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  • jQuery: Trouble with draggable across cloned elements

    - by Rosarch
    I'm trying to implement: User drags a draggable li to a droppable li. The original li is no longer draggable A new li is cloned from the original li, and is appended to the droppable li. I can't get it to work. function moveToTerm(original_course, helper, term) { var cloned_course = original_course.clone(true); original_course.addClass('already-scheduled'); original_course.draggable('disable'); cloned_course.draggable(); cloned_course.appendTo(term).hide().fadeIn('slow'); } This works fine, except now the cloned_course is not draggable. A droppable li: <li class="term ui-droppable"> <strong>Fall 2010</strong> <li class="course">Computing Cultures</li> <!-- this course was just dropped. I want it to be draggable but it's not --> <li class="course ui-draggable" style="display: list-item;">New Media and Society</li> </li> What am I doing wrong?

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  • jQuery slideDown + CSS Floats

    - by danilo
    I'm using a HTML Table with several rows. Every second row - containing details about the preceding row - is hidden using CSS. When clicking the first row, the second row gets showed using jQuery show(). This is quite nice, but I would prefer the slideDown-Effect. The problem is, inside the details row, there are two floating DIVs, one floating on the left, and one on the right. Now if i slideDown the previously hidden row, the contained DIVs behave strange and "jump around". See this animated gif to understand what I mean: http://ich-wars-nicht.ch/tmp/lunapic_127365879362365_.gif The markup: <tr class="row-vm"> <td>...</td> ... </tr> <tr class="row-details"> <td colspan="8"> <div class="vmdetail-left"> ... </div> <div class="vmdetail-right"> ... </div> </td> </tr> The CSS: .table-vmlist tr.row-details { display: none; } div.vmdetail-left { float: left; width: 50%; } div.vmdetail-right { float: right; width: 50%; } And the jQuery code: if ($(this).next().css('display') == 'none') { // Show details //$(this).next().show(); $(this).next().slideDown(); } else { // Hide details //$(this).next().hide(); $(this).next().slideUp(); } Is there a way to fix this behavior, and to implement a nice slideDown-effect?

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  • jQuery selectable with a single element deselected by clicking

    - by BerggreenDK
    I would like to be able to deselect a selected item by clicking or using lasso, just like in Photoshop where I keep another key down to "deselect" parts of an existing selection. Is this possible? As I understand "jQuery UI selectable". There is only "single click" with or without CTRL to add multiple and then the quick lasso. I am trying to see how it would be possible to deselect, one or two elements of a whole selection by clicking them off again. Eg, you drag the lasso and get 30 elements but finds that 1 does not need to be part of this selection. You click it and deselects it. So something that reacts to the existing selection and removes the choosen element. Or with the lasso, you make a lasso selection. Gets 30 elements. Then you draw a new lasso, this time starting on an already selected element, now it default deselects and so does the rest of the group marked. I believe this should be customizable behaviour for the jQueryUI if anything. But is the "single deselect" possible with a simple jQuery hack or will it demand a lot of code?

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  • jQuery logic firing twice from a Usercontrol when used in a jQueryUI modal dialog

    - by AaronS
    I have an asp.net usercontrol that I'm using to put a bunch of HTML and Jquery logic into to be shared on several pages. This usercontrol has some dropdown boxes loaded from json calls and has no added codebehind logic. When I use this usercontrol on a normal page it works perfectly fine, and no issues at all. However, when I wrap the usercontrol in a div, and use a jqueryUI modal dialog, everything in the usercontrol fires twice. Not only code in the initial $(document).ready(function() {});, but also every function is also fired twice when called. Debugging this in Visual Studio, I see that everything is first being called from the external JS file, and then again from a "script block" file that is somehow getting generated on the fly. This script block file isn't getting generated on a page that doesn't wrap the user control in a modal. The same happens if I use IISExpress or IIS7. The question is, why is this script block file getting created, and why is all my jQuery logic firing twice? --edit-- Here is the div: <div id="divMyDiv" title="MyDiv"> <uc1:MyUserControl runat="server" ID="MyUsercontrol" /> </div> Here is the modal logic that uses it: $("#divMyDiv").dialog({ autoOpen: false, height: 400, width: 400, modal: true, open: function (type, data) { $(this).parent().appendTo("form"); } }); Note: The problm still occurs, even if I remove the "open:" function. But, it does not occur if I remove the entire dialog block, so it is specific to this dialog call.

