Thank you very much for your time :)
On May 24, 8:28 am, Sripathi Krishnan <sripathi.krish...@gmail.com>
wrote:
> GWT creates a hidden iframe with an id equal to whatever your module is
> renamed to. In your case, you had a div with id="Hangman", and GWT inserted
> an iframe with *the exact same id*. This caused the problem you were facing.
> Renaming the div got rid of the duplicate id, and that's why the application
> works.
>
> Its frustrating, I know.
>
> --Sri
>
> On 24 May 2010 20:42, rudolf michael <roud...@gmail.com> wrote:
>
>
>
> > The Id of the DIV always matter whenever you are doing
> > RootPanel.get(myDivId) and it is case sensitive also.
> > this is applicable since GWT beta releases/
>
> > best regards,
> > Rudolf Michael
>
> > On Sat, May 22, 2010 at 2:51 PM, googling1000 <googling1...@gmail.com>wrote:
>
> >> Hi,
>
> >> This is my first attempt at GWT. Hope it will be a joyful experience.
>
> >> I'm trying out a hangman example from this one book called Google Web
> >> Toolkit Applications.
> >> And, I spent the last two days trying to figure out why I couldn't see
> >> anything on the screen, rather than the word "Hangman"
>
> >> Finally, I noticed that the problem was caused by the name of a <div>
> >> inside hangman.html
>
> >> Right now, I'm displaying two buttons and a label.
>
> >> /**********************************************
> >> This is what I have under hangman.java:
> >> **********************************************/
> >> public class HangMan implements EntryPoint {
> >> public void onModuleLoad(){
> >> final Button button = new Button("Click me");
> >> final Label label = new Label();
>
> >> //to display a button with a letter "A"
> >> final char letter = 'A';
> >> final Button alphabutton = new
> >> Button(Character.toString(letter));
> >> RootPanel.get("mydiv").add(alphabutton); //Please notice
> >> that I
> >> named the div "mydiv" and the program works. Had I named the div
> >> "hangman", I would not have seen anything on the screen, except the
> >> word "Hangman"
>
> >> button.addClickHandler(new ClickHandler() {
> >> @Override
> >> public void onClick(ClickEvent event) {
> >> if (label.getText().equals(""))
> >> label.setText("Hello World!");
> >> else
> >> label.setText("");
> >> }
> >> });
> >> //to display a button with the word "Click me"
> >> RootPanel.get("slot1").add(button);
> >> //to display a label
> >> RootPanel.get("slot2").add(label);
> >> }
> >> }
>
> >> /**********************************************
> >> This is what I have under hangman.html:
> >> **********************************************/
> >> <!doctype html>
> >> <html>
> >> <head>
> >> <meta http-equiv="content-type" content="text/html;
> >> charset=UTF-8">
> >> <link type="text/css" rel="stylesheet" href="HangMan.css">
>
> >> <title>Hangman</title>
> >> <style>
> >> body,td,a,div, .p{font-family:arial, sans-serif}
> >> div,td{color:#000000}
> >> a:link,.w,.w a:linnk{color:#0000cc}
> >> a:visited{color: #551a8b}
> >> a:active{color: #ff0000}
> >> </style>
> >> <script type="text/javascript" language="javascript" src="hangman/
> >> hangman.nocache.js"></script>
> >> </head>
>
> >> <body>
> >> <iframe src="javascript:''" id="__gwt_historyFrame" tabIndex='-1'
> >> style="position:absolute;width:0;height:0;border:0"></iframe>
> >> <h1>Hangman</h1>
> >> <div id="mydiv"></div> <!-- NOTE: when I named this div
> >> "hangman", nothing appeared on the screen -->
>
> >> <table align="center">
> >> <tr>
> >> <td id="slot1"></td><td id="slot2"></td>
> >> </tr>
> >> </table>
> >> </body>
> >> </html>
>
> >> I would really like someone to help shed some light no this.
> >> What is the explanation behind this?
> >> And, the Google Web Toolkit Applications book named the <div>
> >> "hangman" and I believe that means it must have worked fine for the
> >> author. Does this mean that maybe the name of the <div> didn't matter
> >> in the earlier versions of GWT?
>
> >> Thank you in advance for any input!
> >> Fran
>
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