Toggle between pages with storyboard [closed] - objective-c

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I made a simple if condition and if it returns YES then I want to pass between two UIViewControllers, and I can't find the way to do that
without using a UIButton.
How can I do that?

I think the method you're looking for is performSegueWithIdentifier:sender:.
Don't forget to give your segue an identifier in the storyboard.

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Will leveldb method put update a value? [closed]

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Will the method put update a value or is it necessary to first delete it and then put the new one?
Yes, it will update value (delete is not required). Do you have any problem with it?

Form in Objective-C [closed]

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I am looking for a way to simply create a form in Objective-C. I tried to build one using a table view, but this one does not handle the return key correctly and does not look very apple-like. Is there a "right way" to do this?
Table view is the best control for this. Create a custom cell with UITextField. Handle return key in you UITextField.

Prestashop custom product fields [closed]

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I am trying to add some custom fields on my prestashop backend and, when filled, to show up in frontend. Here are some examples of what I want to implement:
And here is the frontpage:
Searched everywhere but no results. I just need an idea or an example. Thank you!

How To Work With MVC Architecture in VBA/Access [closed]

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i'd like to know how to work with Model View Controller architecture in VBA language. I want to know where the Model code, the View code and the Controller code goes into the VBA/Access structure. I'd appreciate your help.
Thanks in advance.

Overlay Window in Mac [closed]

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I found an overlay window example at developer.apple.com. It works perfectly but I also want to overlay my program's window on other full screen application's windows.
Is there any way to perform this function?
Check out window levels in the NSWindow documentation.
Using NSScreenSaverWindowLevel or NSStatusWindowLevel should be sufficient.
Also check out http://cocoadev.com/wiki/NSWindowLevel