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  • jQuery AJAX Validation Using The Validity Plugin

    - by schnieds
    Input validation is one of those areas that most developers view as a necessary evil. We know that it is necessary and we really do want to ensure that we get good input from our users. But most of us are lazy (me included) and input validation is one of those things that gets done but usually is a quick and dirty implementation. This is partly due to laziness and partly do to input validation being painful. Thanks to the amazing jQuery Validity plug in, input validation can be really slick, easy and robust enough to work any any scenario. I specifically like the Validity plugin because it supports jQuery AJAX input validation. Other input validation implementations that I have worked with require a form post to take place. However, if you are using jQuery.ajax methods then there isn’t a form and you need to validate the formless input. [Read More] Aaron Schniederhttp://www.churchofficeonline.com

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  • Separating physics and game logic from UI code

    - by futlib
    I'm working on a simple block-based puzzle game. The game play consists pretty much of moving blocks around in the game area, so it's a trivial physics simulation. My implementation, however, is in my opinion far from ideal and I'm wondering if you can give me any pointers on how to do it better. I've split the code up into two areas: Game logic and UI, as I did with a lot of puzzle games: The game logic is responsible for the general rules of the game (e.g. the formal rule system in chess) The UI displays the game area and pieces (e.g. chess board and pieces) and is responsible for animations (e.g. animated movement of chess pieces) The game logic represents the game state as a logical grid, where each unit is one cell's width/height on the grid. So for a grid of width 6, you can move a block of width 2 four times until it collides with the boundary. The UI takes this grid, and draws it by converting logical sizes into pixel sizes (that is, multiplies it by a constant). However, since the game has hardly any game logic, my game logic layer [1] doesn't have much to do except collision detection. Here's how it works: Player starts to drag a piece UI asks game logic for the legal movement area of that piece and lets the player drag it within that area Player lets go of a piece UI snaps the piece to the grid (so that it is at a valid logical position) UI tells game logic the new logical position (via mutator methods, which I'd rather avoid) I'm not quite happy with that: I'm writing unit tests for my game logic layer, but not the UI, and it turned out all the tricky code is in the UI: Stopping the piece from colliding with others or the boundary and snapping it to the grid. I don't like the fact that the UI tells the game logic about the new state, I would rather have it call a movePieceLeft() method or something like that, as in my other games, but I didn't get far with that approach, because the game logic knows nothing about the dragging and snapping that's possible in the UI. I think the best thing to do would be to get rid of my game logic layer and implement a physics layer instead. I've got a few questions regarding that: Is such a physics layer common, or is it more typical to have the game logic layer do this? Would the snapping to grid and piece dragging code belong to the UI or the physics layer? Would such a physics layer typically work with pixel sizes or with some kind of logical unit, like my game logic layer? I've seen event-based collision detection in a game's code base once, that is, the player would just drag the piece, the UI would render that obediently and notify the physics system, and the physics system would call a onCollision() method on the piece once a collision is detected. What is more common? This approach or asking for the legal movement area first? [1] layer is probably not the right word for what I mean, but subsystem sounds overblown and class is misguiding, because each layer can consist of several classes.

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  • creating a google wave clone using php/mysql/jquery

    - by jeansymolanza
    seasons greetings to all. i have a question that has been rather bugging me as of late. does anyone know how one can create a google wave clone using php/mysql/jquery as primary points of development. any ideas on how this might be possible and recommend any starting points? i have some time off work and it would be an interesting project to undertake as i want to use it in an e-learning framework next year. i will be testing the product on a XAMPP local server. i understand some of the technologies that google wave using but i am rather curious as to how these can be developed to a decent standard using php/mysql/jquery (i mention these three because i am quite adept at them). any links to resources best suited to an intermediate programmer would be appreciated. many thanks and God bless. so far i have this: http://konrness.com/javascript/google-wave-style-scroll-bar-jquery-plugin/

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  • Learning from jQuery - Solid fundament for experienced jQuery developers

    Frankly speaking, I had to sleep a night over before typing this review. And even now it is not an easy, straight-forward task to write this recension. I'm not sure whether I'm the right kind of audience this title is actually addressed to. It clearly states that this book is for web developers which are very familiar with jQuery library but would like to extend their knowledge to vanilla JavaScript. Not being part of this particular group it felt strange to go through the various chapters after all. This title is clearly addressed to experienced jQuery users and developers especially while looking for improvements in performance and better ways of optimisations. Sometimes just to simplify the existing jQuery code in order to avoid the heavy load of the complete jQuery library and sometimes for the better understanding of JavaScript and its syntax. Callum's style of writing is clear and the numerous code samples used to emphasize the various techniques are good ones and easy to understand. Quite interestingly, it put a light smile on my face when I compared his sample code of sending an AJAX request to some code in one of my own blog articles I wrote back in 2006 (in German language). JavaScript is clearly a mature language and certain requirements are simply done this way. And Callum explains the nuts and bolts of JavaScript very well. Personally, I gained most out of this book from chapter 5 - JavaScript Conventions. The paragraphs and code snippets on Optimizations and Common Antipatterns gave me a better understanding on various aspects of JavaScript development, and I definitely have to revise a couple of code fragments I have written in the past. Overall the book provides solid information on JavaScript for jQuery developers and is worth the money spent. Just be sure that you're part of the targeted audience.

