How do I filter a listview with multi parameters in c# using querystring

ProductList.aspx <asp:DataList ID="dl_category" runat="server"> <ItemTemplate> <li> <a href = "ProductList.aspx?ProdCategory=<%#Eval("Category_Name")%>"><%# Eval("Category_Name")%></a> </li> </ItemTemplate> </asp:DataList> <asp:DataList ID="dl_vendor" runat="server"> <ItemTemplate> <li> <a href = "ProductList.aspx?Vendor=<%# Eval("Vendor_Name")%>"><%# Eval("Vendor_Name")%></a> </li> </ItemTemplate> </asp:DataList> Currently I have 2 datalist. One datalist filters the listview by product category while the other datalist filters the listview by vendor name. ProductList.aspx.cs protected void Page_Load(object … Read more