protected void grdData_RowCommand(object sender, GridViewCommandEventArgs e)
        {
            int id = Convert.ToInt32(e.CommandArgument.ToString());

            if (e.CommandName == "download")
            {
                DataSet ds   = obj.GetConceptNotesbyConceptId(id);
                DataRow dr   = ds.Tables[0].Rows[0];
                Byte[]  data = (Byte[])dr["ContentFile"];
                Response.Clear();
                MemoryStream ms = new MemoryStream(data);
                Response.ContentType = "application/pdf";
                Response.AddHeader("content-disposition", "attachment;filename=ConceptNote." + dr["Extension"]);
                Response.Buffer = true;
                ms.WriteTo(Response.OutputStream);
                Response.End();
            }
            if (e.CommandName == "editrec")
            {
                DataSet ds = obj.GetConceptNotesbyConceptId(id);
                txtNameOfIdea.Text = ds.Tables[0].Rows[0]["ContentText"].ToString();
                btnSave.Text       = "Update";
                btnSave.Enabled    = true;
                hidConceptId.Value = id.ToString();
            }
            if (e.CommandName == "deleterec")
            {
                bool flag = obj.DeleteConceptNote(id);
                if (flag)
                {
                    lblMessage.Text = "Concept note deleted success";
                }
                else
                {
                    lblMessage.Text = "Concept note not deleted.";
                }
                BindData();
            }
        }