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  • Sum of two Textbox values into third Textbox using JQuery

    - by Rajneesh Verma
    A script that sums up two textbox values using jQuery. **Note that I am not using any validation for textbox values. <html xmlns= "http://www.w3.org/1999/xhtml" > <head runat= "server" > <title></title> <script type= "text/javascript" src= "http://ajax.googleapis.com/ajax/libs/jquery/1.4.4/jquery.min.js" ></script> <script type= "text/javascript" > $(function () { var textBox1 = $( 'input:text[id$=TextBox1...(read more)

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  • Alternatives for saving data with jquery

    - by Phil Vallone
    I am not sure if this question is considered too broad, but I would like to reach out to my fellow programmers to see what alternatives are out there for saving data using jquery. I have a content management system that generates an set of HTML pages called an IETM (Interactive Electronic Technical Manual). The HTML pages are written in HTML and uses jquery. The ITEM is meant to be light weight, portable and run on most modern browsers. I am looking for a way to save data. I have considered cookies and sqlite. Are there any other alternatives for saving data using jquery?

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  • Selecting Dynamic ID JQuery [migrated]

    - by Vedran Wex Maricevic
    I need to select dynamic id using JQuery, and once I select it then I need to do some action on it. This is the HTML that I have: <input id="content_photos_attributes_1355755712119_image" name="content[photos_attributes][1355755712119][image]" size="30" type="file"> Please note the id value, text is always the same however the number changes (I do not have control over that change). What I need to do is to create on click for that element. This is what I got so far, and it is not working. <script type="text/javascript"> jQuery.noConflict(); jQuery("input[id *= 'content_photos_attributes_']").click(function() { alert("Image deletion is clicked"); }); </script> It really makes no difference whether I select that element by ID or by its name.

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  • How to improve UI development skills (for a Java developer)?

    - by bluetech
    I have worked on backend development with mostly Java. For past 6 months I have been working on UI a lot and I want to improve my skills. I am aware of HTML, CSS and JavaScript (also jQuery and YUI) but I have never been able to master them so that I can develop efficient and maintainable solutions much quicker than how I do now. Can other UI developers give me any tips/resources? I also wanted to learn about patterns and best practices for UI development.

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  • Jquery Datepicker with XML file

    - by matt
    an extension of my last question, http://stackoverflow.com/questions/2562986/getdate-with-jquery-datepicker , I am trying to use the jquery datepicker to load specific info from xml file dependent on the date selected by the user. Similar code but i am trying to load and parse an xml file to read contents of the file for the particular date. In a perfect world the user would tap a date and below the datepicker html output would give the user specific times for the selected date instead of my last project of an image. my probelm is nothing is loading, so my question is what am i doing wrong? my code is as follows <!DOCTYPE html> <link type="text/css" href="css/ui-darkness/jquery-ui-1.8.custom.css" rel="stylesheet" /> <script type="text/javascript" src="js/jquery-1.4.2.min.js"></script> <script type="text/javascript" src="js/jquery-ui-1.8.custom.min.js"></script> <script type="text/javascript"> $(function(){ // Datepicker $('#datepicker').datepicker({ dateFormat: 'yy-mm-dd', inline: true, minDate: new Date(2010, 1 - 1, 1), maxDate:new Date(2010, 12 - 1, 31), altField: '#datepicker_value', onSelect: function(){ var day1 = $("#datepicker").datepicker('getDate').getDate(); var month1 = $("#datepicker").datepicker('getDate').getMonth() + 1; var year1 = $("#datepicker").datepicker('getDate').getFullYear(); var fullDate = year1 + "" + month1 + "" + day1; //var str_output ="<img src=\"http://69.89.20.27/images/a" + fullDate +".png\" width=\"100%\"/>"; //"<h1>"+fullDate+"</h1>"; //"<img src=\"http://69.*.*.*/images/a" + fullDate +".png\"/>"; //$('#page_output').html(str_output); var doc = loadXMLDoc('date.xml'); // loading the XML file var el = doc.getElementsByTagName('_'+date); // retrieving the elements corrsponding to a date, eg: _20100103 var page_output = document.getElementById('page_output'); if(el.length >= 1) { // matched XML data found for the specified date var dt = el[0].getElementsByTagName('date'); var great_times = el[0].getElementsByTagName('great_times'); var good_times = el[0].getElementsByTagName('good_times'); var str_output = "<h1><center>" + dt[0].childNodes[0].nodeValue + "</center></h1><br/><br>"; str_output += "<b>Excellent Times:</b><br> " + great_times[0].childNodes[0].nodeValue + "<br/><br>"; str_output += "<b>Good Times:</b><br> " + good_times[0].childNodes[0].nodeValue + "<br/><br>"; $('#page_output').html(str_output);// writing the results to the div element (page_out) } else { alert("Sorry","Action not allowed on this page"); page_output.innerHTML = ''; // No XML data found for the selected date reloadmainwDate(); return false; } return true; } }); //hover states on the static widgets $('#dialog_link, ul#icons li').hover( function() { $(this).addClass('ui-state-hover'); }, function() { $(this).removeClass('ui-state-hover'); } ); }); //var img_date = .datepicker('getDate'); //var day1 = $("#datepicker").datepicker('getDate').getDate(); //var month1 = $("#datepicker").datepicker('getDate').getMonth() + 1; //var year1 = $("#datepicker").datepicker('getDate').getFullYear(); //var fullDate = year1 + "-" + month1 + "-" + day1; //var date = $('#datepicker').datepicker({ dateFormat: 'dd-mm-yy' }); //var str_output = "<h1><center><p>"+ date + "</p></center></h1>"; //$('#page_output')[0].innerHTML = str_output; // writing the results to the div element (page_out) </script> <script> function loadXMLDoc(dname) { var xmlDoc; // IE 5 and IE 6 if(typeof ActiveXObject != 'undefined') { xmlDoc=new ActiveXObject("Microsoft.XMLDOM"); xmlDoc.async=false; xmlDoc.load(dname); return xmlDoc; } else if (window.XMLHttpRequest) // firefox { xmlDoc=new window.XMLHttpRequest(); xmlDoc.open("GET",dname,false); xmlDoc.send(""); return xmlDoc.responseXML; } alert("Error loading document"); return null; } <!-- Datepicker --> <div id="datepicker"></div> <!-- Highlight / Error --> <div id="page_output"></div> </body>

