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iPhone hide Navigation Bar only on first page

I have the code below that hides and shows the navigational bar. It is hidden when the first view loads and then hidden when the "children" get called. Trouble is that I cannot find the event/action to trigger it to hide again when they get back to the root view.... ...
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How to remove certain characters from a string in C++?

... How does this work? Is it not a double negative to use erase and remove? To me this reads: "erase the characters that are in positions where ()- aren't." And since each one is done at a time, shouldn't it remove ALL characters? I've read the documentation on both functions, and this ma...
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How do I get the number of elements in a list?

...n can be used with several different types in Python - both built-in types and library types. For example: >>> len([1,2,3]) 3 Official 2.x documentation is here: len() Official 3.x documentation is here: len() sh...
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Postgresql query between date ranges

... query my postgresql db to return results where a date is in certain month and year. In other words I would like all the values for a month-year. ...
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How to calculate number of days between two dates

...dates taking from Date Picker control. I have selected start date 2/2/2012 and end date 2/7/2012. I have written following code for that. ...
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What does %~d0 mean in a Windows batch file?

...h to the bat-file itself, %1 is the first argument after, %2 is the second and so on. Since the arguments are often file paths, there is some additional syntax to extract parts of the path. ~d is drive, ~p is the path (without drive), ~n is the file name. They can be combined so ~dp is drive+path. ...
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How to check if a string “StartsWith” another string?

...h. Once you've shimmed the method (or if you're only supporting browsers and JavaScript engines that already have it), you can use it like this: "Hello World!".startsWith("He"); // true var haystack = "Hello world"; var prefix = 'orl'; haystack.startsWith(prefix); // false ...
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Copy file(s) from one project to another using post build event…VS2010

...ProjectDir)Views\Home\Index.cshtml" "$(SolutionDir)MEFMVCPOC\Views\Home" and if you want to copy entire folders: xcopy /E /Y "$(ProjectDir)Views" "$(SolutionDir)MEFMVCPOC\Views" Update: here's the working version xcopy "$(ProjectDir)Views\ModuleAHome\Index.cshtml" "$(SolutionDir)MEFMVCPOC\Vi...
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@ variables in Ruby on Rails

What's the difference between @title and title ? Since both of them can be variable names. Also, how do I decide which kind of variable I should use? With @ or not? ...
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How to redirect all HTTP requests to HTTPS

...uests secure, it will just make the browser make them twice, once insecure and once secure. – Bruno Nov 3 '10 at 13:57 13 ...