components

I'm trying to create my own class object and use it to store various data types for my application, this all works fine when using Published Properties, I can stream these to disk and back with no problems. But I need to stream some Arrays of both integer and strings data types as well. I understand that Arrays, amongst other data types can't be published properties because Delphi doesn't know how to stream them, I was led to believe you need to use DefineProperties to accomplish this, I've created a test Array of String as a Public property, I can read and write to it just fine, however I

I've come across some code that's throwing an exception (EIntfCasterror Cast not supported) when it passes nil to a constructor expecting a TComponent, like so: obj := SomeClass.Create(nil); The unit this is in does not contain a form and even TForm requires a TComponent be passed to it when you call its constructor. What should I pass in place of nil if anything exists or is there a way to get it to accept nil. Thank you. Also, I don't have the source code which calls the method this is in, or I would just have it pass the form it has access to. EDIT: Fixed the code example. EDIT2: Fixed the

Right now, I'm trying to make a website that shows recent news posts which is supplied my NodeJS API. I've tried the following: HTML <div id="news" class="media" v-for="item in posts"> <div> <h4 class="media-heading">{{item.title}}</h4> <p>{{item.msg}}</p> </div> </div> Javascript const news = new Vue({ el: '#news', data: { posts: [ {title: 'My First News post', msg: 'This is your fist news!'}, {title: 'Cakes are great food', msg: 'Yummy Yummy Yummy'}, {title: 'How to learnVueJS', msg: 'Start Learning!'}, ] } }) Apparently, the above didn't work because Vue can't render multiple root elements.

for a students projects we are working with Pentaho CDE to create a dashboard. At first it works fine, but now we are hanging at the point adding more than one Select Component. We inserted the Parameters of the Select Components to the SQL-Queries in the Where statement but now we have the problem, that it is not possible to select all elements in one select component and only one in the others. The sample space is getting smaller and smaller the more parameters we add because we can't find out how to select all option in one select component and send this all to the query. Is it possible in

I'm writing a MathQuiz for my pupils including JLatexMath for rendering and jinput for the buzzers. The problem is, that sometimes (like every fourth time) when I start the program, none of the components are visible. They appear after resizing the JFrame. First I was thinking of Bugs in the jinput or jlatexMath libraries, but I do get the same Error even with this minimal Code: public class Shell extends JFrame{ private JButton button1; private JButton button2; private Formula formula; public Shell() { super("blaBla"); this.setSize(800, 600); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

I have tried to insert PaginationRecallComponent ( http://bakery.cakephp.org/articles/Zaphod/2012/03/27/paginationrecall_for_cakephp_2_x ), in App -> Controller -> Component -> PaginationRecallComponent.php UserController: public $components = array('PaginationRecall'); Why I received the following error: Strict (2048): Declaration of PaginationRecallComponent::initialize() should be compatible with Component::initialize(Controller $controller) [APP/Controller/Component/PaginationRecallComponent.php, line 46] Code Context App::load() - CORE/Cake/Core/App.php, line 567 App::load() - CORE/Cake