Search Results

Search found 7443 results on 298 pages for 'elements'.

Page 181/298 | < Previous Page | 177 178 179 180 181 182 183 184 185 186 187 188  | Next Page >

• creating managed objects using code in xcode & core-data

  - by themadpeacock

  New to objective-c xcode and core-data so sorry for the remedial question. I have set up a very simple data model: Entity1 and Entity2, both contain a single attribute (String) and a one-to-many relationship with the other. I want to scan Entity1 and depending on the results of the scan create one or more Entity2 objects that link to Entity1. How can I do this? I don’t understand how I create Entity2 type objects in code and how I would define the relationship to the Entity1 object they are related to. I come from a SQL programming background where inserting elements into the Entity2 table with the ID of the related Entiry1 entry is easy. I can’t get my head around the xcode core-data abstraction and would appreciate any help.

  Read the article

• Accessing the feed/entry/id field of an ATOM 1.0 feed with the ROME library

  - by PartlyCloudy

  Hi, I feel a bit stupid asking this question, but I don't know how I can access the ID field of an entry when using ROME to parse an Atom feed. ROME provides it's own meta level of feeds/items, i.e. SyndFeed and SyndEntry. Being an abstraction over RSS and ATOM they only contain elements both formats support. Thus, there is no method to get an ID of an entry. There also exist low level packages for the distinct formats, and the Atom package contains com.sun.syndication.feed.atom.Entry, which provides getId(). However, I don't know how can I convert my SyndEntry into an Entry. I have not found a way to convert it. The (outdated) tutorials show a conversion, but that's only for output though. So how can I easily access the ID field? Thanks in advance.

  Read the article

• django internationlisation

  - by ha22109

  Hello I need to have multiple language support of my django admin application.I can create the messege files.But how can i change the text of my models.The heading ,fields etc .I m only able to change the static elements which are there in my template. here is example of my class class Mymodel(model.Models): id=models.IntegerField(primary_key=true) name=models.CharField(max_length=200) group=models.CharField(max_length=200) class Meta: managed=False verbose_name_plural='My admin' db_table='my_admin' one more question.In my home page it is showing my verbose name 'My admin' which i mentioned.But when i go to list page it shows me the class name 'mymodel'.Why so.Can i changed that to

  Read the article

• Using a Loader for a string of QML

  - by Robbert

  In Qt 5.3 I've been using the Loader QML element for loading screens. Now I'm trying to load a string of QML dynamically. Qt.createQmlObject enables me to do so, but I can't seem to get the Loader element to play along. Seems like Loader only takes a URL (QUrl) or component (QQmlComponent), but Qt.createQmlObject creates an object (QObject). I'm new to QML, but from my understanding components are reusable elements, similar to classes, and objects are the instances of those classes. I thus can't seem to wrap my head around why Loader wouldn't work with objects. How can I show a loading screen while (asynchronously) parsing and initializing a string of QML? Example QML code: Item { Rectangle {id: content} Loader {id: loader} Component.onCompleted: { var obj = Qt.createQmlObject('import QtQuick 2.3; Rectangle {}', content); loader.source = obj; // Throws error. } }

  Read the article

• merge sort recursion tree height

  - by Tony

  Hello! I am learning about recursion tree's and trying to figure out how the height of the tree is log b of n where n = 2 and one has 10 elements as input size. I am working with Merge sort. The number of times the split is done is the height of the tree as far as I understood, and the number of levels in the tree is height + 1. But if you take (for merge sort) log2 of 10 you get 1, where if you draw the tree you get at least 2 times that the recursion occurs. Where have I gone wrong? (I hope I am making sense here) NOTE: I am doing a self study, this is not homework!

  Read the article

• Lucene search taking TOOO long.

  - by Josh Handel

  I;m using Lucene.net (2.9.2.2) on a (currently) 70Gig index.. I can do a fairly complicated search and get all the document IDs back in 1 ~ 2 seconds.. But to actually load up all the hits (about 700 thousand in my test queries) takes 5+ minutes. We aren't using lucene for UI, this is a datastore between processes where we have hundreds of millions of pre-cached data elements, and the part I am working on exports a few specific fields from each found document. (ergo, pagination doesn't make since as this is an export between processes). My question is what is the best way to get all of the documents in a search result? currently I am using a custom collector that does a get on the document (with a MapFieldSelector) as its collecting.. I've also tried iterating through the list after the collector has finished.. but that was even worse. I'm open to ideas :-). Thanks in advance.

