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目前分類：JAVAt程式設計-GWT (7)

瀏覽方式： 標題列表 簡短摘要

 

If keyCode is not caught, catch which:

$('#formid').on('keyup keypress', function(e) {
  var keyCode = e.keyCode || e.which;
  if (keyCode === 13) { 
    e.preventDefault();
    return false;
  }
});

EDIT: missed it, it's better to use keyup instead of keypress

EDIT 2: As in some newer versions of Firefox the form submission is not prevented, it's safer to add the keypress event to the form as well. Also it doesn't work (anymore?) by just binding the event to the form "name" but only to the form id. Therefore I made this more obvious by changing the code example appropriately.

EDIT 3: Changed bind() to on()

全文取自 https://stackoverflow.com/questions/11235622/jquery-disable-form-submit-on-enter 

 

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jquery disable form submit on

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Just a quick question, how would you go about initializing a new ArrayList in a constructor which takes its values as parameters?

For example say I have a class which has an ArrayList of strings called bookings. I've already written a constructor which sets all fields to default values, so sets bookings to a new ArrayList of strings. However, the task I've been given is to write a second constructor which uses parameters to set the field values instead of setting them to defaults. This is fine for all my other fields, but how would I do this with the ArrayList?

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ArrayList JAVA Array

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Question:

I have one small problem i.e. one textbox is their when click on the text box the popup is shows below the text box.The popup contains celltable

i write keypresslisner for textbox when i press Down And UP arrow the focus is set to be cellTable And also we still press down and up arrows its highlites the rows in celltable

Ans:

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JAVA GWT GOOGLE WEB TOOLKIT CELLTABLE FOCUS

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Q:

I am developing a GWT application that render a text on a canvas. I want to resize the canvas whenever browser window resized. The problem is if I used Window.addResizeHandler, the rendering process with each resize will be very slow. So I need a way to resize the canvas only when the user release the mouse button after finishing resize. Is there anyway to do that?

A:

You could add a delay, so that the resize is only processed after the window hasn't been resized for some number of milliseconds:

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java gwt resizehandler windows browser

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Q: Using GWT 1.6.4, I have the following code to retrieve the dimensions of the browser window:

RootPanel panel = RootPanel.get();

int height = panel.getOffsetHeight(); 

int width = panel.getOffsetWidth();

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GWT JAVA

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Java 日期轉字串範列

1.//目前時間
2.Date date = new Date();
3.//設定日期格式
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I assumed the new date picker would entail also an edit field (based on readings in the corresponding wiki).

However this is not the case and you need to display it yourself on a panel. Ok admitted; it is better to have the flexibility to customize it yourself. For those – who like me are a bit rusty on their GWT – a sample piece of code of how to create a button with a popup panel containing the date picker and showing the date in a text box:

It is similar to the sample app that the webAppCreator cmd creates; it assumes an html with two elements defined.

##--CODE_START--##

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gwt datepicker popupwindow

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