// <snippet3>
protected override void Render(HtmlTextWriter writer)
{
// Create an instance of the XhtmlTextWriter class,
// named w, and cast the HtmlTextWriter passed
// in the writer parameter to w.
XhtmlTextWriter w = new XhtmlTextWriter(writer);
// Create a string variable, named value, to hold
// the control's Text property value.
String value = Control.Text;
// Create a Boolean variable, named attTest,
// to test whether the Style attribute is
// valid in the page that the control is
// rendered to.
Boolean attTest = w.IsValidFormAttribute("style");
// Check whether attTest is true or false.
// If true, a style is applied to the XHTML
// content. If false, no style is applied.
if (attTest)
{
w.EnterStyle(Control.ControlStyle);
}
// Write the Text property value of the control,
// a <br> element, and a string. Consider encoding the value using WriteEncodedText.
w.Write(value);
w.WriteBreak();
w.Write("This control conditionally rendered its styles for XHTML.");
// Check whether attTest is true or false.
// If true, the XHTML style is closed.
// If false, nothing is rendered.
if (attTest)
{
w.ExitStyle(Control.ControlStyle);
}
}