1597336320
I’ve written several articles about dependency injection with .NET Core. With changes since .NET Core 3, an update is necessary. This is an article of a services taking advantage of the Host class.
In the first article of this series, dependency injection is introduced, and I’m showing how a dependency injection container can be created with the Host class.
#.net core #dependency injection #dotnet #dotnetcore #.net
1602560783
In this article, we’ll discuss how to use jQuery Ajax for ASP.NET Core MVC CRUD Operations using Bootstrap Modal. With jQuery Ajax, we can make HTTP request to controller action methods without reloading the entire page, like a single page application.
To demonstrate CRUD operations – insert, update, delete and retrieve, the project will be dealing with details of a normal bank transaction. GitHub repository for this demo project : https://bit.ly/33KTJAu.
Sub-topics discussed :
In Visual Studio 2019, Go to File > New > Project (Ctrl + Shift + N).
From new project window, Select Asp.Net Core Web Application_._
Once you provide the project name and location. Select Web Application(Model-View-Controller) and uncheck HTTPS Configuration. Above steps will create a brand new ASP.NET Core MVC project.
Let’s create a database for this application using Entity Framework Core. For that we’ve to install corresponding NuGet Packages. Right click on project from solution explorer, select Manage NuGet Packages_,_ From browse tab, install following 3 packages.
Now let’s define DB model class file – /Models/TransactionModel.cs.
public class TransactionModel
{
[Key]
public int TransactionId { get; set; }
[Column(TypeName ="nvarchar(12)")]
[DisplayName("Account Number")]
[Required(ErrorMessage ="This Field is required.")]
[MaxLength(12,ErrorMessage ="Maximum 12 characters only")]
public string AccountNumber { get; set; }
[Column(TypeName ="nvarchar(100)")]
[DisplayName("Beneficiary Name")]
[Required(ErrorMessage = "This Field is required.")]
public string BeneficiaryName { get; set; }
[Column(TypeName ="nvarchar(100)")]
[DisplayName("Bank Name")]
[Required(ErrorMessage = "This Field is required.")]
public string BankName { get; set; }
[Column(TypeName ="nvarchar(11)")]
[DisplayName("SWIFT Code")]
[Required(ErrorMessage = "This Field is required.")]
[MaxLength(11)]
public string SWIFTCode { get; set; }
[DisplayName("Amount")]
[Required(ErrorMessage = "This Field is required.")]
public int Amount { get; set; }
[DisplayFormat(DataFormatString = "{0:MM/dd/yyyy}")]
public DateTime Date { get; set; }
}
C#Copy
Here we’ve defined model properties for the transaction with proper validation. Now let’s define DbContextclass for EF Core.
#asp.net core article #asp.net core #add loading spinner in asp.net core #asp.net core crud without reloading #asp.net core jquery ajax form #asp.net core modal dialog #asp.net core mvc crud using jquery ajax #asp.net core mvc with jquery and ajax #asp.net core popup window #bootstrap modal popup in asp.net core mvc. bootstrap modal popup in asp.net core #delete and viewall in asp.net core #jquery ajax - insert #jquery ajax form post #modal popup dialog in asp.net core #no direct access action method #update #validation in modal popup
1662107520
Superdom
You have dom
. It has all the DOM virtually within it. Use that power:
// Fetch all the page links
let links = dom.a.href;
// Links open in a new tab
dom.a.target = '_blank';
Only for modern browsers
Simply use the CDN via unpkg.com:
<script src="https://unpkg.com/superdom@1"></script>
Or use npm or bower:
npm|bower install superdom --save
It always returns an array with the matched elements. Get all the elements that match the selector:
// Simple element selector into an array
let allLinks = dom.a;
// Loop straight on the selection
dom.a.forEach(link => { ... });
// Combined selector
let importantLinks = dom['a.important'];
There are also some predetermined elements, such as id
, class
and attr
:
// Select HTML Elements by id:
let main = dom.id.main;
// by class:
let buttons = dom.class.button;
// or by attribute:
let targeted = dom.attr.target;
let targeted = dom.attr['target="_blank"'];
Use it as a function or a tagged template literal to generate DOM fragments:
// Not a typo; tagged template literals
let link = dom`<a href="https://google.com/">Google</a>`;
// It is the same as
let link = dom('<a href="https://google.com/">Google</a>');
Delete a piece of the DOM
// Delete all of the elements with the class .google
delete dom.class.google; // Is this an ad-block rule?
