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How to ignore a property in class if null, using json.net
...eObject(myObject,
Newtonsoft.Json.Formatting.None,
new JsonSerializerSettings {
NullValueHandling = NullValueHandling.Ignore
});
...
android edittext onchange listener
...d editing the text if the EditText loses focus or if the user presses the done button (this depends on your implementation and on what fits the best for you).
Second, you can't get an EditText instance within the TextWatcher only if you have declared the EditText as an instance object. Even though ...
trying to align html button at the center of the my page [duplicate]
...ute;
top: 50%;
}
There are many ways to skin a cat, and this is just one.
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Error: The processing instruction target matching “[xX][mM][lL]” is not allowed
... are combined programmatically or
via cut-and-paste. There can only be one <?xml ?> declaration
in an XML file, and it can only be at the top.
Resolution: Search for
<?xml in a case-insensitive manner, and remove all but the top XML
declaration from the file.
...
Creating an empty file in C#
...ilename).Dispose();
Either way, if you're going to use this in more than one place you should probably consider wrapping it in a helper method, e.g.
public static void CreateEmptyFile(string filename)
{
File.Create(filename).Dispose();
}
Note that calling Dispose directly instead of using a...
Python to print out status bar and percentage
...u don't mind adding a dependency, it's a good solution. Otherwise, go with one of the other answers.
A simple example of how to use it:
import progressbar
from time import sleep
bar = progressbar.ProgressBar(maxval=20, \
widgets=[progressbar.Bar('=', '[', ']'), ' ', progressbar.Percentage()])
...
I didn't find “ZipFile” class in the “System.IO.Compression” namespace
...In the Add Reference dialog box, select the tab indicating the type of component you want to reference.
Select the components you want to reference, and then click OK.
From the MSDN Article, How to: Add or Remove References By Using the Add Reference Dialog Box.
...
Select Last Row in the Table
...t descending.
As an example, if you have a time stamp when the upload was done called upload_time, you'd do something like this;
For Pre-Laravel 4
return DB::table('files')->order_by('upload_time', 'desc')->first();
For Laravel 4 and onwards
return DB::table('files')->orderBy('upload_t...
“R cannot be resolved to a variable”? [duplicate]
...oblem. If R.java does exist but variables in it aren't recognized by just one Java file, for instance, note whether that file is in the same package as R.java--if not, that's why R.id.* is out of scope.
– hotshot309
Jan 4 '12 at 2:19
...
How do I convert dates in a Pandas data frame to a 'date' data type?
I have a Pandas data frame, one of the column contains date strings in the format YYYY-MM-DD
10 Answers
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