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How should I cast in VB.NET?

... Those are all slightly different, and generally have an acceptable usage. var.ToString() is going to give you the string representation of an object, regardless of what type it is. Use this if var is not a string already. CStr(var) is the VB string cast op...
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How do you set the Content-Type header for an HttpClient request?

...(note that the code snippet adds application/json in two places-for Accept and Content-Type headers): HttpClient client = new HttpClient(); client.BaseAddress = new Uri("http://example.com/"); client.DefaultRequestHeaders .Accept .Add(new MediaTypeWithQualityHeaderValue("application/json...
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Which is more correct: … OR …

Are both <h1><a ...> ... </a></h1> and <a ...><h1> ... </h1></a> valid HTML, or is only one correct? If they are both correct, do they differ in meaning? ...
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How to close tag properly?

... <img src='stackoverflow.png' /> Works fine and closes the tag properly. Best to add the alt attribute for people that are visually impaired. share | improve this answ...
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Java: Subpackage visibility?

I have two packages in my project: odp.proj and odp.proj.test . There are certain methods that I want to be visible only to the classes in these two packages. How can I do this? ...
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Easy way to prevent Heroku idling?

... or less the same solution as Jesse but maybe more integrated to Heroku... And with a few perks (performance monitoring is just great). Note: to all those saying it doesn't work: the important part in my answer is "availability monitor". Just installing the addon won't help. You also need to s...
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Set theme for a Fragment

...gment.onCreateView you get LayoutInflater parameter, which inflates views, and it holds Context used for theme, actually this is the Activity. So your inflated views use Activity's theme. To override theme, you may call LayoutInflater.cloneInContext, which mentions in Docs that it may be used for c...
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android View not attached to window manager

...ompleted. I seemed to resolve this by setting the dialog to null onPause() and then checking this in the AsyncTask before dismissing. @Override public void onPause() { super.onPause(); if ((mDialog != null) && mDialog.isShowing()) mDialog.dismiss(); mDialog = null; } ...
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How to use a variable to specify column name in ggplot

I have a ggplot command 6 Answers 6 ...
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Unicode (UTF-8) reading and writing to files in Python

I'm having some brain failure in understanding reading and writing text to a file (Python 2.4). 14 Answers ...