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  • How to set background image for Android button but keep the gray button?

    - by Jason Whiler
    I need to set a background image for an android button (text button), but I want to keep the gray button. When i use the setBackgroundResource() it has the image in place of the gray button. How can I keep the gray button? I tried using setCompoundDrawablesWithIntrinsicBounds, but the image only takes up part of the button, even when I have no text. Notes: I will not have text while I display the image, but the button needs to be a TextButton because there will be text without images at times, and images with text at others.

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  • [PyGTK] How to Create a Multiline Button

    - by EShull
    I'm trying to create a multiline button with PyGTK. I have a label added to my subclass of gtk.Button, but I'm having trouble sizing the label to the button. If the label makes it's own size, there is no text wrapping even with label.set_line_wrap(True) because the label simply resizes beyond the bounds of the button. I would set the size of the label to that of the button, but unless I explicitly set the size of the button using set_size_request, I haven't been able to find out how big the button is (it's packed in a table). Any suggestions?

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  • jQuery inserting comment help

    - by StealthRT
    Hey all, i am trying to learn how to insert a comment within some html code without having to refresh the page. I know jQuery is capable of inserting a comment into a div area but i am having problems finding an example like that with fading in. Here is my comment code: <div id="CommentBox122" style="width:80%; padding:2px; margin-left:25px;"> <table width="650px" border="0" cellpadding="0" cellspacing="5" style="margin-left:20px; background-color: #F8F8F8; border-bottom:#CCC solid 1px;"><tr> <td width="10%" rowspan="2" align="center" class="Commentimage"><img src="img/avatar/gkrgimmkdhmggfh.jpg" height="60" /></td> <td width="90%" class="Commentposted">Posted by me on Saturday, May 01, 2010 @ 4:37: PM</td></tr> <tr><td class="Commentsaying">this is a test comment</td></tr> </table> <div id="stylized" class="myform" align="center"> <form id="CommentForm122" name="CommentForm122"> <div align="center" style="text-align:center; color:#F00; font-family:Arial, Helvetica, sans-serif; font-weight:bold;">Would you like to leave a comment, Robert?</div> <textarea name="txtComment" class="box" id="txtComment"></textarea> <input name="txtpostid" type="text" id="txtpostid" style="visibility:hidden; display:none; height:0px; width:0px;" value="Demo43639" /> <div class="buttons" align="center"> <button type="button" id="Button122" name="Button122" class="positive" onclick="doStuff();"><img name="Submit" src="img\buttonimgComment.png" alt="" />Post Comment</button> </div> </form> </div> </div> The code i need to insert again would be: <table width="650px" border="0" cellpadding="0" cellspacing="5" style="margin-left:20px; background-color: #F8F8F8; border-bottom:#CCC solid 1px;"><tr> <td width="10%" rowspan="2" align="center" class="Commentimage"><img src="img/avatar/gkrgimmkdhmggfh.jpg" height="60" /></td> <td width="90%" class="Commentposted">Posted by me on Saturday, May 01, 2010 @ 4:37: PM</td></tr> <tr><td class="Commentsaying">this is a test comment</td></tr> </table> But again, i am unable to find an example using jQuery to automatically insert that part of the code under the other "table /table" box.. So after its inserted by jQuery, the code should look like this: <div id="CommentBox122" style="width:80%; padding:2px; margin-left:25px;"> <table width="650px" border="0" cellpadding="0" cellspacing="5" style="margin-left:20px; background-color: #F8F8F8; border-bottom:#CCC solid 1px;"><tr> <td width="10%" rowspan="2" align="center" class="Commentimage"><img src="img/avatar/gkrgimmkdhmggfh.jpg" height="60" /></td> <td width="90%" class="Commentposted">Posted by me on Saturday, May 01, 2010 @ 4:37: PM</td></tr> <tr><td class="Commentsaying">this is a test comment</td></tr> </table> <table width="650px" border="0" cellpadding="0" cellspacing="5" style="margin-left:20px; background-color: #F8F8F8; border-bottom:#CCC solid 1px;"><tr> <td width="10%" rowspan="2" align="center" class="Commentimage"><img src="img/avatar/gkrgimmkdhmggfh.jpg" height="60" /></td> <td width="90%" class="Commentposted">Posted by me on Saturday, May 01, 2010 @ 4:37: PM</td></tr> <tr><td class="Commentsaying">this is a test comment</td></tr> </table> <div id="stylized" class="myform" align="center"> <form id="CommentForm122" name="CommentForm122"> <div align="center" style="text-align:center; color:#F00; font-family:Arial, Helvetica, sans-serif; font-weight:bold;">Would you like to leave a comment, Robert?</div> <textarea name="txtComment" class="box" id="txtComment"></textarea> <input name="txtpostid" type="text" id="txtpostid" style="visibility:hidden; display:none; height:0px; width:0px;" value="Demo43639" /> <div class="buttons" align="center"> <button type="button" id="Button122" name="Button122" class="positive" onclick="doStuff();"><img name="Submit" src="img\buttonimgComment.png" alt="" />Post Comment</button> </div> </form> </div> </div> As always, any help would be great! :o) David

