protected void btnCat_Click(object sender, EventArgs e)
{
string categoryName = txtnewCat.Text;
IAdminBLL objBLL = BLLFactory.AdminBLLFactory.CreateAdminBLLObject();
objBLL.SaveCategory(categoryName);
lblNewCat.Visible = false;
btnCat.Visible = false;
txtnewCat.Visible = false;
List <IItemCategory> itemList = objBLL.GetCategoryList();
ddlCategory.DataSource = itemList;
ddlCategory.DataTextField = "CategoryName";
ddlCategory.DataValueField = "CategoryID";
ddlCategory.DataBind();
}