HttpServerUtility Class

Provides helper methods for processing Web requests.

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

public sealed class HttpServerUtility
public final class HttpServerUtility
public final class HttpServerUtility
Not applicable.

The methods and properties of the HttpServerUtility class are exposed through the intrinsic Server object provided by ASP.NET.

The following example demonstrates how to use the HtmlEncode method and the UrlEncode method of the HttpServerUtility class. The HtmlEncode method helps ensure that any user-supplied string input will be rendered as static text in browsers instead of executable script or HTML elements. The UrlEncode method encodes URLs so that they are correctly transmitted in the HTTP stream.

<%@ Page Language="C#" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "">

<script runat="server">

    protected void Button1_Click(object sender, EventArgs e)
        if (!String.IsNullOrEmpty(TextBox1.Text))
            // Access the HttpServerUtility methods through
            // the intrinsic Server object.
            Label1.Text = "Welcome, " +
                Server.HtmlEncode(TextBox1.Text) +
                ".<br/> The url is " + 


<html xmlns="" >
<head runat="server">
    <title>HttpServerUtility Example</title>
    <form id="form1" runat="server">
        Enter your name:<br />

        <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
        <asp:Button ID="Button1" runat="server" OnClick="Button1_Click" Text="Submit" />
        <br />
        <asp:Label ID="Label1" runat="server"/>

  • AspNetHostingPermission  for operating in a hosted environment. Demand value: LinkDemand. Permission value: Minimal


Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

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

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0, 1.1, 1.0