//load grid
private void Load_Grid()
{
int iPageIndex = UntilityFunction.IntegerForNull(HD_Page.Value);
int iPageSize = UntilityFunction.IntegerForNull(Config.PageSizeAdmin);//get page size
int iTotalRow;
var oList = ServiceFactory.GetInstanceProduct().SelectListProducts(iPageIndex, iPageSize, out iTotalRow);
sProducHTML = BuildContentListProduct(oList, UserRightImpl.CheckRightAdminnistrator().UserEdit);
//Page
sPage = HtmlUtility.BuildPagerScript(iTotalRow, iPageSize, iPageIndex, "Page", "chon", 5, "product");
}