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Nullable type issue with ?: Conditional Operator

...looking at the variable to which it is assigned, but by looking at the operands instead. It finds <null> and DateTime and instead of finding the common ancestor type, it just tries to find a conversion between each other. (Extra bit: C# recognizes a <null> type, i.e. the type of every nu...
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How to TryParse for Enum value?

...erything. If you are using bitfield enums (i.e. flags), you also have to handle a string like "MyEnum.Val1|MyEnum.Val2" which is a combination of two enum values. If you just call Enum.IsDefined with this string, it will return false, even though Enum.Parse handles it correctly. Update As mention...
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How can sbt pull dependency artifacts from git?

I've heard (and I know I've seen examples too, if only I can remember where) that sbt can obtain dependencies from a git repo. ...
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Convert a date format in PHP

... in SQL); however I don't know how the date function requires a timestamp, and I can't get a timestamp from this string. 17...
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How to have click event ONLY fire on parent DIV, not children?

I have a DIV with a classed foobar , and a few DIVs inside that DIV that are unclassed, but I suppose they are inheriting the foobar class: ...
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How do I get user IP address in django?

...tem (e.g., in the case of Heroku: Get client's real IP address on Heroku) And then just pass the request as argument to it; get_client_ip(request) share | improve this answer | ...
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There is no ListBox.SelectionMode=“None”, is there another way to disable selection in a listbox?

...ox, you could use ItemsControl instead. It places items in the ItemsPanel and doesn't have the concept of selection. <ItemsControl ItemsSource="{Binding MyItems}" /> By default, ItemsControl doesn't support virtualization of its child elements. If you have a lot of items, virtualization can ...
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raw vs. html_safe vs. h to unescape html

...s declared on a helper, just like h, so it can only be used on controllers and views. "SafeBuffers and Rails 3.0" is a nice explanation on how the SafeBuffers (the class that does the html_safe magic) work. share ...
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How do I change the background color of a plot made with ggplot2

... See here for more theme details Quick reference sheet for legends, axes and themes. share | improve this answer | follow | ...
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Is there a naming convention for Django apps

...lowercase names, although the use of underscores is discouraged. So, 1 and 3 are both valid, but 3 would be the recommended approach. share | improve this answer | follow...