protected void Page_Load(object sender, EventArgs e)
 {
     if (!IsPostBack)
     {
         patientId = Convert.ToInt32(Session["patientId"].ToString());
         Doctor_GetIPDObservationHistoryBL objDoctor_GetIPDObservationHistoryBL = new Doctor_GetIPDObservationHistoryBL();
         ds = objDoctor_GetIPDObservationHistoryBL.Doctor_GetIPDObservationHistory(patientId, Convert.ToInt32(Session["doctorId"].ToString()));
         GridView1.DataSource = ds;
         GridView1.DataBind();
     }
 }
 protected void Page_Load(object sender, EventArgs e)
 {
     if(!IsPostBack)
     {
         patientId = Convert.ToInt32(Session["patientId"].ToString());
         Doctor_GetIPDObservationHistoryBL objDoctor_GetIPDObservationHistoryBL = new Doctor_GetIPDObservationHistoryBL();
         ds = objDoctor_GetIPDObservationHistoryBL.Doctor_GetIPDObservationHistory(patientId, Convert.ToInt32(Session["doctorId"].ToString()));
         GridView1.DataSource = ds;
         GridView1.DataBind();
     }
 }