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  • Android add image to button

    - by Christiaan de Jong
    I want to add an image to a Button (no imagebutton, as the particular button can either contain text or an image; plus the imagebutton has the same problem), while still retaining the original android-style button. So adding android:background in the XML doesn't cut it, as that will remove the android default button with rounded corners etc. (android.R.drawable.btn_default) Is this in any way possible? I think one way is to make a 9patch image for the button pressed (one for up and one for down) and onTouch Action_DOWN make a layered background drawable and put that onto the button, and doing the same thing but with another 9patch for onTouch Action_UP, but I think that will decrease the performance of the application substantially, as that will require quite a lot of resource reading and layer merging for all the button clicks (and for my application, that will be quite a lot). Is what I state above correct?

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  • form submits in FireFox when any button on page is clicked

    - by RememberME
    First time using Asp.net-mvc and originally followed the NerdDinner tutorial. My form submit button looks like this: <p> <input type="submit" value="Save" /> </p> I've now added another button to the page with jQuery code attached. It works in IE, but when I test in FireFox the form submits. I tried adding another button, this time with no attached jQuery code and the same thing happens. When the button is clicked, the form submits. <button id="random-button">Do Nothing</button> ??

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  • Building a jQuery Plug-in to make an HTML Table scrollable

    - by Rick Strahl
    Today I got a call from a customer and we were looking over an older application that uses a lot of tables to display financial and other assorted data. The application is mostly meta-data driven with lots of layout formatting automatically driven through meta data rather than through explicit hand coded HTML layouts. One of the problems in this apps are tables that display a non-fixed amount of data. The users of this app don't want to use paging to see more data, but instead want to display overflow data using a scrollbar. Many of the forms are very densely populated, often with multiple data tables that display a few rows of data in the UI at the most. This sort of layout does not lend itself well to paging, but works much better with scrollable data. Unfortunately scrollable tables are not easily created. HTML Tables are mangy beasts as anybody who's done any sort of Web development knows. Tables are finicky when it comes to styling and layout, and they have many funky quirks, especially when it comes to scrolling both of the table rows themselves or even the child columns. There's no built-in way to make tables scroll and to lock headers while you do, and while you can embed a table (or anything really) into a scrolling div with something like this: <div style="position:relative; overflow: hidden; overflow-y: scroll; height: 200px; width: 400px;"> <table id="table" style="width: 100%" class="blackborder" > <thead> <tr class="gridheader"> <th>Column 1</th> <th>Column 2</th> <th>Column 3</th> <th >Column 4</th> </tr> </thead> <tbody> <tr> <td>Column 1 Content</td> <td>Column 2 Content</td> <td>Column 3 Content</td> <td>Column 4 Content</td> </tr> <tr> <td>Column 1 Content</td> <td>Column 2 Content</td> <td>Column 3 Content</td> <td>Column 4 Content</td> </tr> … </tbody> </table> </div> </div> that won't give a very satisfying visual experience: Both the header and body scroll which looks odd. You lose context as soon as the header scrolls off the top and when you reach the bottom of the list the bottom outline of the table shows which also looks off. The the side bar shows all the way down the length of the table yet another visual miscue. In a pinch this will work, but it's ugly. What's out there? Before we go further here you should know that there are a few capable grid plug-ins out there already. Among them: Flexigrid (can work of any table as well as with AJAX data) jQuery Scrollable Table Plug-in (feature similar to what I need but not quite) jqGrid (mostly an Ajax Grid which is very powerful and works very well) But in the end none of them fit the bill of what I needed in this situation. All of these require custom CSS and some of them are fairly complex to restyle. Others are AJAX only or work better with AJAX loaded data. However, I need to actually try (as much as possible) to maintain the original styling of the tables without requiring extensive re-styling. Building the makeTableScrollable() Plug-in To make a table scrollable requires rearranging the table a bit. In the plug-in I built I create two <div> tags and split the table into two: one for the table header and one for the table body. The bottom <div> tag then contains only the table's row data and can be scrolled while the header stays fixed. Using jQuery the basic idea is pretty simple: You create the divs, copy the original table into the bottom, then clone the table, clear all content append the <thead> section, into new table and then copy that table into the second header <div>. Easy as pie, right? Unfortunately it's a bit more complicated than that as it's tricky to get the width of the table right to account for the scrollbar (by adding a small column) and making sure the borders properly line up for the two tables. A lot of style settings have to be made to ensure the table is a fixed size, to remove and reattach borders, to add extra space