components

问题 I want to find out the date of the first week of a mouth in a year: NSCalendar *calendar = [NSCalendar currentCalendar]; NSDateComponents *components = [[NSDateComponents alloc] init]; [components setYear:2013]; [components setMonth:1]; [components setWeekOfMonth:1]; [components setWeekday:1]; NSDate *newDate = [calendar dateFromComponents:components]; NSLog(@"%@",newDate); What I get is: 2012-12-29 23:00:00 +0000 And when I compare to my mac calendar what I need to get is: 2012-12-31 23:00

问题 Given this really simple Wicket component: public class ProductImage extends WebComponent { public ProductImage(String id, Product p) { super(id, new Model(p)); add(new AttributeModifier("src", true, new Model(p.getImage()))); } } How to unit test it using WicketTester? Do I need a page? 回答1: I haven't actually done that (I've only tested panels), but startComponent() seems to be the way to do it. Something like this: Product product = new Product(/* initialize product here */); ProductImage

问题 I'm building a small reference application to see how to dynamically inject components in one component to view the content on the page. I'm getting an error that points to the ViewContainerRef object. This is the component that should display the injected component's content in the view, but it's throwing an error: Here is the StatsComponent that is throwing the error: export class StatsComponent implements AfterViewInit, OnDestroy { @Input() dynComp: DynamicComponent; @ViewChild

问题 For an Android application we must add a PDF viewer. We can't use the PDF reader install on the platform because we want to make some animations for page switch and we want that the PDF reading is integrate correctly in our application. So I search a component who make that in lgpl or a component that we can buy to integrate in our API and without loose a lot of time. Thanks in advance, 回答1: I have the similar need few days back and I went for iText PDF for Android. I used that to generate

问题 I have been away from C++ for a couple of years now doing AS3/Flex work. I have gotten used to being able to create a component and place it in design mode with very little fuss and I am struggling to get my head around the C++ Builder way of doing the same thing. I have written many components for C++ Builder in the past, but none of them have been visual. What I would like to do now is create a component for customer search and another for order processing because I want to be able to

问题 Is there any ready-to-use component for JSF that allows to chose the Date + the Time of an event? All components I know only allow for date. adding time manually is tedious. 回答1: The RichFaces calendar component allow you to choose both date and time. You can test it here. After choosing a date, it allows you to choose the time. Is it what you are looking for? 来源： https://stackoverflow.com/questions/625398/datetime-picker-for-jsf

问题 (a) What cases should you var scope variables and (b) what cases should you not var scope in a ColdFusion components? 回答1: You should var scope your variables when you're implementing a function inside a CFC that is shared across multiple requests (i.e. Singleton, Service CFC's in Application scope) You don't need to (yet still highly recommended to) var scope your variables if the CFC is instantiated every time, AND your method is not calling another method in the same CFC that may access

问题 I'm working on an app in Vue.js using Single File Components and Vue Router. I have a Search component where I need to execute a method to re-populate search results each time a user visits the route. The method executes correctly the first time the route is visited because of the "create" hook: created: function() { this.initializeSearch(); }, However, when the user leaves the route (to register or log into the app for instance), and returns to the Search page, I can't seem to find a way to

问题 So I have to class components: Class1: has a clickbutton Class2: has a method calling my api Basically, what I want is to call a method that sets and edits states inside one class from another class. But I keep failing. Example: Class1.js export class Class1 extends Component { render() { return ( <div onClick={must call Class2Method}></div> ) } } Class2.js export class Class2 extends Component { Class2Method(){ Here I call my API, I set & call states, ... } render { return ( <Class1 /> Here

问题 I'm using React Router 4. When I render component with render parameter componentWillReceiveProps() it doesn't fire the fist time, so I need to click twice to sent props to the component. I render like this: const CartRoute = (props) => (<Cart itemsInCart = {this.state.itemsInCart} deleteItemFromCart = {this.deleteItemFromCart} {...props} />); ..... <Switch> ..... <Route path="/cart" render={CartRoute} /> </Switch> Without Router (when all components are on the same page) it works ok. Here is