大约有 40,000 项符合查询结果（耗时：0.1316秒） [XML]
Get generic type of class at runtime
...is is the usual (type-safe) workaround pattern:
public class GenericClass<T> {
private final Class<T> type;
public GenericClass(Class<T> type) {
this.type = type;
}
public Class<T> getMyType() {
return this.type;
}
}
...
How do I get a TextBox to only accept numeric input in WPF?
...
Add a preview text input event. Like so: <TextBox PreviewTextInput="PreviewTextInput" />.
Then inside that set the e.Handled if the text isn't allowed. e.Handled = !IsTextAllowed(e.Text);
I use a simple regex in IsTextAllowed method to see if I should allow w...
When is JavaScript's eval() not evil?
I'm writing some JavaScript code to parse user-entered functions (for spreadsheet-like functionality). Having parsed the formula I could convert it into JavaScript and run eval() on it to yield the result.
...
Access index of the parent ng-repeat from child ng-repeat
...he issue was something else in my actual code. Still, I know it was difficult to find examples of this so I'm answering it in case someone else is looking.
<div ng-repeat="f in foos">
<div>
<div ng-repeat="b in foos.bars">
<a ng-click="addSomething($parent.$index)"&...
Remove padding from columns in Bootstrap 3
...e that a column would introduce with negative left & right margins.
<div class="container">
<div class="row">
<h2>OntoExplorer<span style="color:#b92429">.</span></h2>
<div class="col-md-4 nopadding">
<div class="wid...
How to align content of a div to the bottom
...0;
}
#header, #header * {
background: rgba(40, 40, 100, 0.25);
}
<div id="header">
<h1>Title</h1>
<div id="header-content">Some content</div>
</div>
But you may run into issues with that. When I tried it I had problems with dropdown menus a...
What permission do I need to access Internet from an Android application?
... INTERNET permission to your manifest file.
You have to add this line:
<uses-permission android:name="android.permission.INTERNET" />
outside the application tag in your AndroidManifest.xml
share
|
...
Creating virtual directories in IIS express
...tion is managed by applicationhost.config.
You can find it in
Users\<username>\Documents\IISExpress\config folder.
Inside you can find the sites section that hold a section for each IIS Express configured site.
Add (or modify) a site section like this:
<site name="WebSiteWithVirtu...
Why do std::shared_ptr work
...(which can be given as argument to the constructor but if not present defaults to calling delete). When the shared_ptr is destroyed, it calls that stored function and that will call the deleter.
A simple sketch of the type erasure that is going on simplified with std::function, and avoiding all ref...
Collection versus List what should you use on your interfaces?
...
To answer the "why" part of the question as to why not List<T>, The reasons are future-proofing and API simplicity.
Future-proofing
List<T> is not designed to be easily extensible by subclassing it; it is designed to be fast for internal implementations. You'll notice th...