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C# elegant way to check if a property's property is null

...rom b in a.PropertyB from c in b.PropertyC select c.Value; This returns null, if any of the nullable properties are null; otherwise, the value of Value. class A { public B PropertyB { get; set; } } class B { public C PropertyC { get; set; } } class C { public strin...
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OS X Framework Library not loaded: 'Image not found'

...dded Content section in the General tab of your app target. Make sure you select the 'Embed & Sign' option. [Xcode v6 -> Xcode v10] The only thing to do is to add the framework to the Embedded binaries section in the General tab of your app target. ...
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Windows path in Python

... however best practice is to use the os.path module functions that always select the correct configuration for your OS: os.path.join(mydir, myfile) From python 3.4 you can also use the pathlib module. This is equivelent to the above: pathlib.Path(mydir, myfile) or pathlib.Path(mydir) / myfil...
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ASP.Net error: “The type 'foo' exists in both ”temp1.dll“ and ”temp2.dll"

.... Since I was using VS's Publish function to deploy the web application, I selected the option to delete all existing files prior to publish in the Publish Web wizard. This forced a clean copy of the application and everything worked fine from there. This solution might be helpful if your local deb...
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WCF Error - Could not find default endpoint element that references contract 'UserService.UserServic

...teps: Navigate to the Service Reference Folder Expand it Right Click and Select update Service Reference Observe web Config be updated share | improve this answer | follow...
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Good PHP ORM Library?

...large dependent datasets. Doctrine is in wide use, no doubt, but if I were selecting an ORM today, Doctrine would NOT be my first choice, or even second ... JM5C. – WebTigers Sep 2 at 15:07 ...
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Jquery date picker z-index issue

... }); The before show ensures that datepicker always is on top when selected, but the onClose ensures that the z-index of the field gets reset so that it doesn't overlap on any dialogs opened later with a different datepicker. ...
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How to sort the letters in a string alphabetically in Python

..., 'iiiimpp', 'iiiimpps', 'iiiimppss', 'iiiimppsss', 'iiiimppssss') We are selecting the last index (-1) of the tuple share | improve this answer | follow | ...
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Microsoft Web API: How do you do a Server.MapPath?

... The selected answer did not work in my Web API application. I had to use System.Web.HttpRuntime.AppDomainAppPath share | imp...
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Visual Studio immediate window command for Clear All

...ace the mouse cursor in the Immediate Window. Right click on the mouse and select "Clear All". share | improve this answer | follow | ...