Home/ Questions/Q 7073677
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-05-28T05:57:29+00:00

When I get the querystring with Request.Url.Query I’d like to exclude a parameter (without

  • 0

When I get the querystring with Request.Url.Query I’d like to exclude a parameter (without using replace, or function like these).

So, for example, if I have this querystring :

?ID=1241&IDL=241&HC=1241

I’d like to exclude IDL getting :

?ID=1241&HC=1241

Is this a implemented way or I need to make my own function?

EDIT : I care about the order of my query string values.

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    It’s still string manipulation, but how about something like:

    String.Concat("?",
    String.Join("&",
        Request.Url.Query.Substring(1)
            .Split('&')
            .Where(k => !k.StartsWith("IDL="))
            .ToArray() // For .NET versions prior to v4.0
     )
)

    Alternatively you could use Request.QueryString to get at a processed collection of query-string parameters.

    EDIT: This will leave your parameters in the order they were sent.

    Here’s a sample ASPX page that outputs a modified query-string (I’ve tested it in a ASP.NET 3.5 Web-Site):

    <%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>
<%@ Import Namespace="System.Linq" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title>Query String Removal</title>
</head>
<body>
    Modified query-string: <%=
        String.Concat("?",
            String.Join("&",
                Request.Url.Query.Substring(1)
                    .Split('&')
                    .Where(k => !k.StartsWith("IDL="))
                    .ToArray() // For .NET versions prior to v4.0
             )
        )
    %>
</body>
</html>

    NOTE: System.Linq has been imported. An exception will be raised if you don’t specify a query-string.

    • 0