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HtmlInputHidden Constructor

Initializes a new instance of the HtmlInputHidden class.

Namespace:  System.Web.UI.HtmlControls
Assembly:  System.Web (in System.Web.dll)

public HtmlInputHidden()

Use this constructor to create and initialize a new instance of the HtmlInputHidden class.

The following table shows the initial property value for an instance of HtmlInputHidden.


Initial Value


The "hidden" literal string.

The following code example demonstrates how to create a new instance of the HtmlInputHidden control and place it on the Web page.

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

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
<html xmlns="http://www.w3.org/1999/xhtml" >
   <script runat="server" >

      void Page_Load(Object sender, EventArgs e)
         // Create a new HtmlInputHidden control.
         HtmlInputHidden hidden = new HtmlInputHidden();
         hidden.ID = "HiddenValue";
         hidden.Value = "Hidden Text";

         // Add the control to the Controls collection of the
         // PlaceHolder control.

         // Display the value of the HtmlInputHidden control.
         Message.InnerHtml = 
            "This page contains an HtmlInputHidden control that contains " +
            "the value \"" + 
            ((HtmlInputHidden)Place.FindControl("HiddenValue")).Value + "\"";



<head runat="server">
    <title> HtmlInputHidden Constructor Example </title>

   <form id="form1" runat="server">

      <h3> HtmlInputHidden Constructor Example </h3> 

      <asp:PlaceHolder id="Place" runat="server"/>

         <span id="Message"  




.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

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

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