  Read the article

• [Web] Eventlistener for form input on iphone?

  - by ketenshi

  I'm playing around with jQTouch to create a web app on the iPhone. I'm using the scrolling extension to create the effect of a fixed toolbar on the top of the page while still able to scroll the rest of the page via a scrollable div. Everything works fine except for when a user pulls up the keyboard in order to fill in form elements in the scrollable div. The whole body is pushed to top and the ugly url bar is shown. Is there a way to prevent this?

  Read the article

• jQuery not replacing text in ReportViewer

  - by firedrawndagger

  I'm trying to replace text that I got back in the ReportViewer using jQuery. My div, wrapped in the table cell, display "empty" as text - which I plan on replacing with my own formatted text on the client side. I can use jQuery just fine to set a class on the div (which is inside a td element). Example: jQuery('div:contains("empty")').addClass('replacetext'); But for some reason I cannot do this: jQuery('div:contains("empty")').replaceWith('<div>Hello World</div>'); I tried this out on some other elements on the page and jQuery does work... but it seems like this issue is ReportViewer (I'm using 2008) specific.

  Read the article

• Jquery datePicker

  - by Shane

  I have slight issue with the jquery datepicker in that it displays ABOVE the target box. This is due to the way my page is set up. I found the issue with CSS in my page via firebug, unfortunately it conflicts with about 20 elements. Next I tried hooking into the "beforeShow event" which works but then after the event fires it just recalculates and puts it where ever it wants. beforeShow: function() { $('#ui-datepicker-div').show(); var offset = $('#ui-datepicker-div').offset(); $('#ui-datepicker-div').css({ top: (offset.top + 222) + 'px' }) } Does anyone else have any ideas how how I can reposition this? I just need to move it down by about 200 odd pixels.

  Read the article

• Get children count via HQL

  - by Thomas Lötzer

  Hi, I have a one-to-many mapping between a parent entity and child entities. Now I need to find the number of children associated with each parent for a list of parents. I am trying to do this with HQL but I am not sure how I can get the list of parents in there. Also, I don't know how I can return the entity itself and not just its ID. My current HQL query is: select new map(parent.id as parentId, count(*) as childCount) from Parent parent left join parent.children children group by parent.id but this only returns the ID and does not filter on specific parents. EDIT Based on Pascal's answer I have modified the query to select new map(parent as parent, count(elements(parent.children)) as childCount) from Parent parent group by parent That does work, but is prohibitively slow: 30 seconds instead of 400 ms on the same database.

  Read the article

• jQuery DOM element creation vs innerHTML

  - by Mohammad

  While having one of my questions answered, cletus mentioned that when creating elements in jQuery it's better to use direct DOM element creation, instead of innerHTML. I tried googling it but I wasn't able to find a good article with comparisons. I've provided this code bellow as an example and I was wondering if someone could help me rewrite it in direct DOM element creation form in hope that i would also learn the difference afterwards. var img = $(this); img.append('<p class="cap"><a href="'+img.parent().attr('href')+'">'+ img.attr('title')+'</p></a>'); Thanks so much.

  Read the article

• Objective C Array and Object Release

  - by david

  Hi, I have a newbie question regarding when to release the elements of a NSArray. See following pseudo code: NSMutalbeArray *2DArray = [[NSMutableArray alloc] initWithCapacity:10]; for (int i=0;i<10;i++) { NSMutableArray *array = [[MSMutableArray alloc] initWithCapacity:5]; for (int j=0;j<5;j++) { MyObject *obj = [[MyObject alloc] init]; [array addObject:obj]; [obj release]; } [2DArray addObject:array]; [array release]; } // use 2DArray to do something [2DArray release] My question here is, when I release 2DArray, do I need to explicitly release each of its element (array) first? Also, before I release the "array" object, do I need to release each of its element (MyObject) first? I am new to Objective C. Please help. thanks.

  Read the article

• Is perl's each function worth using?

