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Entity Framework select distinct name
... select ta.Name).Distinct();
This will give you an IEnumerable<string> - you can call .ToList() on it to get a List<string>.
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How do I grep recursively?
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also good to know, if you are just looking for a fixed string and not a regex, use -F option. it will save you scads of time by not invoking the regex parser. very handy if you are searching lots of files.
– Jeff
May 6 '15 at 17:20
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Passing an array to a query using a WHERE clause
...prepare and execute the query as noted above.
Using the IN() operator with strings
It is easy to change between strings and integers because of the bound parameters. For PDO there is no change required; for MySQLi change str_repeat('i', to str_repeat('s', if you need to check strings.
[1]: I've omit...
Tools to generate database tables diagram with Postgresql? [closed]
...py -dp postgresql-9.3-1100.jdbc3.jar -s public -noads
You'll need to install graphviz as well if you want graphics (apt-get install graphviz for debian based distros).
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Modify UIImage renderingMode from a storyboard/xib file
...er it's used rather than just in one interface builder file, but in almost all cases (that I've encountered) this is the behavior you want.
A few things to note:
The image color will not appear to have changed in interface builder (as of Xcode 6.1.1) but will work when the application is run.
I...
Logging errors in ASP.NET MVC
...rContext)
{
// You could use any logging approach here
StringBuilder builder = new StringBuilder();
builder
.AppendLine("----------")
.AppendLine(DateTime.Now.ToString())
.AppendFormat("Source:\t{0}", filterContext.Exception.Source)
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Can an Android NFC phone act as an NFC tag?
... a simple old nfc tag? Is there some application I'm not thinking of? Usually, you'd want to emulate something like a transit card, access key, or credit card which would require a secure element (I think, but not sure).
s...
Strings are objects in Java, so why don't we use 'new' to create them?
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In addition to what was already said, String literals [ie, Strings like "abcd" but not like new String("abcd")] in Java are interned - this means that every time you refer to "abcd", you get a reference to a single String instance, rather than a new one each time...
How do I pass the value (not the reference) of a JS variable to a function? [duplicate]
...selection(i);
});
})(i);
}
By creating an anonymous function and calling it with the variable as the first argument, you're passing-by-value to the function and creating a closure.
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Best way to read a large file into a byte array in C#?
...ctored to this (in lieu of File.ReadAllBytes):
public byte[] ReadAllBytes(string fileName)
{
byte[] buffer = null;
using (FileStream fs = new FileStream(fileName, FileMode.Open, FileAccess.Read))
{
buffer = new byte[fs.Length];
fs.Read(buffer, 0, (int)fs.Length);
}
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