private void bind()
    {
        Businesslayer bus = new Businesslayer();

        prop.strDate = txtstrdate.Text;
        prop.endDate = txtenddate.Text;
        int count = bus.bll_salecount(prop);

        if (count > 0)
        {
            lblresult.Visible    = false;
            GridView1.Visible    = true;
            Label2.Visible       = true;
            Label3.Visible       = true;
            lblsale.Visible      = true;
            GridView1.DataSource = GridDataSource();
            GridView1.DataBind();
            // btnsbt.Attributes["onclick"] = "some problem";
        }
        else
        {
            GridView1.Visible = false;
            lblresult.Visible = true;
            Label2.Visible    = false;
            Label3.Visible    = false;
            lblsale.Visible   = false;
            //Button1.Attributes["onclick"] = "AlertHello()";
            //btnsbt.Attributes["onclick"] = "show_alert()";



            lblresult.Text = "Sorry no Records found between these dates";
        }
    }