protected void btnView_OnClick(object sender, EventArgs e)
 {
     if (ddlsearch.SelectedValue == "IMID")
     {
         lblGridTitle.Text = "IMID: " + txtName.Text.ToString() + " Session:" + lblHiddenSeason.Text.ToString();
         query             = "select SNo,CourierType,Name,SendTo,City,State,CourierService,Weight,Amount,Date,CourierSerialno from CourierRD where Session='" + lblHiddenSeason.Text.ToString() + "' and Name='" + txtName.Text.ToString() + "'";
         fillGrid(query);
     }
     else if (ddlsearch.SelectedValue == "CourierService")
     {
         lblGridTitle.Text = ddlCourier.SelectedValue.ToString() + " Session:" + lblHiddenSeason.Text.ToString();
         query             = "select SNo,CourierType,Name,SendTo,City,State,CourierService,Weight,Amount,Date,CourierSerialno from CourierRD where Session='" + lblHiddenSeason.Text.ToString() + "' and CourierService='" + ddlCourier.SelectedValue.ToString() + "'";
         fillGrid(query);
     }
     else if (ddlsearch.SelectedValue == "RefrenceNo")
     {
         lblGridTitle.Text = "Reference No: " + txtNo.Text.ToString();
         query             = "select SNo,CourierType,Name,SendTo,City,State,CourierService,Weight,Amount,Date,Consignmentno from CourierRD where CourierSerialno='" + txtNo.Text.ToString() + "'";
         fillGrid(query);
     }
     else if (ddlsearch.SelectedValue == "ConsignmentNo")
     {
         lblGridTitle.Text = "Consignment No. " + txtNo.Text.ToString();
         query             = "select SNo,CourierType,Name,SendTo,City,State,CourierService,Weight,Amount,Date,CourierSerialno from CourierRD where ConsignmentNo='" + txtNo.Text.ToString() + "'";
         fillGrid(query);
     }
     GridCourier.Focus();
 }
    private void fillGrid(string qry)
    {
        SqlDataAdapter ad = new SqlDataAdapter(qry, con);
        DataSet        ds = new DataSet();

        ad.Fill(ds);
        GridCourier.DataSource = ds;
        GridCourier.DataBind();
    }
 protected void GridView1_PageIndexChanging(object sender, GridViewPageEventArgs e)
 {
     GridCourier.PageIndex = e.NewPageIndex;
     GridCourier.DataBind();
 }