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Do I need all three constructors for an Android custom view?

... How did I never know this? – Suragch Nov 4 '17 at 9:17  |  show 1 more comment ...
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How can you make a custom keyboard in Android?

I want to make a custom keyboard. I don't know how to do it using XML and Java. The following picture is a model of the keyboard I want to make. It only needs numbers. ...
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What do the &,

Up until now I have only used database.yml with each parameter called out explicitly, in the file below it uses some characters I do not understand. What does each line and symbol(&,*, ...
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Why not use tables for layout in HTML? [closed]

...y browser vendors apply special treatment to the element. After all, they know that “<table> elements are for tabular data only” and might use this fact to improve the rendering engine, in the process subtly changing how <table>s behave, and thus breaking cases where it was previousl...
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Unique Key constraints for multiple columns in Entity Framework

... With Entity Framework 6.1, you can now do this: [Index("IX_FirstAndSecond", 1, IsUnique = true)] public int FirstColumn { get; set; } [Index("IX_FirstAndSecond", 2, IsUnique = true)] public int SecondColumn { get; set; } The second parameter in the attribu...
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Why do we need boxing and unboxing in C#?

...e type). Think of it like this. You have a variable o of type object. And now you have an int and you want to put it into o. o is a reference to something somewhere, and the int is emphatically not a reference to something somewhere (after all, it's just a number). So, what you do is this: you make...
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Unauthorised webapi call returning login page rather than 401

... I guess the OWIN pipeline takes over and introduces some new behavior. Now when the user is not authorized a status of 200 is returned with the following information in the HTTP header. X-Responded-JSON: {"status":401,"headers":{"location":"http:\/\/localhost:59540\/Account\/Login?ReturnUrl=%2F...
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LEFT OUTER joins in Rails 3

...In Rails 3, this is the only way to have true control over your joins and know exactly what's going on. – Joshua Pinter Jan 29 '18 at 16:26 add a comment  |...
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How to specify HTTP error code?

... This is all deprecated now, you should use res.sendStatus(401);. – Cipi Jun 16 '17 at 16:50 1 ...
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What does “./bin/www” do in Express 4.x?

... Because the app.js file that was generated by the Express 4 generator is now a Node.js module, it can no longer be started independently as an app (unless you modify the code). The module must be loaded in a Node.js file and started via the Node.js file. The Node.js file is ./bin/www in this case....