Tutorial by Examples: di

Besides main required functional includes, you may need other includes, like themes and plugins. Those reside in /themes/ and /plugins/ sub-directories respectively. I.e.: <script src="https://www.amcharts.com/lib/3/amcharts.js"></script> <script src="https://www.amc...

Consider a structure of the following classes should be constructed in XAML an then read into a CLR object: namespace CustomXaml { public class Test { public string Value { get; set; } public List<TestChild> Children { get; set; } = new List<TestChild>(); ...

sed -i -e cmd file will modify file even if its permissions are set to read-only. This command behaves similarly to sed -e cmd file > tmp; mv -f tmp file rather than sed -e cmd file > tmp; cat tmp > file; rm tmp The following example uses gnu sed: $ echo 'Extremely important data' &gt...

The purpose of this documentation is to use a scanner without any user interface. A common use is to upload a PDF scanned file directly to Google Drive or Dropbox just by pressing scanner-buttons. scanbd permits to trigger actions from the scanner buttons, it uses sane. What make things a little b...

To get data from testcollection collection in testdb database where name=dev import org.bson.Document; import com.mongodb.BasicDBObject; import com.mongodb.MongoClient; import com.mongodb.ServerAddress; import com.mongodb.client.MongoCollection; import com.mongodb.client.MongoCursor; import c...

We use ExecutorService to assign threads from the internal thread pool or create them on-demand to perform tasks. Each ExecutorService has an ThreadFactory, but The ExecutorService will use always a default one if we don't set a custom one. Why we should do this? To set a more descriptive thread...

autodie allows you to work with files without having to explicitly check for open/close failures. Since Perl 5.10.1, the autodie pragma has been available in core Perl. When used, Perl will automatically check for errors when opening and closing files. Here is an example in which all of the lines ...

VI snippets are like Screenshots of a Block Diagram, with one important difference. They can be opened in LabVIEW to reconstruct the orginal program. They are saved in the common .PNG format so they can be used like normal pictures e.g. in forums and on StackOverflow. To create a VI snippet mark th...

Let's say that you have exam scores for several exams and you want to divide them into quartiles per exam. -- Setup data: declare @values table(Id int identity(1,1) primary key, [Value] float, ExamId int) insert into @values ([Value], ExamId) values (65, 1), (40, 1), (99, 1), (100, 1), (90, 1), ...

Extract all file contents of a zip file import zipfile with zipfile.ZipFile('zipfile.zip','r') as zfile: zfile.extractall('path') If you want extract single files use extract method, it takes name list and path as input parameter import zipfile f=open('zipfile.zip','rb') zfile=zipfile.Z...

This example shows the simplest usage of the Image component to display an image. The Image source property is a url type that can be either a file with an absolute or relative path, an internet URL (http://) or a Qt resource (qrc:/) import QtQuick 2.3 Rectangle { width: 640 height: 4...

function somethingThatReturnsADisposableResource() { return getSomeResourceAsync(...).disposer(resource => { resource.dispose() }) } Promise.using(somethingThatReturnsADisposableResource(), resource => { // use the resource here, the disposer will automatically close it when ...

You can qualify a whole folder folder for a specific device type, its files will override the ones outside it on that device: / DeviceFamily-Mobile PageOfEden.xaml MainPage.xaml MainPage.xaml MainPage.xaml.cs PageOfEden.xaml PageOfEden.xaml.cs Files inside the qualifying folder won...

Multidimensional arrays follow the same rules as single-dimensional arrays when passing them to a function. However the combination of decay-to-pointer, operator precedence, and the two different ways to declare a multidimensional array (array of arrays vs array of pointers) may make the declaratio...

This UNION ALL combines data from multiple tables and serve as a table name alias to use for your queries: SELECT YEAR(date_time_column), MONTH(date_time_column), MIN(DATE(date_time_column)), MAX(DATE(date_time_column)), COUNT(DISTINCT (ip)), COUNT(ip), (COUNT(ip) / COUNT(DISTINCT (ip))) AS Ratio ...

Import Element Tree module and open xml file, get an xml element import xml.etree.ElementTree as ET tree = ET.parse('sample.xml') root=tree.getroot() element = root[0] #get first child of root element Element object can be manipulated by changing its fields, adding and modifying attributes, a...

All we need are: ViewPager, TabLayout and 2 drawables for selected and default dots. Firstly, we have to add TabLayout to our screen layout, and connect it with ViewPager. We can do this in two ways: Nested TabLayout in ViewPager <android.support.v4.view.ViewPager android:id="@+i...

To give an alert close functionality, all we need is to add data-dismiss="alert" to our close button. <div class="alert alert-info alert-dismissible" role="alert"> <button type="button" class="close" data-dismiss="alert" aria...

This example uses the Thread Class, but multithreaded applications can also be made using BackgroundWorker. The AddNumber, SubstractNumber, and DivideNumber functions will be executed by separate threads: Edit: Now the UI thread waits for the child threads to finish and shows the result. Module Mo...

The standard structure for a project built by SBT is: projectName/ build.sbt project/ <SBT sub-build information> src/ main/ scala/ <Scala source files> java/ <Java source files> resources/ ...