ControlAdapter.Render(HtmlTextWriter) Method


Generates the target-specific markup for the control to which the control adapter is attached.

protected public:
 virtual void Render(System::Web::UI::HtmlTextWriter ^ writer);
protected internal virtual void Render (System.Web.UI.HtmlTextWriter writer);
abstract member Render : System.Web.UI.HtmlTextWriter -> unit
override this.Render : System.Web.UI.HtmlTextWriter -> unit
Protected Friend Overridable Sub Render (writer As HtmlTextWriter)



The HtmlTextWriter to use to render the target-specific output.


Override the Render method to generate target-specific markup to send to the client browser. The Render method is called in place of the Control.Render method if a ControlAdapter object is attached to a Control object.

Notes to Inheritors

When you inherit from the ControlAdapter class, the Render(HtmlTextWriter) base method calls the Render(HtmlTextWriter) method. Thus, overrides of the Render(HtmlTextWriter) method should call the Render(HtmlTextWriter) base method only if its processing is in addition to, rather than instead of, the Render(HtmlTextWriter) method.

For a composite control, the adapter developer must ensure that the child controls are rendered. If the Render(HtmlTextWriter) method causes the child controls to be rendered but does not generate markup, it might be appropriate for the Render(HtmlTextWriter) method to call its base method. If target-specific rendering of the child controls is necessary, the adapter should implement the RenderChildren(HtmlTextWriter) method and call the RenderChildren(HtmlTextWriter) method from the Render(HtmlTextWriter) method.

Applies to

See also