Params Property

HttpRequest.Params Property

Gets a combined collection of QueryString, Form, ServerVariables, and Cookies items.

Namespace: System.Web
Assembly: System.Web (in system.web.dll)

public NameValueCollection Params { get; }
/** @property */
public NameValueCollection get_Params ()

public function get Params () : NameValueCollection

Property Value

A NameValueCollection object.

The following code example iterates through the Params property for a page and displays each key and corresponding value on the page.

<%@ Page Language="C#"%>
<script runat="server">

    private void Page_Load(object sender, EventArgs e)
        // Create a string to contain the paramaters'
        // information.
        string paramInfo = "";

        // Obtain a reference to the Request.Params
        // collection.
        NameValueCollection pColl = Request.Params;

        // Iterate through the collection and add
        // each key to the string variable.
        for(int i = 0; i <= pColl.Count - 1; i++)
            paramInfo += "Key: " + pColl.GetKey(i) + "<br>";

            // Create a string array that contains
            // the values associated with each key.
            string[] pValues = pColl.GetValues(i);

            // Iterate through the array and add
            // each value to the string variable.
            for(int j = 0; j <= pValues.Length - 1; j++)
                paramInfo += "Value:" + pValues[j] + "<br><br>";


        // Set a Label's Text property to the values
        // contained in the string variable.
        lblValues.Text = paramInfo;

    <form runat="server">
        <asp:Label id="lblValues" runat="server" />

Windows 98, Windows 2000 SP4, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.

.NET Framework

Supported in: 2.0, 1.1, 1.0

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