Prevents the widget from refreshing until the endUpdate() method is called.
The beginUpdate() and endUpdate() methods prevent the widget from excessive updates when you are changing multiple widget settings at once. After the beginUpdate() method is called, the widget does not update its UI until the endUpdate() method is called.
Refreshes the widget after a call of the beginUpdate() method.
Executes the action associated with this command.
Depending on the layout used for the current view, specific command containers will be available for commands added to this view. Depending on how you define command mapping, the command will be displayed by a specific item of the widget that serves as a command container. When clicking the widget item, the execute() method will be be called for the associated command. This method performs the function assigned to the onExecute command option or calls the navigate() function to navigate to the URL specified for the onExecute command option.