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Show MySQL host via SQL Command
...ink you try to get the remote host of the conneting user...
You can get a String like 'myuser@localhost' from the command:
SELECT USER()
You can split this result on the '@' sign, to get the parts:
-- delivers the "remote_host" e.g. "localhost"
SELECT SUBSTRING_INDEX(USER(), '@', -1)
-- deli...
What is meant by “managed” vs “unmanaged” resources in .NET?
...e your code thusly:
using (var connection = new SqlConnection("connection_string_here"))
{
// Code to use connection here
}
As this ensures that .Dispose() is called on the connection object, ensuring that any unmanaged resources are cleaned up.
...
Rails Model, View, Controller, and Helper: what goes where?
...he model (it treats the model as it's data in the same way you might treat strings and arrays as data in objects outside of Rails). Here's a good video with an example of this technique.
– Joshua Cheek
Dec 15 '11 at 11:13
...
Select + copy text in a TextView?
...ght and copying on LongClick action.
This is how I managed using SpannableString:
SpannableString highlightString = new SpannableString(textView.getText());
highlightString.setSpan(new BackgroundColorSpan(ContextCompat.getColor(getActivity(), R.color.gray))
, 0, textView.getText().len...
RSpec: What is the difference between a feature and a request spec?
...would you recommend to use Rails paths (i.e visit users_path) or hardcoded strings (visit '/users')?. Personally, I prefer not to use any app internals in those kind of specs.
– tokland
Dec 3 '14 at 17:25
...
Is duplicated code more tolerable in unit tests?
...ps you need some Custom Assertions. For example, if multiple tests have a string of assertions like:
assertEqual('Joe', person.getFirstName())
assertEqual('Bloggs', person.getLastName())
assertEqual(23, person.getAge())
Then perhaps you need a single assertPersonEqual method, so that you can wri...
Unexpected value from nativeGetEnabledTags: 0
...rstand the components (start of line, negative look-ahead, any characters, string literal, any characters, end of line), but I don't understand why some of it is necessary. Doesn't a regex return any line that contains a match, so why do we need ^, .*, and $? Why not just (?!nativeGetEnabledTags)? (...
How to replace innerHTML of a div using jQuery?
...
The html() function can take strings of HTML, and will effectively modify the .innerHTML property.
$('#regTitle').html('Hello World');
However, the text() function will change the (text) value of the specified element, but keep the html structure.
$(...
How can I verify if a Windows Service is running
...
private static bool ServiceExists(string serviceName) { return ServiceController.GetServices().FirstOrDefault(s => s.ServiceName == serviceName) != null; }
– Dmitry Pavlov
Aug 15 '13 at 19:...
Intercept page exit event
...some time to finish saving data');
};
break;
};
}; // no return string --> user will leave as normal but data is send to server
Edit:
See also Synchronous_AJAX and how to do that with jquery
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