to allow for the scrollbar and so forth. The end result of my plug-in is a table with a scrollbar. Using the same table I used earlier the result looks like this: To create it, I use the following jQuery plug-in logic to select my table and run the makeTableScrollable() plug-in against the selector: $("#table").makeTableScrollable( { cssClass:"blackborder"} ); Without much further ado, here's the short code for the plug-in: (function ($) { $.fn.makeTableScrollable = function (options) { return this.each(function () { var $table = $(this); var opt = { // height of the table height: "250px", // right padding added to support the scrollbar rightPadding: "10px", // cssclass used for the wrapper div cssClass: "" } $.extend(opt, options); var $thead = $table.find("thead"); var $ths = $thead.find("th"); var id = $table.attr("id"); var cssClass = $table.attr("class"); if (!id) id = "_table_" + new Date().getMilliseconds().ToString(); $table.width("+=" + opt.rightPadding); $table.css("border-width", 0); // add a column to all rows of the table var first = true; $table.find("tr").each(function () { var row = $(this); if (first) { row.append($("<th>").width(opt.rightPadding)); first = false; } else row.append($("<td>").width(opt.rightPadding)); }); // force full sizing on each of the th elemnts $ths.each(function () { var $th = $(this); $th.css("width", $th.width()); }); // Create the table wrapper div var $tblDiv = $("<div>").css({ position: "relative", overflow: "hidden", overflowY: "scroll" }) .addClass(opt.cssClass); var width = $table.width(); $tblDiv.width(width).height(opt.height) .attr("id", id + "_wrapper") .css("border-top", "none"); // Insert before $tblDiv $tblDiv.insertBefore($table); // then move the table into it $table.appendTo($tblDiv); // Clone the div for header var $hdDiv = $tblDiv.clone(); $hdDiv.empty(); var width = $table.width(); $hdDiv.attr("style", "") .css("border-bottom", "none") .width(width) .attr("id", id + "_wrapper_header"); // create a copy of the table and remove all children var $newTable = $($table).clone(); $newTable.empty() .attr("id", $table.attr("id") + "_header"); $thead.appendTo($newTable); $hdDiv.insertBefore($tblDiv); $newTable.appendTo($hdDiv); $table.css("border-width", 0); }); } })(jQuery); Oh sweet spaghetti code :-) The code starts out by dealing the parameters that can be passed in the options object map: height The height of the full table/structure. The height of the outside wrapper container. Defaults to 200px. rightPadding The padding that is added to the right of the table to account for the scrollbar. Creates a column of this width and injects it into the table. If too small the rightmost column might get truncated. if too large the empty column might show. cssClass The CSS class of the wrapping container that appears to wrap the table. If you want a border around your table this class should probably provide it since the plug-in removes the table border. The rest of the code is obtuse, but pretty straight forward. It starts by creating a new column in the table to accommodate the width of the scrollbar and avoid clipping of text in the rightmost column. The width of the columns is explicitly set in the header elements to force the size of the table to be fixed and to provide the same sizing when the THEAD section is moved to a new copied table later. The table wrapper div is created, formatted and the table is moved into it. The new wrapper div is cloned for the header wrapper and configured. Finally the actual table is cloned and cleared of all elements. The original table's THEAD section is then moved into the new table. At last the new table is added to the header <div>, and the header <div> is inserted before the table wrapper <div>. I'm always amazed how easy jQuery makes it to do this sort of re-arranging, and given of what's happening the amount of code is rather small. Disclaimer: Your mileage may vary A word of warning: I make no guarantees about the code above. It's a first cut and I provided this here mainly to demonstrate the concepts of decomposing and reassembling an HTML layout :-) which jQuery makes so nice and easy. I tested this component against the typical scenarios we plan on using it for which are tables that use a few well known styles (or no styling at all). I suspect if you have complex styling on your <table> tag that things might not go so well. If you plan on using this plug-in you might want to minimize your styling of the table tag and defer any border formatting using the class passed in via the cssClass parameter, which ends up on the two wrapper div's that wrap the header and body rows. There's also no explicit support for footers. I rarely if ever use footers (when not using paging that is), so I didn't feel the need to add footer support. However, if you need that it's not difficult to add - the logic is the same as adding the header. The plug-in relies on a well-formatted table that has THEAD and TBODY sections along with TH tags in the header. Note that ASP.NET WebForm DataGrids and GridViews by default do not generate well-formatted table HTML. You can look at my Adding proper THEAD sections to a GridView post for more info on how to get a GridView to render properly. The plug-in has no dependencies other than jQuery. Even with the limitations in mind I hope this might be useful to some of you. I know I've already identified a number of places in my own existing applications where I will be plugging this in almost immediately. Resources Download Sample and Plug-in code Latest version in the West Wind Web & AJAX Toolkit Repository © Rick Strahl, West Wind Technologies, 2005-2011Posted in jQuery  HTML  ASP.NET  

