大约有 18,400 项符合查询结果（耗时：0.0429秒） [XML]
How to query nested objects?
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Answering my own comment, it's best to avoid using dots completely in your keys. In my solution I completely ditched the domains being keys, and created a slice/array instead.
– Rens Tillmann
Jun 11 at 19:16
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Sorting dropdown alphabetically in AngularJS
...="f.name for f in friends | orderBy:'name'"></select>
See this fiddle for an example.
It's worth noting that if track by is being used it needs to appear after the orderBy filter, like this:
<select ng-model="selected" ng-options="f.name for f in friends | orderBy:'name' track by f.i...
Entity Framework select distinct name
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The way that @alliswell showed is completely valid, and there's another way! :)
var result = EFContext.TestAddresses
.GroupBy(ta => ta.Name)
.Select(ta => ta.Key);
I hope it'll be useful to someone.
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Understanding :source option of has_one/has_many through of Rails
...s_to :user
end
With this code, you can do something like Newsletter.find(id).users to get a list of the newsletter's subscribers. But if you want to be clearer and be able to type Newsletter.find(id).subscribers instead, you must change the Newsletter class to this:
class Newsletter
has_many :s...
How to change field name in Django REST Framework
...already exists. One should be able to mention the foreign instance via its id.
– stelios
Oct 12 '16 at 20:25
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Best way to define private methods for a class in Objective-C
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There isn't, as others have already said, such a thing as a private method in Objective-C. However, starting in Objective-C 2.0 (meaning Mac OS X Leopard, iPhone OS 2.0, and later) you can create a category with an empty name (i.e. @interface MyClass ()) called C...
How to insert spaces/tabs in text using HTML/CSS
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In cases wherein the width/height of the space is beyond &nbsp; I usually use:
For horizontal spacer:
<span style="display:inline-block; width: YOURWIDTH;"></span>
For vertical spacer:
<span style="display:block; height: YO...
LINQ - Left Join, Group By, and Count
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from p in context.ParentTable
join c in context.ChildTable on p.ParentId equals c.ChildParentId into j1
from j2 in j1.DefaultIfEmpty()
group j2 by p.ParentId into grouped
select new { ParentId = grouped.Key, Count = grouped.Count(t=>t.ChildId != null) }
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How to change the color of an svg element?
...{
display: none;
}
.no-svg .my-svg-alternate {
display: block;
width: 100px;
height: 100px;
background-image: url(image.png);
}
<svg width="96px" height="96px" viewBox="0 0 512 512" enable-background="new 0 0 512 512" xml:space="preserve">
<path id="time-3-icon" d="M256,...
How do I add an icon to a mingw-gcc compiled executable?
... to create a RC file with the below content. Here we'll name it as my.rc.
id ICON "path/to/my.ico"
The id mentioned in the above command can be pretty much anything. It doesn't matter unless you want to refer to it in your code. Then run windres as follows:
windres my.rc -O coff -o my.res
Then...