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How to serialize a TimeSpan to XML

... this: [XmlIgnore] public TimeSpan TimeSinceLastEvent { get { return m_TimeSinceLastEvent; } set { m_TimeSinceLastEvent = value; } } // XmlSerializer does not support TimeSpan, so use this property for // serialization instead. [Browsable(false)] [XmlElement(DataType="duration", ElementNa...
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Django filter versus get for single object?

... get() is provided specifically for this case. Use it. Option 2 is almost precisely how the get() method is actually implemented in Django, so there should be no "performance" difference (and the fact that you're thinking about it indicates you're vio...
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惨不忍睹:说一说你最穷的时候是什么样子 - 创意 - 清泛网 - 专注C/C++及内核技术

...道   @EZ汽车人:在北京一个月吃饭花200   @贰拾壹-_- :拉屎拉一半,怕饿得快。。。。。。   类型二:不敢出门+避免社交型   @螺丝脱落司机:开启免打扰模式,然后各种宅。   @猪脚L:穷到家里待了一个星...
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What's the difference between Git Revert, Checkout and Reset?

...the history. git reset This command is a little more complicated. It actually does a couple of different things depending on how it is invoked. It modifies the index (the so-called "staging area"). Or it changes which commit a branch head is currently pointing at. This command may alter existing h...
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“Auto Layout still required after executing -layoutSubviews” with UITableViewCell subclass

... I encountered the same problem while manually adding constraints in code. In code, I was doing the following: { [self setTranslatesAutoresizingMaskIntoConstraints:YES]; [self addSubview:someView]; [self addSubview:someOtherView]; [self addConstraint...
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How do I sort a vector of pairs based on the second element of the pair?

...response to your edits to your question, here's some thoughts ... if you really wanna be creative and be able to reuse this concept a lot, just make a template: template <class T1, class T2, class Pred = std::less<T2> > struct sort_pair_second { bool operator()(const std::pair<T1...
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When is -XAllowAmbiguousTypes appropriate?

... should be able to follow functional dependencies in order to disambiguate all the other types used in the context, namely sup and fi. And indeed, the f -> internal functional dependency in SyntacticN uses our f to disambiguate our fi, and thereafter the f -> sig sym functional dependency in A...
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Html5 data-* with asp.net mvc TextboxFor html attributes

... You could use underscore (_) and the helper is intelligent enough to do the rest: @Html.TextBoxFor( model => model.Country.CountryName, new { data_url = Url.Action("CountryContains", "Geo") } ) And for those who want to achieve the same...
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Python Flask, how to set content type

... Try like this: from flask import Response @app.route('/ajax_ddl') def ajax_ddl(): xml = 'foo' return Response(xml, mimetype='text/xml') The actual Content-Type is based on the mimetype parameter and the charset (defaults to UTF-8). Response (and request) objects are docume...
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Why does int i = 1024 * 1024 * 1024 * 1024 compile without error?

... @WouterLievens, overflow is normally an "unusual" condition, if not an outright error condition. It is a result of finite-precision math, which most people are not intuitively expecting to happen when they do math. In some cases, like -1 + 1, it's harmless;...