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How do I invert BooleanToVisibilityConverter?

...ure it to, for example, use Collapsed for true and Visible for false: <Application.Resources> <app:BooleanToVisibilityConverter x:Key="BooleanToVisibilityConverter" True="Collapsed" False="Visible" /> </Application.Resources> This inversion is usef...
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Xcode: What is a target and scheme in plain language?

...eah the title says it :-) What do they mean in plain English language? I really don't understand the explanation on Apple's website and I need to rename my target and I'm afraid that nothing works after that.. ...
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Unauthorised webapi call returning login page rather than 401

How do I configure my mvc/webapi project so that a webapi method called from a razor view doesn't return the loginpage when its unauthorised? ...
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What's the use/meaning of the @ character in variable names in C#?

...terfacing with other programming languages. The character @ is not actually part of the identifier, so the identifier might be seen in other languages as a normal identifier, without the prefix. An identifier with an @ prefix is called a verbatim identifier. ...
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How to install psycopg2 with “pip” on Python?

I'm using virtualenv and I need to install "psycopg2". 33 Answers 33 ...
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How do I install package.json dependencies in the current directory using npm

...e a web app: fooapp . I have a package.json in the root. I want to install all the dependencies in a specific node_modules directory . How do I do this? ...
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How can I convert a stack trace to a string?

... If you don't like including an external library for something as small and simple as this, use this answer. – Stijn de Witt Jan 31 '12 at 8:31 ...
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How can I save application settings in a Windows Forms application?

...e the exe is instead of the one in the user's AppData folder. No, not generally good, but I use it during development to use the same settings from compile to compile (w/o it, they go new unique user folders with each compile). – minnow Sep 13 '12 at 22:55 ...
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How can I put a database under git (version control)?

... and version control that instead. This way it is a flat text file. Personally I suggest that you keep both a data dump, and a schema dump. This way using diff it becomes fairly easy to see what changed in the schema from revision to revision. If you are making big changes, you should have a secon...
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Merge 2 arrays of objects

...ects in JavaScript. You can use this one line trick Array.prototype.push.apply(arr1,arr2); For Example var arr1 = [{name: "lang", value: "English"},{name: "age", value: "18"}]; var arr2 = [{name : "childs", value: '5'}, {name: "lang", value: "German"}]; Array.prototype.push.apply(arr1,arr2); ...