protected void btnFilter_Click(object sender, EventArgs e)
{
int minPrice = int.Parse(Request.Form["pricemin"]);
int maxPrice = int.Parse(Request.Form["pricemax"]);
var averagePriceList = _productDal.GetAveragePriceList(minPrice, maxPrice);
productslv.DataSource = averagePriceList;
productslv.DataBind();
lvGridProduct.DataSource = averagePriceList;
lvGridProduct.DataBind();
}
