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How to remove an item for a OR'd enum?
...omplement ~Q), the statement X & ~Q clears any bits that were set in Q from X and returns the result.
So to remove or clear the BLUE bits, you use the following statement:
colorsWithoutBlue = colors & ~Blah.BLUE
colors &= ~Blah.BLUE // This one removes the bit from 'colors' itself
Yo...
Difference between Property and Field in C# 3.0+
...en a Field and a Property in C#? but my question has a slight difference (from my point of view):
10 Answers
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How to generate an openSSL key using a passphrase from the command line?
...ects the encrypted private key on standard input - you can instead read it from a file using -in <file>).
Example of creating a 3072-bit private and public key pair in files, with the private key pair encrypted with password foobar:
openssl genrsa -aes128 -passout pass:foobar -out privkey....
Undo changes in entity framework entities
...ontext.Entry(entity).Reload();
Accroding to MSDN:
Reloads the entity from the database overwriting any property values with values from the database. The entity will be in the Unchanged
state after calling this method.
Note that reverting through the request to database has some drawbacks:...
Extract traceback info from an exception object
...
Yes, it is meant to be used. From What’s New In Python 3.0 "PEP 3134: Exception objects now store their traceback as the traceback attribute. This means that an exception object now contains all the information pertaining to an exception, and there ar...
MSysGit vs. Git for Windows
... git-scm.com lists msysgit.github.io as the maintained build for windows.
From the updated wiki:
... we decided to just phase out the name "msysGit" (as well as the GitHub org of the same name) and work on Git for Windows (with the corresponding GitHub org, and using the name "Git for Windows"...
Java synchronized method lock on object, or method?
...chronize on the whole object, so two thread accessing a different variable from this same object would block each other anyway.
If you want to synchronize only on one variable at a time, so two threads won't block each other while accessing different variables, you have synchronize on them separat...
How can I create a UIColor from a hex string?
How can I create a UIColor from a hexadecimal string format, such as #00FF00 ?
47 Answers
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Is there a way to define a min and max value for EditText in Android?
...;& c <= b : c >= b && c <= a;
}
}
Then use this from your Activity :
EditText et = (EditText) findViewById(R.id.myEditText);
et.setFilters(new InputFilter[]{ new InputFilterMinMax("1", "12")});
This will allow user to enter values from 1 to 12 only.
EDIT :
Set your ed...
Convert Unix timestamp to a date string
Is there a quick, one-liner way to convert a Unix timestamp to a date from the Unix command line?
11 Answers
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