In my project(working on Spring and hibernate) i need to keep around 22 HTML dropdown for a form, each dropdown have around 30,000+ entries every dropdown fetching data from database because of this page loading getting delayed (40+ sec) now i wanted to replace dropdown to similar function one, now i thought to keep autocomplete text box, now i wanted to know major performance issues in HTML Dropdown and autocomplete textbox or any suggestion or any alternative for this Thanks in advance.
I think use of autocomplete text box is more beneficial than dropdown.
In case of dropdown, data is loaded at once so it get delayed.
In this case only one request is made to database.
In case of autocomplete text box,data will load in exactly required text box.
So loading time for jsp reduces sharply.
(a) For autocomplete text box,there is no need of using any kind of plugin, as one can manage it easily.
(b) Use simple json format for providing input to text box using ajax.
(c) Define condition on text box for firing ajax request for showing text like..
want to get text after typing 3 characters etc...
You can also use jquery chosen plugin.
You can have normal select box with the jquery chosen plugin applied to that particular select box.
Refer http://davidwalsh.name/jquery-chosen
Related
I am using current BIRT version that is 4.5. I have two master pages in my report. I have huge data to display on a report so i have set some data to display on one master page and the remaining on another master page due to some reason. The problem is when there is no data to display on one of the master page it is rendering a blank page with header and footer of that master page which i want to avoid. In my pdf report how can i avoid this blank page?
Hi, all are pointing to hide tables or other components but my requirement here is, i need to hide the page itself. I dont think there is visibility option for page. even if it is there it is not so useful. Kindly understand that i dont want to display the page itself not only the components in it.so can i expect any help now?
I guess you added the tables directly on the masterpage?
That's not how it works. BIRT will render the (master)page and maybe hide the elements on them (for example a table that has no data. You can do this by setting the visibility property). The problem with this approach is that the Masterpage cannot be 'unrenderred'.
The proper way to fix this, is to add each element on the normal layout. In the properties for each table, grid, etc. you can set the pagebreak properties. Here you can select the Masterpage you want to use. If an element does not need to be rendered (by visibility settings), it wont trigger a 'blank' masterpage.
Hope that helps.
I am trying to fill a website form(compareraja.in) to search and compare mobile phones using java. I currently am using the jaunt library, but I just cant get to know, how to fill an autocompleting textfield, what i want is to select a particular item from the autocompleting list after i apply a certain initial letters to the textfield. Is it possible with jsoup or jaunt or htmlunit or any other library?
if yes, which is the most better and easiest choice ? Also how can it be done?
My clue is that first of all you have to retrieve the whole autocompletion list which appears after you've applied a certain letters. If you open the web page in e. g. Chrome, go to Developer Tools F12, Network Tab, then you will see that each time you type a letter in the textfield, a corresponding XML HTTP Request is logged in the list.
For example, I've typed "htc ":
On the Network Tab the last one XHR Header section contains all the necessary query parameters :
And Response section shows the received data, which is actually being shown in that autocompletion list:
So, you can just make GET XHR to URL http://www.compareraja.in/autocompletedata.ashx?q=htc+&c=mobiles&limit=150 (you can even click this link or paste it to the browser's address line to test), where your URL-encoded initial letters should be placed instead of htc+. It works fine without timestamp parameter for me.
After that it's easy to parse the response, splitting text by \n and ; chars, and fill the textfield with selected item.
I have a java servlet application where the database is populated by selecting an entry from a dropdown list and entering the values. On another page I have the same dropdown list and also have a find button to display the values that were previously entered by selecting an entry from the dropdown list. I want to get rid of this find button and dynamically display the previously entered values on this page. I heard this can be done using ajax. Please help me out.
Since the code is too much to share I have uploaded the snapshots of both the pages.
https://www.dropbox.com/s/10qmpxzwm8sik8a/1.PNG?dl=0
Here I am entering the values in estimate by selecting the project
https://www.dropbox.com/s/w8macftnm3rez3a/2.PNG?dl=0
Here I want to get the values just by selecting the project from the drop-down without clicking the Find button
You need to be specific with your question.
If I got you right...
You can use a variable in javasceipt to hold the value that was enterd on the other page you got.
Then while using the dropdown on the other page you can retrieve the values that you store and use a simple ajax request with json data to your servelet.
Check here for examples: http://api.jquery.com/jquery.ajax/
I am developing a small application with SWT Browser widget. I am highlighting a search text word with
<a id="xyz" href=''><mark>test</mark></a>
in a HTML document. and replace all the search words in HTML Text in this way so we get all the search words highlighted.
htmltext.replaceAll("(?i)"+Pattern.quote(searchword), "\\<a id='xyz' href=''> <mark>$0\\</mark></a>
I want to implement functionality that if I click on next button, next highlighted word should get focus and if I click on previous button previous highlighted text should get focus. how can I accomplish Next and Previous Hit using Javascript in Eclipse RCP application.
This is best solved by combining JavaScript with Java code. It depends what kind of HTML content are you going to handle, if it's stateful (e.g. cannot reload), dynamic with lot of JS code, or plain static. In most cases, the best solution would involve most of logic to be written in JS and just minimal code in Java to bind JS actions to SWT GUI.
There's several things you need to implement:
keyword searching
toggling highlighting
toggling highlight from one word to another
1. Search: you realise that you won't be able to search for words that span through many HTML elements, like W<span>o</span>rd? If that's ok then you can just search and replace from Java as you do now. I'd go for individually tagging each word match with id: <span id="match1"> and remembering how many matches in total were found.
You could likely do such search on JS side as well by adding a function that iterates through DOM and searches for specific text and wraps it with another DOM object.
2. Toggling highlighting: It's best done in JavaScript. Append to your HTML a JS code fragment that toggles DOM element style. Something like:
`
function highlight(id) {
document.getElementById(id).className = 'highlighted'
}
You'll be able to call this JS from SWT by invoking swtBrowser.execute("highlight('match1')")
Further you should implement function that takes off highlighting.
3. Toggling highlighting between elements:
This can be done both on Java side and on JS side. I would probably go with JS and add two more functions: highlightNext() and highlightPrev() that would just call highlight() function with proper ids.
Then in Java you could make SWT buttons that call JS functions through SWTBrowser.execute().
I was wondering that the textbox itself identifies its type and when clicked inside textbox it gives the suggestion for that. For a instance i am creating a textbox for mobile no and when click inside the textbox it correctly detects it. Can anyone explain me how it was coded. It was browser feature or HTML feature?
Here is the Image explanation
This features of modern browsers is called auto-fill option, where the browser recognizes that you have performed a specific search before and suggests information that you have typed before. For sweepers, auto-fill saves a ton of time. When Roboform doesn't fill out a form for me, I usually only have to double-click in the text field and select the data I want from the drop-down list of options. This is particularly useful for daily sweepstakes that require codes.