                 lblmsg.Style["background"] = "#4CAF50!important";
                 mtop.Style["margin-top"]   = "40px";
                 wds.insertwithdrawal(Convert.ToInt32(userid), Convert.ToInt32(bankid), Convert.ToInt32(wamount));
                 uds.updatesenderbalance(Convert.ToInt32(wamount), username);
             }
         }
         else
         {
             lblmsg.Visible           = true;
             lblmsg.Text              = "This bank account is not yours.";
             mtop.Style["margin-top"] = "40px";
         }
     } catch (Exception ex)
     {
         lblmsg.Visible           = true;
         lblmsg.Text              = ex.ToString();
         mtop.Style["margin-top"] = "40px";
     }
 }
        protected void btnsend_Click(object sender, EventArgs e)
        {
            try
            {
                string username = (string)(Session["username"]);
                String receiver = Regex.Replace(txtreceiver.Text, @"[^\w]", "");
                String amount   = Regex.Replace(txtamount.Text, @"[^\w]", "");
                if (receiver == "")
                {
                    lblmsg.Visible           = true;
                    lblmsg.Text              = "Receiver Username Must not be empty.";
                    mtop.Style["margin-top"] = "40px";
                }
                else if (amount == "")
                {
                    lblmsg.Visible           = true;
                    lblmsg.Text              = "Amount Must not be empty";
                    mtop.Style["margin-top"] = "40px";
                }
                else
                {
                    if (Convert.ToInt32(amount) < 100)
                    {
                        lblmsg.Visible           = true;
                        lblmsg.Text              = "Minimum amount you can send is, RS100";
                        mtop.Style["margin-top"] = "40px";
                    }
                    else
                    {
                        ProjectDatasetTableAdapters.usersTableAdapter ta = new ProjectDatasetTableAdapters.usersTableAdapter();
                        String rcount = ta.checkbyusername(receiver).ToString();
                        if (Convert.ToInt32(rcount) == 0)
                        {
                            lblmsg.Visible           = true;
                            lblmsg.Text              = "User is not registered";
                            mtop.Style["margin-top"] = "40px";
                        }
                        else
                        {
                            ProjectDataset.usersDataTable td = new ProjectDataset.usersDataTable();
                            td = ta.GetDataByusername(username);
                            String sid = td.Rows[0]["user_id"].ToString();

                            String sbalance = td.Rows[0]["balance"].ToString();
                            if (Convert.ToInt32(sbalance) < Convert.ToInt32(amount))
                            {
                                lblmsg.Visible           = true;
                                lblmsg.Text              = "You Do not Have Enough Balance";
                                mtop.Style["margin-top"] = "40px";
                            }
                            else
                            {
                                ta.updatesenderbalance(Convert.ToInt32(amount), username);
                                ta.updatereceiverbalance(Convert.ToInt32(amount), receiver);
                                td = ta.GetDataByusername(receiver);
                                string rid = td.Rows[0]["user_id"].ToString();
                                lblmsg.Visible             = true;
                                lblmsg.Text                = "Amount successfully Transferred!";
                                lblmsg.Style["background"] = "#4CAF50!important";
                                mtop.Style["margin-top"]   = "40px";
                                ProjectDatasetTableAdapters.transfersTableAdapter tta = new ProjectDatasetTableAdapters.transfersTableAdapter();
                                tta.Insert(Convert.ToInt32(sid), Convert.ToInt32(rid), Convert.ToInt32(amount), DateTime.Now);
                            }
                        }
                    }
                }
            } catch (Exception ex)
            {
                lblmsg.Visible           = true;
                lblmsg.Text              = ex.ToString();
                mtop.Style["margin-top"] = "40px";
            }
        }