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The object cannot be deleted because it was not found in the ObjectStateManager
I am getting this error "The object cannot be deleted because it was not found in the ObjectStateManager."
10 Answers
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Two-way encryption: I need to store passwords that can be retrieved
...trong class that takes care of everything for you:
What is the safest algorithm to encrypt the passwords with?
safest? any of them. The safest method if you're going to encrypt is to protect against information disclosure vulnerabilities (XSS, remote inclusion, etc). If it gets out, the attacker...
Get number days in a specified month using JavaScript? [duplicate]
..., February is 2, etc). This is
// because we're using 0 as the day so that it returns the last day
// of the last month, so you have to add 1 to the month number
// so it returns the correct amount of days
function daysInMonth (month, year) {
return new Date(year, month, 0).getDate();
}
// Jul...
Can I write into the console in a unit test? If yes, why doesn't the console window open?
...a test project in Visual Studio. I use Microsoft.VisualStudio.TestTools.UnitTesting .
12 Answers
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How do I auto size a UIScrollView to fit its content
... make a UIScrollView auto-adjust to the height (or width) of the content it's scrolling?
21 Answers
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What is the quickest way to HTTP GET in Python?
...follow
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edited May 17 '19 at 6:13
Boris
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Set the maximum character length of a UITextField
How can I set the maximum amount of characters in a UITextField on the iPhone SDK when I load up a UIView ?
44 Answers
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Why do objects of the same class have access to each other's private data?
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Because that's how it works in C++. In C++ access control works on per-class basis, not on per-object basis.
Access control in C++ is implemented as a static, compile-time feature. I think it is rather obvious that it is not really possible to...
Generate a random point within a circle (uniformly)
I need to generate a uniformly random point within a circle of radius R .
21 Answers
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Rails Model, View, Controller, and Helper: what goes where?
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MVC
Controller: Put code here that has to do with working out what a user wants, and deciding what to give them, working out whether they are logged in, whether they should see certain data, etc. In the end, the controller looks at requests and works out what data (Model...