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  • jQuery jqGrid TreeGrid not functionining properly

    - by Raul Agrait
    Hello. I am having trouble constructing a jqGrid TreeGrid using local data. This method works just fine as a regular grid if you comment out the treeGrid and ExpandColumn attributes, but once you add those to try to make it a tree grid, it doesn't create the tree grid, and it no longer sorts properly. jQuery(function(){ var gridOptions = { datatype: "local", height: 250, colNames: ['Name', 'Type', 'Last Modified On', 'Last Modified By'], colModel: [{name: 'name', index: 'name', width: 200, sorttype: 'text'}, {name: 'type', index: 'type', width: 200, sorttype: 'text'}, {name: 'modifiedon', index: 'modifiedon', width: 200, sorttype: 'date'}, {name: 'modifiedby', index: 'modifiedby', width: 200, sorttype: 'text'}], treeGrid: true, ExpandColumn: 'name', caption: "My Grid" }; jQuery("#treeGrid").jqGrid(gridOptions); var gridData = [ {name: "My File", type: "My File Type", modifiedon: "03/10/2010", modifiedby"Strong Sad", lft: "1", rgt: "8", level: "0"}, {name: "One of Everything", type: "Word Document", modifiedon: "02/12/2009", modifiedby: "Strong Bad", lft: "2", rgt: "5", level: "0"}, {name: "My Presentation", type: "PowerPoint", modifiedon: "01/23/2009", modifiedby: "The Cheat", lft: "3", rgt: "4", level: "0"} ]; for (var i = 0; i < gridData.length; i++) { jQuery("#treeGrid").jqGrid('addRowData', i + 1, gridData[i]); } });

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  • Slimbox 2 Plugin, jQuery Flickr, and IE8

    - by Nick H.
    Hello, I am currently developing a site that I make use of two jQuery plugins: Flickr jquery plugin (http://code.google.com/p/jquery-flickr/) Slimbox (http://code.google.com/p/slimbox/) The first plugin is used to pull in flickr photos from a specific account. These photos are displayed as thumbnails on the page. I am then using the second plugin to display larger views of these images. Because the flickr photos are fetched when the page loads, I am calling the Slimbox 2 function like this: $(document).ready(function() { $("#Flickr").flickr(); //Call Flickr plugin $(window).bind('load', function() { $("#Flickr a").slimbox();//Call Slimbox2 }); }); On first testing this seemed to have worked perfectly. I tested multiple versions of FireFox, IE7, IE6, and Safari. Everything is great. However, the Slimbox lightbox effest does not work in IE8. However, if I put IE8 into compatibility mode, everything works as expected. I would like to avoid forcing compatibility mode. There are no javascript errors and I am at a loss for testing. Here is a link to a sample: http://www.njhall.com/JRMcCourt-Builders/index.html#ourwork Any advice would be greatly appreciated. Thanks Nick

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  • Why isn't jQuery automatically appending the JSONP callback?

    - by Aseem Kishore
    The $.getJSON() documentation states: If the specified URL is on a remote server, the request is treated as JSONP instead. See the discussion of the jsonp data type in $.ajax() for more details. The $.ajax() documentation for the jsonp data type states (emphasis mine): Loads in a JSON block using JSONP. Will add an extra "?callback=?" to the end of your URL to specify the callback. So it seems that if I call $.getJSON() with a cross-domain URL, the extra "callback=?" parameter should automatically get added. (Other parts of the documentation support this interpretation.) However, I'm not seeing that behavior. If I don't add the "callback=?" explicitly, jQuery incorrectly makes an XMLHttpRequest (which returns null data since I can't read the response cross-domain). If I do add it explicitly, jQuery correctly makes a <script> request. Here's an example: var URL = "http://www.geonames.org/postalCodeLookupJSON" + "?postalcode=10504&country=US"; function alertResponse(data, status) { alert("data: " + data + ", status: " + status); } $.getJSON(URL, alertResponse); // alerts "data: null, status: success" $.getJSON(URL + "&callback=?", alertResponse); // alerts "data: [object Object], status: undefined" So what's going on? Am I misunderstanding the documentation or forgetting something? It goes without saying that this isn't a huge deal, but I'm creating a web API and I purposely set the callback parameter to "callback" in the hopes of tailoring it nicely to jQuery usage. Thanks!

