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How to drop columns using Rails migration
...or the comment. The change method can be used to drop a column in Rails 4 applications, but should not be used in Rails 3. I updated my answer accordingly.
– Powers
Oct 6 '13 at 21:03
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Provide an image for WhatsApp link sharing
How can we include an image in our website to display in WhatsApp when we share a link like this?
19 Answers
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getting exception “IllegalStateException: Can not perform this action after onSaveInstanceState”
I have a Live Android application, and from market i have received following stack trace and i have no idea why its happening as its not happening in application code but its getting caused by some or the other event from the application (assumption)
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How do I get the dialer to open with phone number displayed?
... with back button after opening dialer in new intent. I can get back to my application only in 3 back button press (it shows me several screens of dialer which I didnt open - the dialer itself, create new contact screen, favourites). Does somebody knows how to get back to app with only 1 back button...
Why does IE9 switch to compatibility mode on my website?
...ility view’ button in that domain before;
perhaps also whether this has happened automatically due to some other content on the site causing IE8/9's renderer to crash and fall back to the old renderer;
whether the user has opted to put all sites in compatibility view by default;
whether IE thinks ...
Android代码优化小技巧 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...优化技巧，当这些小技巧综合使用起来的时候，对于整个App的性能提升还是有作用的，只是不能较大幅度...前言
这篇文章主要是介绍了一些小细节的优化技巧，当这些小技巧综合使用起来的时候，对于整个App的性能提升还是有...
ASP.NET Web API OperationCanceledException when browser cancels the request
...s a cancelled task like an unhandled exception (it logs the problem in the Application event log).
In the meantime, you could try something like the code below. It adds a top-level message handler that removes the content when the cancellation token fires. If the response has no content, the bug sh...
Best way to parse command line arguments in C#? [closed]
When building console applications that take parameters, you can use the arguments passed to Main(string[] args) .
20 Ans...
How do I remove diacritics (accents) from a string in .NET?
...ory != UnicodeCategory.NonSpacingMark)
{
stringBuilder.Append(c);
}
}
return stringBuilder.ToString().Normalize(NormalizationForm.FormC);
}
Note that this is a followup to his earlier post: Stripping diacritics....
The approach uses String.Normalize to split ...
Rearranging Tab Bar Controller Order in StoryBoard
In my app iPhone app I have a Tab Bar Controller with 4 relationships to 4 different Table View Controllers. Is there a way to rearrange the order of the relationship in the StoryBoard graphically? I can't find a way to do this and I'm sure I must be missing something!
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