大约有 44,000 项符合查询结果(耗时:0.0696秒) [XML]

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Is this the right way to clean-up Fragment back stack when leaving a deeply nested stack?

I'm using the Android Compatibility library to implement fragments and have extended the layout sample so that a fragment contains a button which fires off another fragment. ...
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How do I seed a random class to avoid getting duplicate random values [duplicate]

... You should not create a new Random instance in a loop. Try something like: var rnd = new Random(); for(int i = 0; i < 100; ++i) Console.WriteLine(rnd.Next(1, 100)); The sequence of random numbers generated by a single Random instance is suppose...
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Get the IP address of the machine

...) will let you do the same thing easily, it works fine for me on os x 10.5 and should be the same below. I've done a quick example below which will print all of the machine's IPv4 address, (you should also check the getifaddrs was successful ie returns 0). I've updated it show IPv6 addresses too. ...
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Remove duplicates in the list using linq

... , What will be the change in code if i have a List<my_Custom_Class> and List<string>. My custom class has various items in which one is DCN number and list<string> has only DCN number. So I need to check the List<Custom_Class> contains any dcn from List<string>. For ex...
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How do I get the application exit code from a Windows command line?

I am running a program and want to see what its return code is (since it returns different codes based on different errors). ...
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string.IsNullOrEmpty(string) vs. string.IsNullOrWhiteSpace(string)

...bad practice when there is string.IsNullOrWhiteSpace(string) in .NET 4.0 and above? 9 Answers ...
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C# switch statement limitations - why?

...t the same thing as a big if-else statement. Each case must be unique and evaluated statically. The switch statement does a constant time branch regardless of how many cases you have. The if-else statement evaluates each condition until it finds one that is true. In fact, the C#...
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How can I check if a single character appears in a string?

...indexOf() uses loop internally. None of the answers gives correct solution and if someone dares to ask a new question, people declare it Duplicate. Really disappointing ;( – Prashant Prabhakar Singh Mar 3 '17 at 7:22 ...
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MVC 5 Seed Users and Roles

...ave been playing about with the new MVC 5, I have a few models, controller and views setup using code first migrations. 7 ...
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@synthesize vs @dynamic, what are the differences?

... @synthesize will generate getter and setter methods for your property. @dynamic just tells the compiler that the getter and setter methods are implemented not by the class itself but somewhere else (like the superclass or will be provided at runtime). Uses ...