Tutorial by Examples: o

This shows you how to use Microsoft.Extensions.DependencyInjection nuget package without the use of the WebHostBuilder from kestrel (e.g. when you want to build something else then a webApp): internal class Program { public static void Main(string[] args) { var services = new Se...
IServiceCollection To start building an IOC container with Microsoft's DI nuget package you start with creating an IServiceCollection. You can use the already provided Collection: ServiceCollection: var services = new ServiceCollection(); This IServiceCollection is nothing more than an implemen...
First of all you'll need to have a key pair. If you don't have one yet, take a look at the 'Generate public and private key topic'. Your key pair is composed by a private key (id_rsa) and a public key (id_rsa.pub). All you need to do is to copy the public key to the remote host and add its contents...
The horizontal layout set up the object inside it horizontally. basic code: #include <QApplication> #include <QMainWindow> #include <QWidget> #include <QHBoxLayout> #include <QPushButton> int main(int argc, char *argv[]) { QApplication a(argc, argv); ...
The vertical layout set up the object inside it vertically. #include "mainwindow.h" #include <QApplication> #include <QMainWindow> #include <QWidget> #include <QVBoxLayout> #include <QPushButton> int main(int argc, char *argv[]) { QApplication...
select cst.constraint_schema, cst.constraint_name,                        fk.table_name, fk.ordinal_position, fk.column_name,                pk.table_name, pk.column_name                                 from qsys2.syscst cst join qsys2.syskeycst fk                         on fk.constraint_sc...
select cst.constraint_schema, cst.constraint_name,                        fk.table_name, fk.ordinal_position, fk.column_name,                pk.table_name, pk.column_name                                 from qsys2.syscst cst join qsys2.syskeycst fk                         on fk.constraint_sc...
/*! * \class MainMenuListView * \brief The MainMenuListView class is a QListView with a header displayed * on top. */ class MainMenuListView : public QListView { Q_OBJECT /*! * \class Header * \brief The header class is a nested class used to display the hea...
QSize MainMenuListView::Header::sizeHint() const { // fontmetrics() allows to get the default font size for the widget. return QSize(menu->headerAreaWidth(), fontMetrics().height()); } void MainMenuListView::Header::paintEvent(QPaintEvent* event) { // Catches the paint event ...
class MainMenuListView; class MainWindow : public QMainWindow { Q_OBJECT public: MainWindow(QWidget* parent = 0); ~MainWindow(); private: MainMenuListView* menuA; MainMenuListView* menuB; MainMenuListView* menuC; };
MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent) { QWidget* w = new QWidget(this); QHBoxLayout* hbox = new QHBoxLayout(); QVBoxLayout* vBox = new QVBoxLayout(); menuA = new MainMenuListView(w, "Images"); menuB = new MainMenuListView(w, "Video...
Here is a sample output: As you can seen above, it can be useful for creating stacked menus. Note that this sample is trivial. The two widgets have the same size constraints.
The QTimer::singleShot is used to call a slot/lambda asynchronously after n ms. The basic syntax is : QTimer::singleShot(myTime, myObject, SLOT(myMethodInMyObject())); with myTime the time in ms, myObject the object which contain the method and myMethodInMyObject the slot to call So for exampl...
tf.gather_nd is an extension of tf.gather in the sense that it allows you to not only access the 1st dimension of a tensor, but potentially all of them. Arguments: params: a Tensor of rank P representing the tensor we want to index into indices: a Tensor of rank Q representing the indices into ...
You can combine mulple layout thanks to other QWidgets in your main layout to do more specifics effects like an information field: for example: #include <QApplication> #include <QMainWindow> #include <QWidget> #include <QVBoxLayout> #include <QPushButton> #inclu...
The grid layout is a powerful layout with which you can do an horizontal and vertical layout a once. example: #include "mainwindow.h" #include <QApplication> #include <QMainWindow> #include <QWidget> #include <QVBoxLayout> #include <QPushButton> #inc...
Let's suppose we want raise x to a number y. You'd write this as: def raise_power(x, y): return x**y What if your y value can assume a finite set of values? Let's suppose y can be one of [3,4,5] and let's say you don't want offer end user the possibility to use such function since it is v...
Detailed instructions on getting blackberry set up or installed.
Detailed instructions on getting apk set up or installed.
Detailed instructions on getting rmarkdown set up or installed.

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