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  • jquery selector logical AND?

    - by taber
    In jQuery I'm trying to select only mount nodes where a and b's text values are 64 and "test" accordingly. I'd also like to fallback to 32 if no 64 and "test" exist. What I'm seeing with the code below though, is that the 32 mount is being returned instead of the 64. The XML: <thingses <thing <a32</a <-- note, a here is 32 and not 64 -- <other...</other <mountsample 1</mount <btest</b </thing <thing <a64</a <other...</other <mountsample 2</mount <btest</b </thing <thing <a64</a <other...</other <mountsample 3</mount <bunrelated</b </thing <thing <a128</a <other...</other <mountsample 4</mount <bunrelated</b </thing </thingses And unfortunately I don't have control over the XML as it comes from somewhere else. What I'm doing now is: var ret_val = ''; $data.find('thingses thing').each(function(i, node) { var $node = $(node), found_node = $node.find('b:first:is(test), a:first:is(64)').end().find('mount:first').text(); if(found_node) { ret_val = found_node; return; } found_node = $node.find('b:first:is(test), a:first:is(32)').end().find('mount:first').text(); if(found_node) { ret_val = found_node; return; } ret_val = 'not found'; }); // expected result is "sample 2", but if sample 2's parent "thing" was missing, the result would be "sample 1" alert(ret_val); For my ":is" selector I'm using: if(jQuery){ jQuery.expr[":"].is = function(obj, index, meta, stack){ return (obj.textContent || obj.innerText || $(obj).text() || "").toLowerCase() == meta[3].toLowerCase(); }; } There has to be a better way than how I'm doing it. I wish I could replace the "," with "AND" or something. :) Any help would be much appreciated. thanks!

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  • jQuery ajax call doesn't seem to do anything at all

    - by icemanind
    I am having a problem with making an ajax call in jQuery. Having done this a million times, I know I am missing something really silly here. Here is my javascript code for making the ajax call: function editEmployee(id) { $('#<%= imgNewEmployeeWait.ClientID %>').hide(); $('#divAddNewEmployeeDialog input[type=text]').val(''); $('#divAddNewEmployeeDialog select option:first-child').attr("selected", "selected"); $('#divAddNewEmployeeDialog').dialog('open'); $('#createEditEmployeeId').text(id); var inputEmp = {}; inputEmp.id = id; var jsonInputEmp = JSON.stringify(inputEmp); debugger; alert('Before Ajax Call!'); $.ajax({ type: "POST", url: "Configuration.aspx/GetEmployee", data: jsonInputEmp, contentType: "application/json; charset=utf-8", dataType: "json", success: function (msg) { alert('success'); }, error: function (msg) { alert('failure'); } }); } Here is my CS code that is trying to be called: [WebMethod] public static string GetEmployee(int id) { var employee = new Employee(id); return Newtonsoft.Json.JsonConvert.SerializeObject(employee, Newtonsoft.Json.Formatting.Indented); } When I try to run this, I do get the alert that says Before Ajax Call!. However, I never get an alert back that says success or an alert that says failure. I did go into my CS code and put a breakpoint on the GetEmployee method. The breakpoint did hit, so I know jQuery is successfully calling the method. I stepped through the method and it executed just fine with no errors. I can only assume the error is happening when the jQuery ajax call is returning from the call. Also, I looked in my event logs just to make sure there wasn't an ASPX error occurring. There is no error in the logs. I also looked at the console. There are no script errors. Anyone have any ideas what I am missing here? `

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  • jQuery autocomplete for dynamically created inputs

    - by Jamatu
    Hi all! I'm having an issue using jQuery autocomplete with dynamically created inputs (again created with jQuery). I can't get autocomplete to bind to the new inputs. Autocomplete $("#description").autocomplete({ source: function(request, response) { $.ajax({ url: "../../works_search", dataType: "json", type: "post", data: { maxRows: 15, term: request.term }, success: function(data) { response($.map(data.works, function(item) { return { label: item.description, value: item.description } })) } }) }, minLength: 2, }); New table row with inputs var i = 1; var $table = $("#works"); var $tableBody = $("tbody",$table); $('a#add').click(function() { var newtr = $('<tr class="jobs"><td><input type="text" name="item[' + i + '][quantity]" /></td><td><input type="text" id="description" name="item[' + i + '][works_description]" /></td></tr>'); $tableBody.append(newtr); i++; }); I'm aware that the problem is due to the content being created after the page has been loaded but I can't figure out how to get around it. I've read several related questions and come across the jQuery live method but I'm still in a jam! Any advice?

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