Re: how to disable backspace button in gwt?

Hi,

Yeah i have added this listener see the code,

 Event.addNativePreviewHandler(new NativePreviewHandler() {

       @Override

       public void onPreviewNativeEvent(NativePreviewEvent event) {

           if (event.getNativeEvent().getKeyCode() == KeyCodes.KEY_BACKSPACE) {

               if (event.getNativeEvent().getEventTarget() != null) {

                   Element as = Element.as(event.getNativeEvent().getEventTarget());

                   boolean readOnly = as.getPropertyBoolean("readOnly");

                   boolean contentEditable = as.getPropertyBoolean("isContentEditable");

                   if (readOnly || !contentEditable) {

                       event.getNativeEvent().stopPropagation();

                       event.getNativeEvent().preventDefault();

                   }

               }

           }

       }

   });

Backspace issue is solved but one more issue its creating in IE.The error message says "

• Make sure the web address //ieframe.dll/dnserror.htm# is correct." when i click the hyperlink(see the attched image).Thanks for your reply

On Friday, July 11, 2014 2:48:29 PM UTC+5:30, Mohammed Sameen wrote:

Hi! 

My application does not need have any history 

support. 

The problem is that when I type something wrong in textbox,its shows warning in dialogbox and accidentally lose focus and 

then press Backspace key to delete a character from textbox,browser performs application to exit and the whole application is unloaded losing all the 

data. 

How can I disable this?Please give me suggestion.

Thanks! 

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