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“R cannot be resolved to a variable”? [duplicate]
...ace, it's usually a typo or other problem in an XML layout file. Using a capital letter in your XML filenames will also cause that problem. If R.java does exist but variables in it aren't recognized by just one Java file, for instance, note whether that file is in the same package as R.java--if no...
Dynamically generating a QR code with PHP [closed]
...tion to the QR codes library posted by @abaumg, Google provides a QR Codes API QR Codes APImany thanks to @Toukakoukan for the link update.
To use this , basically:
https://chart.googleapis.com/chart?chs=300x300&cht=qr&chl=http%3A%2F%2Fwww.google.com%2F&choe=UTF-8
300x300 is the siz...
Why C# implements methods as non-virtual by default?
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@mxmissile: me too, but good API design is hard anyway. I think sealed-by-default makes perfect sense for code you own. More often than not, the other programmer on your team did not consider inheritance when they implemented that class you need, and sea...
Do you have to put Task.Run in a method to make it async?
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So if I have to consume a synchronous external api within a web api controller, I should NOT wrap the synchronous call in Task.Run()? As you said, doing so will keep the initial request thread unblocked but it's using another pool thread to call the external api. In fact ...
Angular.js programmatically setting a form field to dirty
...ular version up to 1.3.3. Starting with 1.3.4 you should use newly exposed API method $setDirty() from ngModel.NgModelController.
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How to attach my repo to heroku app
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git push
Put empty (blank) when the Git prompt for username, and your API Key for the password. You can get your API Key by showing it from the link below.
https://dashboard.heroku.com/account
Note: You cannot authenticate with the Heroku HTTP Git endpoint using your Heroku username (email) ...
Could not load file or assembly 'System.Web.Http 4.0.0 after update from 2012 to 2013
...p://www.asp.net/mvc/tutorials/mvc-5/how-to-upgrade-an-aspnet-mvc-4-and-web-api-project-to-aspnet-mvc-5-and-web-api-2
28 Ans...
RESTfully design /login or /register resources?
I was designing a web app and then stopped to think about how my api should be designed as a RESTful web service. For now, most of my URI's are generic and might apply to various web apps:
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Set style for TextView programmatically
... Where this wins over Dandre Allison's answer is that it doesn't require API v11.
– Martin Capodici
Jun 21 '14 at 4:05
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Make a URL-encoded POST request using `http.NewRequest(…)`
I want to make a POST request to an API sending my data as a application/x-www-form-urlencoded content type. Due to the fact that I need to manage the request headers, I'm using the http.NewRequest(method, urlStr string, body io.Reader) method to create a request. For this POST request I append ...