components | 易学教程

Angular 2 nested forms with child components and validation

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问题 I'm trying achieve a nested form with validation in Angular 2, I've seen posts and followed the documentation but I'm really struggling, hope you can point me in the right direction. What I am trying to achieve is having a validated form with multiple children components. These children components are a bit complex, some of them have more children components, but for the sake of the question I think we can attack the problem having a parent and a children. What am I trying to accomplish

Include another QML file from a QML file

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问题 There's another question on Stackoverflow about this matter but I don't find the accepted solution possible. So I ask again because the old question is out of attention. The situation is this way. I have application screens defined by 'main.qml', 'feature1.qml', 'feature2.qml'. These screens share the same toolbar below title bar. The toolbar has multiple items so copy-paste the QML code is like crazy. This question: QML file include - or one monolithic file (structure QML code)? says it's

Is it possible to tell Visual Studio not to treat a source file as a “component”? [duplicate]

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Possible Duplicate: Is there an attribute I can add to a class so it will be edited as code, not in the designer? Class with System.ComponentModel.Component on their inheritance path are automatically treated as "components" within Visual Studio (2008), triggering a different icon for the source file: While the icon does not really matter, the changed double click behavior is really annoying: instead of opening the source code in the text editor, Visual Studio now shows a screen encouraging me to add components to my class by dragging them "from the Toolbox". I do not want to do that! I am

In a software project, how would you differentiate a Component from a Module? [closed]

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问题 Closed . This question is opinion-based. It is not currently accepting answers. Want to improve this question? Update the question so it can be answered with facts and citations by editing this post. Closed 2 years ago . In a software, how would you differentiate a Component from a Module? 回答1: I would say that the answer depends on who you ask. I think of the difference as being one of granularity and role. A software component to my understanding is a self-contained entity with a well

ExtJS: Component VS Element VS other

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问题 I've been working with ExtJS for a good few months now, but still don't have a perfectly clear map of what's going on behind the scenes there. I'm just talking about the building blocks of the framework and their most basic functionality. Ext.Component Ext.Element DOM.Element DOM.Node (?) CompositeElement (?) Whatever else (?) For each of the abovementioned I would like to know: How to select : by ID, by class, via parent, find (OR children OR query OR select? WTF), siblings, ComponentQuery,

Delphi components to use with SQlite

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问题 What components can I use to use SQlite database with Delphi 6? 回答1: Try Zeos Library at http://zeos.firmos.at/portal.php. It works well with SQLite and others. It is free and you get the source code too. 回答2: My Answer is AnyDAC in this case. We here currently use it and it works. Especially when you think that you get more than just what the database can do. http://www.da-soft.com/anydac/ 回答3: I'm using DISQLite3 in FeedDemon and recommend it highly. 回答4: I have successfully used ASqlite

How to get the current MavenSession or MavenExecutionRequest from a Plexus Component

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I created a Plexus component to house common logic for several Mojos I want to create. I have been able to pass information like localRepository and project from the Mojo (and test cases). I was wondering if there is a way to get the MavenSession or MavenExecutionRequest from within the component without having to pass them as parameters from a Mojo. I know my component will be running from a Maven Mojo. I'm using Maven 2 in this instance. I don't believe there is, nor would I think it's a good idea. From my understanding, what you're aiming to achieve is have a commons-like component, that

How can I create a pagination component in Angular 4? [closed]

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Closed . This question needs details or clarity. It is not currently accepting answers. Learn more . Want to improve this question? Add details and clarify the problem by editing this post . I have a API endpoint like /list/students?page=5&rows=10 with a pagination parameters page and size . I want to create a angular2 pagination component. Input parameters will be page size In addition, I want to go to specific page and size with arrow buttons. How can I implement this component ? You can crate a paging component using my below codes and services app.component.html <paging-component

Component to view and annotate PDF documents [closed]

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Closed. This question is off-topic. It is not currently accepting answers. Learn more . Want to improve this question? Update the question so it's on-topic for Stack Overflow. Can anyone recommend a good Windows form component for displaying PDF documents and allowing users to add real annotation (by which I mean identical to that created by Adobe Reader). Update: I've tried the AxAcroPDF component which Abobe installs alongside Reader, but this doesn't support annotation. I basically want AxAcroPDF combined with Reader's "Comment & Markup Toolbar". It seems that the Foxit SDK ActiveX supports

What is a good dvd burning component for Windows or .Net?

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I'd like to add dvd burning functionality to my .Net app (running on Windows Server 2003), are there any good components available? I've used the NeroCOM sdk that used to come with Nero but they no longer support the sdk in the latest versions of Nero. I learned that Microsoft has created an IMAPI2 upgrade for Windows XP/2003 and there is an example project at CodeProject but not having used it myself I can't say how easy/reliable it is to use. I'm not really worried about burning audio/video to DVD as this is for file backup purposes only. I've used the code from the codeproject article and