HtmlGenericControl Class (System.Web.UI.HtmlControls)

HtmlGenericControl Class

.NET Framework Class Library

HtmlGenericControl Class

Defines the methods, properties, and events for all HTML server control elements not represented by a specific .NET Framework class.

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

Syntax

Visual Basic (Declaration)

<AspNetHostingPermissionAttribute(SecurityAction.InheritanceDemand, Level := AspNetHostingPermissionLevel.Minimal)> _
<AspNetHostingPermissionAttribute(SecurityAction.LinkDemand, Level := AspNetHostingPermissionLevel.Minimal)> _
Public Class HtmlGenericControl _
    Inherits HtmlContainerControl

Visual Basic (Usage)

Dim instance As HtmlGenericControl

[AspNetHostingPermissionAttribute(SecurityAction.InheritanceDemand, Level = AspNetHostingPermissionLevel.Minimal)]
[AspNetHostingPermissionAttribute(SecurityAction.LinkDemand, Level = AspNetHostingPermissionLevel.Minimal)]
public class HtmlGenericControl : HtmlContainerControl

Visual C++

[AspNetHostingPermissionAttribute(SecurityAction::InheritanceDemand, Level = AspNetHostingPermissionLevel::Minimal)]
[AspNetHostingPermissionAttribute(SecurityAction::LinkDemand, Level = AspNetHostingPermissionLevel::Minimal)]
public ref class HtmlGenericControl : public HtmlContainerControl

JScript

public class HtmlGenericControl extends HtmlContainerControl

ASP.NET

<asp:HtmlGenericControl />

Remarks

Use this class to represent an HTML server control element not directly represented by a .NET Framework class, such as <span>, <div>, <body>, or <font>.

For a list of initial property values for an instance of HtmlGenericControl, see the HtmlGenericControl constructor.

Caution:
This control can be used to display user input, which might include malicious client script. Check any information that is sent from a client for executable script, SQL statements, or other code before displaying it in your application. ASP.NET provides an input request validation feature to block script and HTML in user input. Validation server controls are also provided to assess user input. For more information, see Validation Server Control Syntax and Validating User Input in ASP.NET Web Pages.

Caution:

This control can be used to display user input, which might include malicious client script. Check any information that is sent from a client for executable script, SQL statements, or other code before displaying it in your application. ASP.NET provides an input request validation feature to block script and HTML in user input. Validation server controls are also provided to assess user input. For more information, see Validation Server Control Syntax and Validating User Input in ASP.NET Web Pages.

Topic	Location
How to: Add HTML Server Controls to a Web Page Using ASP.NET Syntax	Building ASP .NET Web Applications
How to: Add HTML Server Controls to a Web Page Using ASP.NET Syntax	Building ASP .NET Web Applications
How to: Add HTML Server Controls to a Web Page Using ASP.NET Syntax	Building ASP .NET Web Applications in Visual Studio
How to: Add HTML Server Controls to a Web Page Using ASP.NET Syntax	Building ASP .NET Web Applications in Visual Studio
How to: Set HTML Server Control Properties Programmatically	Building ASP .NET Web Applications
How to: Set HTML Server Control Properties Programmatically	Building ASP .NET Web Applications
How to: Set HTML Server Control Properties Programmatically	Building ASP .NET Web Applications in Visual Studio
How to: Set HTML Server Control Properties Programmatically	Building ASP .NET Web Applications in Visual Studio

Examples

The following code example demonstrates how to use the HtmlGenericControl class to represent the <body> element.

Visual Basic

<%@ Page Language="VB" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<script runat="server">

  Protected Sub SubmitBtn_Click(ByVal sender As Object, ByVal e As System.EventArgs)

    Body.Attributes("bgcolor") = ColorSelect.Value

  End Sub

</script>

<html  >
<head runat="server">
  <title>HtmlGenericControl Example</title> 
</head>

<body id="Body" 
      runat="server">

     <h3>HtmlGenericControl Example</h3>

     <form id="form1" runat="server">
     <div>
       <br />
       Select a background color for the page: <br />
       <select id="ColorSelect" 
               runat="server">
           <option>White</option>
           <option>LightBlue</option>
           <option>LightGreen</option>
           <option>Yellow</option>
       </select>

       <input type="submit" 
              runat="server" 
              value="Apply" 
              onserverclick="SubmitBtn_Click" id="Submit1" />
     </div> 
     </form>

 </body>
 </html>

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

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">

  protected void SubmitBtn_Click(object sender, EventArgs e)
  {
    Body.Attributes["bgcolor"] = ColorSelect.Value;
  }
</script>

<html  >
<head runat="server">
  <title>HtmlGenericControl Example</title> 
</head>

<body id="Body" 
      runat="server">

     <h3>HtmlGenericControl Example</h3>

     <form id="form1" runat="server">
     <div>
       <br />
       Select a background color for the page: <br />
       <select id="ColorSelect" 
               runat="server">
           <option>White</option>
           <option>LightBlue</option>
           <option>LightGreen</option>
           <option>Yellow</option>
       </select>

       <input type="submit" 
              runat="server" 
              value="Apply" 
              onserverclick="SubmitBtn_Click" id="Submit1" />
     </div>
     </form>

 </body>
 </html>

JScript

<%@ Page Language="JScript" AutoEventWireup="True" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html  >
 <head>
    <title>HtmlGenericControl Sample</title>
<script language="jscript" runat="server">

    function SubmitBtn_Click(sender: Object, e: EventArgs){
        Body.Attributes("bgcolor") = ColorSelect.Value
    }

   </script>

 </head>

 <body id="Body" runat="server">

     <h3>HtmlGenericControl Sample</h3>

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

       <br />
       Select a background color for the page: <br />
       <select id="ColorSelect" runat="server">
           <option>White</option>
           <option>LightBlue</option>
           <option>LightGreen</option>
           <option>Yellow</option>
       </select>

       <input type="submit" runat="server" value="Apply" onserverclick="SubmitBtn_Click" />

     </form>

 </body>
 </html>

.NET Framework Security

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

Inheritance Hierarchy

System..::.Object
  System.Web.UI..::.Control
    System.Web.UI.HtmlControls..::.HtmlControl
      System.Web.UI.HtmlControls..::.HtmlContainerControl
        System.Web.UI.HtmlControls..::.HtmlGenericControl
          System.Web.UI.HtmlControls..::.HtmlHead

Thread Safety

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

Platforms

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

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

Version Information

.NET Framework

Supported in: 3.5, 3.0, 2.0, 1.1, 1.0

Reference

HtmlGenericControl Members

System.Web.UI.HtmlControls Namespace

HtmlContainerControl

Other Resources

HtmlGenericControl Server Control Declarative Syntax

HTML Server Controls