  - by eugene y

  From perldoc -f each we read: There is a single iterator for each hash, shared by all each, keys, and values function calls in the program; it can be reset by reading all the elements from the hash, or by evaluating keys HASH or values HASH. The iterator is not reset when you leave the scope containing the each(), and this can lead to bugs: my %h = map { $_, 1 } qw(1 2 3); while (my $k = each %h) { print "1: $k\n"; last } while (my $k = each %h) { print "2: $k\n" } Output: 1: 1 2: 3 2: 2 What are the common workarounds for this behavior? And is it worth using each in general?

  Read the article

• Is perl's each function worth using?

  - by eugene y

  From perldoc -f each we read: There is a single iterator for each hash, shared by all each, keys, and values function calls in the program; it can be reset by reading all the elements from the hash, or by evaluating keys HASH or values HASH. The iterator is not reset when you leave the scope containing the each(), and this can lead to bugs: my %h = map { $_, 1 } qw(1 2 3); while (my $k = each %h) { print "1: $k\n"; last } while (my $k = each %h) { print "2: $k\n" } Output: 1: 1 2: 3 2: 2 What are the common workarounds for this behavior? And is it worth using each in general?

  Read the article

• Visual Studio: Design a UserControl class that derives from an abstract base class

  - by Marcel

  Hi All, I want to have an abstract base class for some of my custom UserControl's. The reason is obvious: they share some common properties and methods (a basic implementation of some elements of an interface actually), and I want to implement them only once. I have done this by defining my abstract base class: public abstract class ViewBase : UserControl, ISomeInterface Then I went to implement one of my views, as usual, with the designer: public partial class SpecialView : UserControl //all OK Up to here all is fine. Now I replace the derivation of my SpecialView class with the abstract base class: public partial class SpecialView : ViewBase //disrupts the designer Now, the designer in Visual Studio 2008 won't work anymore, stating: The designer must create an instance of type 'ViewBase' but it cannot because the type is declared as abstract. How can I circumvent this? I just do not want to have the same code copied for all those views. Info: there is a question question with virtual methods, instead of abstract classes, but there is no suitable solution for me.

  Read the article

• How can I get jQuery $('.class', context) to include context itself if it matches .class?

  - by Jake

  I want to be able to match against all elements in a given context including the context element itself. Here is the code I'm using currently, but it seems inefficient. Is there a better way? Note: I'm using jQ 1.3.2, but I'll upgrade soon so I'm interested in 1.4 solutions too. var context = $('#id'); var filters = '.class1, .class2'; // take context itself if it matches filters $(context).filter(filters) // add anything matching filters inside context .add($(filters, context)) Note: .add($(f,c)) works in jQ 1.3 as .add(f,c) in jQ 1.4

  Read the article

• Passing complex objects to javascript via IScriptControl

  - by Jeff Dege

  I'm playing around with a asp.net page that's using the IScriptControl interface to pass data from the code-behind to the custom javascript object running on the browser. I'm passing a number of properties via IScriptControl.GetScriptDescriptors(), and they're all working fine, except for one. That one is a class derived from System.Collections.Generic.Dictionary<. And even that one has been working for me, so long as the elements in the collection were scalars - ints, doubles, and strings. But when I tried to pass a member of a class, it showed up as a null object in the javascript. The class in question is marked [Serializable]. I changed it to a struct, and got the same behavior. It looks as if the serializer used in IScriptControl does a shallow copy. I need a deep copy. Any ideas?

  Read the article

• Rails "Load more..." instead of pagination.

  - by Joseph Silvashy

  I have a list of elements, and I've been using will_paginate up until now, but I'd like to have something like "load more..." at the bottom of the list. Is there an easy way to accomplish this using will_paginate or do I need to resort to some other method here? From what I know this is a better route anyhow because then I don't need a SQL count of the records. And it really doesn't matter if there are like 9,847 pages, nobody would need the records beyond the first couple pages anyhow.

