public void LoadDiseaseGridView()
        {
            GetDiseasesList = aHeadOfficeManager.GetDiseasesList();



            if (dt.Columns.Count == 0)
            {
                dt.Columns.Add("Serial No", typeof(string));
                dt.Columns.Add("Name", typeof(string));
                dt.Columns.Add("Description", typeof(string));
                dt.Columns.Add("Treatment", typeof(string));
            }

            int count = 1;

            foreach (var disease in GetDiseasesList)
            {
                DataRow NewRow = dt.NewRow();
                NewRow[0] = count.ToString();

                NewRow[1] = disease.Name;
                NewRow[2] = disease.Description;
                NewRow[3] = disease.Treatment;
                dt.Rows.Add(NewRow);
                count++;
            }
            DiseaseGridView.DataSource = dt;
            DiseaseGridView.DataBind();
        }
 protected void DiseaseGridView_PageIndexChanging(object sender, GridViewPageEventArgs e)
 {
     DiseaseGridView.PageIndex  = e.NewPageIndex;
     DiseaseGridView.DataSource = dt;
     DiseaseGridView.DataBind();
 }