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HttpCapabilitiesBase.RequiresUrlEncodedPostfieldValues Property

Gets a value indicating whether postback data sent by the browser will be UrlEncoded.

Namespace:  System.Web.Configuration
Assembly:  System.Web (in System.Web.dll)

public virtual bool RequiresUrlEncodedPostfieldValues { get; }

Property Value

Type: System.Boolean
true if postback data sent by the browser will be UrlEncoded; otherwise, false. The default is false.

The following code example shows how to determine whether the browser UrlEncodes postback data.

<%@ page language="C#"%>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
<script runat="server">
    void Page_Load(Object Sender, EventArgs e)

    void CheckBrowserCaps()
        String labelText = "";
        System.Web.HttpBrowserCapabilities myBrowserCaps = Request.Browser;
        if (((System.Web.Configuration.HttpCapabilitiesBase)myBrowserCaps).RequiresUrlEncodedPostfieldValues)
            labelText = "Browser sends URLEncoded postback data.";
            labelText = "Browser does not send URLEncoded postback data.";

        Label1.Text = labelText;

<html xmlns="" >
    <title>Browser Capabilities Sample</title>
    <form runat="server" id="form1">
            Browser Capabilities:
            <p/><asp:Label ID="Label1" Runat="server" />

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

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