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How to map atan2() to degrees 0-360

...t comfortable with this notation, and without the conversion to degrees built in: if(x>0) {radians = x;} else {radians = 2*PI + x;} so we are just adding 2PI to the result if it is less than 0. – David Doria Sep 25 '12 at 19:05 ...
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Html.DropdownListFor selected value not being set

.../ Other properties you need in your view } Controller: public ActionResult MyAction(){ var model = new MyViewModel(); model.OrderTemplates = new SelectList(db.OrderTemplates, "OrderTemplateId", "OrderTemplateName", 1); //Other initialization code return View(model); } In your View:...
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Copy a file in a sane, safe and efficient way

... Copy a file in a sane way: #include <fstream> int main() { std::ifstream src("from.ogv", std::ios::binary); std::ofstream dst("to.ogv", std::ios::binary); dst << src.rdbuf(); } This is so simple and intuitive to read it is worth t...
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Clearing purchases from iOS in-app purchase sandbox for a test user

... case SKPaymentTransactionStatePurchased: [[SKPaymentQueue defaultQueue] finishTransaction:purch]; // Do regular changes to app state for this purchase, // register in keychain, etc. break ; //.. other cases } } } The question of having your app lo...
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How to run an application as “run as administrator” from the command prompt? [closed]

... @BenVoigt please suggest an alternative then – Daniel Sokolowski Feb 17 '16 at 6:56 10 ...
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Mocking objects with Moq when constructor has parameters

... the new keyword, not mocking CustomerSyncEngine. You should use Mock.Of<CustomerSyncEngine>() The only problem with Mocking Concrete types is that Moq would need a public default constructor(with no parameters) OR you need to create the Moq with constructor arg specification. http://www.mo...
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How to get last inserted id?

...et the big picture around using the last inserted id. Of course there are alternative easier approaches. But I have reasons to keep mine. Associated functions are not included, just their names and parameter names. I use this method for medical artificial intelligence The method check if the wanted...
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How to get the current time in Python

... @Saeed: Use the function localtime() instead of the gmtime() to get your local time. – Jeyekomon Jul 3 '19 at 11:33 ...
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What is the difference between the WPF TextBlock element and Label control? [duplicate]

...get property, which indicates the target of the access key. Like this... <Label Target="{Binding ElementName=nameTextBox}">_Name:</Label> <TextBox x:Name="nameTextBox" /> In the absence of the Target property, the Label control does nothing useful. You'll just hear a beep if you...
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How can we programmatically detect which iOS version is device running on? [duplicate]

...Device] systemVersion]; float ver_float = [ver floatValue]; if (ver_float < 5.0) return false; For Swift 4.0 syntax below example is just checking if the device is of iOS11 or greater version. let systemVersion = UIDevice.current.systemVersion if systemVersion.cgFloatValue >= 11.0 { //...