The ToolbarButtonType.Save type is the only button type that sets this property to true by default. If this property is true, the ToolbarButton will cause a postback to the server when clicked. The WebHtmlEditor.ToolbarClick event will be raised when this is detected. A ToolbarEventArgs object will be passed into the event handler, making the ToolbarButton control responsible for the event available to the event handler.
Target Platforms: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2