Button.click() not working

Versão em português

Problem

When calling the method Button.click () (class of GWT) nothing happens. Ex:

...

Button button = new Button ( "Button");

button.addClickHandler (new ClickHandler () (

@ Override

public void onClick (ClickEvent event) (

throw new RuntimeException ( "RuntimeException");

)));

button.click ();

...

This code, in principle, should launch an exception.

Reason

The button, or an object that contains it, was not added to RootPanel.

Solution

Add the widget to RootPanel. Ex:

...

Button button = new Button ( "Button");

RootPanel.get (). Add (button);

button.addClickHandler (new ClickHandler () (

@ Override

public void onClick (ClickEvent event) (

throw new RuntimeException ( "RuntimeException");

)));

button.click ();

...

More:

http://davidmaddison.blogspot.com/2008/12/gwt-rendering-process.html

http://groups.google.com/group/Google-Web-Toolkit/browse_thread/thread/bbf7447ce1bf589d?pli=1