  Read the article

• Wrap all created li-elments after click

  - by user317919

  $('input[name="iplus"]').click(function() { $("#billsumary").append("<li>Test</li>"); }); Hi, i append a li-elemnt on every click. Now I like to wrap all those created li-elements into an ol-element but not each created one but all of them together. sample html output: <div id='billsumary'> <ol> <li>Test</li> <li>Test</li> <li>Test</li> ... <li>Test</li> </ol> </div>

  Read the article

• CSS : overflow : auto will not work under FireFox 3.6.2

  - by Michael Mao

  Hello everyone: This is a CSS related question, I got one good answer from my previous question, which suggested to use some CSS code like overflow:auto together with a fixed height container. And here is my actual implementation : on uni server Please follow the instructions on screen and buy more than 4 kinds of tickets. If you are using IE8, Opera, Safari, Chrome, you would notice that the lower right corner of the page now has a vertical scroll bar, which scrolls the content inside it and prevent it from overflowing. That's what I want to have in this section. Now the problem is, this would not do in FireFox 3.6.2. Am I doing something not compliant to the CSS standard or FireFox has its own way of overflow control? You can inspect the elements on screen, and all controlling functions are done in one javascript using jQuery. All CSS code are kept in a separated file as well. According to the professor, FireFox would be the target browser, although the version was set to 2.0...

  Read the article

• Using CSS, how can I make overflow:visible; contents overlap adjacent <td> cells?

  - by Structure

  I have the following CSS style code for my table: td { overflow: hidden; white-space:nowrap; } td:hover { overflow: visible; } However, when I hover over a <td> element whos contents (text) are hidden, the result is that the contents become visible but are behind the content of the adjacent cell (right side). I do not think that z-index can be applied to table cell elements, so is there a CSS attribute that I can specify within my td:hover style which will make the content of my <td> tag overlap the content in adjacent cells?

  Read the article

• How to install python physics engine

  - by None

  I want a python physics engine that works on mac and makes it easy to simulate physics. I have VPython and it works fine, but it is not quite what I want. VPython just shows visual elements and all the physics is in formulas. I looked at the documentation for PyODE and it looked like more what I want. It allowed you to add forces to masses and have worlds and things like that. When I tried to install PyODE (I am using a Mac), it didn't work. One reason was that I didn't have pyrex (I do have Cython, so maybe there is some way to have it use that?), but the other was that I didn't have ode installed. I looked and realized that PyODE is dependent on ode. I tried to install ode but that didn't work. Is there some documentation or binary or something that makes it easy to install PyODE on a mac? Or is there a similar module?

  Read the article

• 3ds collada UV mapping problem in Papervision

  - by MonsieurOreilles

  Hi everyone, as I briefly explained in the title, my prblem concerns texturing a collada export in papervision. Basically I was exporting collada models from Cinema 4d with its uv map. I was able to see everything, but the texture was not displaying properly (hidden polygons). So I decided to try with 3dsMax. I used the same code to display the texture : var materials:MaterialsList = new MaterialsList(); var torusMaterial:BitmapFileMaterial = new BitmapFileMaterial("model/tex.png"); torusMaterial.precise = true; materials.addMaterial(torusMaterial, "ID1"); Again, I can see every elements, but this time my model uses only one pixel of my texture. So if I use a red texture and if I color only the pixel at the left bottom corner in green, all my model will be green. Any advice about how to properly wrap the texture around a 3ds export model ? Thank you.

  Read the article

• CSS strikethrough different color from text?

  - by gojomo

  The HTML elements del or strike, and the CSS text-decoration property with a value line-through, may all be used for a text strike-through effect. Examples: <del>del</del> ...gives: del <strike>strike</strike> ....gives: strike <span style='text-decoration:line-through'> text-decoration:line-through </span> ...will also look the same as: text-decoration:line-through However, the strikethrough line is typically the same color as the text. Can CSS be used to make the line a different color?

  Read the article

• Can I get the matched DOM string with PHP and DOMDocument?

  - by alex

  I've got my HTML inside of $html. dom = new DOMDocument(); $dom->loadHTML($html); $xpath = new DOMXPath($dom); $tags = $xpath->query('//div[@id="header"]'); foreach($tags as $tag) { var_dump($tag->nodeValue); // the innerHTML of that element var_dump($tag); // object(DOMElement)#3 (0) { } } Is there a way to get that node, or remove it? Basically, I'm parsing an existing website and need to remove elements from it. What method do I call to do that? Thanks

  Read the article

< Previous Page | 177 178 179 180 181 182 183 184 185 186 187 188  | Next Page >