elements

问题 I want to copy certain elements from one PDF to another using iTextSharp. I want to read one PDF, read text elements from that and correct them and create a new PDF using the updated text elements and all the images etc. from the first PDF. Please help me how this can be achieved. 回答1: This task is very complex. I wrote a program to do this for a large greeting card maker. First you have to locate the text and calculate the glyph bounding boxes. Next you have to modify the contents stream to

问题 I know this type of question has been asked a number of times. I have spent several hours reading and trying the offered solutions - but none appear to work for my situation. I need to send a SOAP request to an API that can contain an element that repeats like so: <operationNumbers> <operationNumber>1234</operationNumber> <operationNumber>1235</operationNumber> <operationNumber>1236</operationNumber> <operationNumber>1237</operationNumber> </operationNumbers> I did read that perhaps I could

问题 I am trying to add new rows in my table, and save them into DB. First, I use .append() to append rows on the table: $("#tablename").append("<tr id='newRow'><td>newly added row</td></tr>"); The appending function works fine. My page displays the correct result. However, I am unable to select them with $("#newRow").each(function () { alert "it never reaches here!"; }); I am guessing it is because the elements are added after the DOM is loaded. Can anyone please tell me how I can iterate through

问题 I have an unordered list exported by a CMS and need to identify <li> elements that have the class .sub and wrap them in a <ul> . I have tried the wrapAll() method but that finds all <li class="sub"> elements and wraps them in one <ul> . I need it to maintain seperate groupings. The exported code is as follows: <ul> <li></li> <li></li> <li></li> <li class="sub"></li> <li class="sub"></li> <li class="sub"></li> <li></li> <li></li> <li class="sub"></li> <li class="sub"></li> <li class="sub"></li

问题 When i hover a "li a" can i then affect another element in plain CSS? becuase I'm trying to make a box slide in, as a background element, when hovering my link. Exactly like this sites navigation, just instead of when activated, it works with hover http://www.zindhai.com this is my code nav ul li a:hover{ color: #C3E1FF; font-weight: 700; } nav ul li span:hover{ -webkit-transform:translate(0px, 0px); -webkit-transition:all 0.5s ease-out; transition:all 0.5s ease-out; } nav ul li span{ height

问题 How can i write this in one line. $('#id').whatever(); $('#id1').whatever(); $('.class').whatever(); 回答1: As with CSS, you can use commas to join together multiple distinct selectors: $('#id, #id1, .class').whatever(); 来源： https://stackoverflow.com/questions/4703325/jquery-referencing-multiple-elements-in-one-line

问题 I have several divs: <div id="div-1"></div> <div id="div-2"></div> <div id="div-3"></div> <div id="div-4"></div> How can I hide them all with jquery. I used $('#div').hide(); and did not work. 回答1: You are using an id in your selector. Simply use: $('div').hide(); However that will hide literally all divs. How about you hide only divs that have an id in the form of div-x ? $('div[id^="div-"]').hide(); This will only hide the divs you mentioned without hiding other divs (which might be

问题 I have been working on trying to figure out this algorithm for about 6 hours now and can't seem to come up with a solution. I am trying to count the occurrences of elements inside an array and may two more separate arrays. One for the unique instances, and one for how many times these instances occurs. I found some other thinks on here about array lists and hashMaps, but I am only able to use arrays. For example, I have this array (already sorted): {cats, cats, cats, dog, dog, fish} I am

问题 Perl6 documentation indicated that when comparing two items in a set, === is used. This is quote from perl6 documentation: Objects/values of any type are allowed as set elements. Within a Set, every element is guaranteed to be unique (in the sense that no two elements would compare positively with the === operator) I am wondering if it is possible to use a user-defined function instead of === ? E.g., How can I use ~~ instead of === in determining whether 2 elements in a set are "equal". The

问题 As the question said, i need the list of events bound to a specific element. I mean events like click, mouseover etc bound to that element at the loading of the dom. (Stupid) example: $("#element").click(function() { //stuff }); $("#element").mouseover(function() { //stuff }); $("#element").focus(function() { //stuff }); Result: click, mouseover, focus 回答1: Every event is added to an array. This array can be accessed using the jQuery data method: $("#element").data('events') To log all events