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How to join int[] to a character separated string in .NET?
...formance. Join method needs to know the size of the data to effectively preallocate necessary amount of memory.
Here is a part of internal implementation of String.Join method:
// length computed from length of items in input array and length of separator
string str = FastAllocateString(length);
f...
How do I 'git diff' on a certain directory?
git diff actually runs a diff on all source code. How do I do this on a certain directory, so that I can view modifications on files underneath it?
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How do I check out a remote Git branch?
Somebody pushed a branch called test with git push origin test to a shared repository. I can see the branch with git branch -r .
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How to make --no-ri --no-rdoc the default for gem install?
I don't use the RI or RDoc output from the gems I install in my machine or in the servers I handle (I use other means of documentation).
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Rails: How can I set default values in ActiveRecord?
...of the available methods, but I believe that defining an after_initialize callback is the way to go for the following reasons:
default_scope will initialize values for new models, but then that will become the scope on which you find the model. If you just want to initialize some numbers to 0 then...
How can I confirm a database is Oracle & what version it is using SQL?
I'm building an installer for an application. The user gets to select a datasource they have configured and nominate what type of database it is. I want to confirm that the database type is indeed Oracle, and if possible, what version of Oracle they are running by sending a SQL statement to the dat...
Most Useful Attributes [closed]
... useful. There are some predefined ones such as [Browsable(false)] which allows you to hide properties in the properties tab. Here is a good question explaining attributes: What are attributes in .NET?
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How costly is .NET reflection?
I constantly hear how bad reflection is to use. While I generally avoid reflection and rarely find situations where it is impossible to solve my problem without it, I was wondering...
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How to securely store access token and secret in Android?
...other apps cannot access them. On a rooted devices, if the user explicitly allows access to some app that is trying to read them, the app might be able to use them, but you cannot protect against that. As for encryption, you have to either require the user to enter the decrypt passphrase every time ...
The communication object, System.ServiceModel.Channels.ServiceChannel, cannot be used for communicat
What is this error all about, and how would I go about solving it?
14 Answers
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