Tutorial by Examples: am

When a navigation property exist on a model, Entity Framework will automatically create a Foreign Key column. If a specific Foreign Key name is desired but is not contained as a property in the model, it can be set explicitly using the Fluent API. By utilizing the Map method while establishing the F...
var EmberApp = require('ember-cli/lib/broccoli/ember-app'); module.exports = function(defaults) { var app = new EmberApp(defaults, { // Add options here datatables: { core: true, style: 'bs', extensions: [ { name: 'buttons', extensions: ['colVi...
Suppose we'd like to wrap the Google Maps JavaScript API google.maps: @JS('google.maps') library maps; import "package:js/js.dart"; @JS() class Map { external Map(Location location); external Location getLocation(); } We now have the Map Dart class which corresponds to t...
import sys from PyQt4 import QtGui def window(): app = QtGui.QApplication(sys.argv) w = QtGui.QWidget() b = QtGui.QLabel(w) b.setText("Hello World!") w.setGeometry(100,100,200,50) b.move(50,20) w.setWindowTitle("PyQt") w.show() sys.exit(app...
If developers want to test Google Maps or any other Google service like Gmail,Youtube, Google drive etc. then they first need to install Google framework on Genymotion. Here are the steps:- 4.4 Kitkat 5.0 Lollipop 5.1 Lollipop 6.0 Marshmallow 7.0 Nougat 7.1 Nougat (webview patch) Download fro...
A namespace can be given an alias (i.e., another name for the same namespace) using the namespace identifier = syntax. Members of the aliased namespace can be accessed by qualifying them with the name of the alias. In the following example, the nested namespace AReallyLongName::AnotherReallyLongNam...
Enable pipelines in your settings.py ITEM_PIPELINES = { 'project_folder.pipelines.MyPipeline': 100 } Then write this code in items.py # -*- coding: utf-8 -*- from scrapy import Item, Field from collections import OrderedDict class DynamicItem(Item): def __setitem__(self, key, v...
This example shows a very basic example of how to utilize onCommand. I don't suggest processing your commands directly in onCommand, but this does the trick for this simple case. In this example we attempt to set the player's gamemode. The first thing we need to do is make sure that the sender isn...
A static data member of the class may be fully defined within the class definition if it is declared inline. For example, the following class may be defined in a header. Prior to C++17, it would have been necessary to provide a .cpp file to contain the definition of Foo::num_instances so that it wou...
import sys from PyQt4.QtCore import * from PyQt4.QtGui import * def window(): app = QApplication(sys.argv) win = QDialog() b1 = QPushButton(win) b1.setText("Button1") b1.move(50,20) b1.clicked.connect(b1_clicked) b2 = QPushButton(win) b2.setText(&quot...
Let's say we have some server that registers new users and greets them with some message. And we want to monitor this server and change some of it's parameters. First, we need an interface with our monitoring and control methods public interface UserCounterMBean { long getSleepTime(); ...
The Entity Framework library comes only with an SQL Server provider. To use SQLite will require additional dependencies and configuration. All required dependencies are available on NuGet. Install SQLite Managed Libraries All of the mananged depedencies can be installed using the NuGet Package Man...
<?xml version="1.0" encoding="UTF-8"?> <mule xmlns:http="http://www.mulesoft.org/schema/mule/http" xmlns="http://www.mulesoft.org/schema/mule/core" xmlns:doc="http://www.mulesoft.org/schema/mule/documentation" ...
In your activity layout activity_main.xml specify WebView component as following: <?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" ...
The following is an example of using an user-defined function to be called multiple(∞) times in a script with ease. import turtle, time, random #tell python we need 3 different modules turtle.speed(0) #set draw speed to the fastest turtle.colormode(255) #special colormode turtle.pensize(4) #siz...
When writing Gherkin, there may be times in which you want to parameterize your steps for reusability by the engineer who is implementing the test plans. Steps receive parameters through regular expression capturing groups. (Engineering Note: If you do not have matching parameters for each capturing...
If you're accepting user input for folder paths, you might need to check for trailing backslashes (\) before building a file path. The FSO.BuildPath method makes this simpler: Const sourceFilePath As String = "C:\Temp" '<-- Without trailing backslash Const targetFilePath As Strin...
This example implements a linked list with many of the same methods as that of the built-in list object. class Node: def __init__(self, val): self.data = val self.next = None def getData(self): return self.data def getNext(self): return self.ne...
Once using is used to introduce the name cout from the namespace std into the scope of the main function, the std::cout object can be referred to as cout alone. #include <iostream> int main() { using std::cout; cout << "Hello, world!\n"; }
If a using-declaration occurs at class scope, it is only allowed to redeclare a member of a base class. For example, using std::cout is not allowed at class scope. Often, the name redeclared is one that would otherwise be hidden. For example, in the below code, d1.foo only refers to Derived1::foo(c...

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