System.Web 1.0.5000.0 2.0.0.0 Gtk# is thread aware, but not thread safe; See the <link location="node:gtk-sharp/programming/threads">Gtk# Thread Programming</link> for details. System.Web.UI.Control System.Web.UI.ControlBuilder(typeof(System.Web.UI.WebControls.PlaceHolderControlBuilder))

In this topic:

Introduction

Declarative Syntax

## Introduction

Use the control as a container to store server controls that are dynamically added to the Web page. The control does not produce any visible output and is used only as a container for other controls on the Web page. You can use the collection to add, insert, or remove a control in the control.

## Declarative Syntax

`<asp:PlaceHolder EnableTheming="True|False" EnableViewState="True|False" ID="string" OnDataBinding="DataBinding event handler" OnDisposed="Disposed event handler" OnInit="Init event handler" OnLoad="Load event handler" OnPreRender="PreRender event handler" OnUnload="Unload event handler" runat="server" SkinID="string" Visible="True|False" />`

Stores dynamically added server controls on the Web page.

- Constructor
  To be added

  Initializes a new instance of the class.

  1.0.5000.0
  2.0.0.0