You can easily manipulate attributes right from the dom
node. There are some aliases that share the syntax of the attributes such as html
and text
(aliases for innerHTML
and textContent
). There are others that travel through the dom such as parent
(alias for parentNode) and children
. Finally, class
behaves differently as explained below.
The fetching will always return an array with the element for each of the matched nodes (or undefined if not there):
// Retrieve all the urls from the page
let urls = dom.a.href; // #attr-list
// ['https://google.com', 'https://facebook.com/', ...]
// Get an array of the h2 contents (alias of innerHTML)
let h2s = dom.h2.html; // #attr-alias
// ['Level 2 header', 'Another level 2 header', ...]
// Get whether any of the attributes has the value "_blank"
let hasBlank = dom.class.cta.target._blank; // #attr-value
// true/false
You also use these:
innerHTML
): retrieve a list of the htmlstextContent
): retrieve a list of the htmlsparentNode
): travel up one level// Set target="_blank" to all links
dom.a.target = '_blank'; // #attr-set
dom.class.tableofcontents.html = `
<ul class="tableofcontents">
${dom.h2.map(h2 => `
<li>
<a href="#${h2.id}">
${h2.innerHTML}
</a>
</li>
`).join('')}
</ul>
`;
To delete an attribute use the delete
keyword:
// Remove all urls from the page
delete dom.a.href;
// Remove all ids
delete dom.a.id;
It provides an easy way to manipulate the classes.
To retrieve whether a particular class is present or not:
// Get an array with true/false for a single class
let isTest = dom.a.class.test; // #class-one
For a general method to retrieve all classes you can do:
// Get a list of the classes of each matched element
let arrays = dom.a.class; // #class-arrays
// [['important'], ['button', 'cta'], ...]
// If you want a plain list with all of the classes:
let flatten = dom.a.class._flat; // #class-flat
// ['important', 'button', 'cta', ...]
// And if you just want an string with space-separated classes:
let text = dom.a.class._text; // #class-text
// 'important button cta ...'
// Add the class 'test' (different ways)
dom.a.class.test = true; // #class-make-true
dom.a.class = 'test'; // #class-push
// Remove the class 'test'
dom.a.class.test = false; // #class-make-false
Did we say it returns a simple array?
dom.a.forEach(link => link.innerHTML = 'I am a link');
But what an interesting array it is; indeed we are also proxy'ing it so you can manipulate its sub-elements straight from the selector:
// Replace all of the link's html with 'I am a link'
dom.a.html = 'I am a link';
Of course we might want to manipulate them dynamically depending on the current value. Just pass it a function:
// Append ' ^_^' to all of the links in the page
dom.a.html = html => html + ' ^_^';
// Same as this:
dom.a.forEach(link => link.innerHTML = link.innerHTML + ' ^_^');
Note: this won't work
dom.a.html += ' ^_^';
for more than 1 match (for reasons)
Or get into genetics to manipulate the attributes:
dom.a.attr.target = '_blank';
// Only to external sites:
let isOwnPage = el => /^https?\:\/\/mypage\.com/.test(el.getAttribute('href'));
dom.a.attr.target = (prev, i, element) => isOwnPage(element) ? '' : '_blank';
You can also handle and trigger events:
// Handle click events for all <a>
dom.a.on.click = e => ...;
// Trigger click event for all <a>
dom.a.trigger.click;
We are using Jest as a Grunt task for testing. Install Jest and run in the terminal:
grunt watch
Author: franciscop
Source Code: https://github.com/franciscop/superdom
License: MIT license
1597336320
I’ve written several articles about dependency injection with .NET Core. With changes since .NET Core 3, an update is necessary. This is an article of a services taking advantage of the Host class.
In the first article of this series, dependency injection is introduced, and I’m showing how a dependency injection container can be created with the Host class.
#.net core #dependency injection #dotnet #dotnetcore #.net
1656151740
Flutter Console Coverage Test
This small dart tools is used to generate Flutter Coverage Test report to console
Add a line like this to your package's pubspec.yaml (and run an implicit flutter pub get):
dev_dependencies:
test_cov_console: ^0.2.2
flutter pub get
Running "flutter pub get" in coverage... 0.5s
flutter test --coverage
00:02 +1: All tests passed!
flutter pub run test_cov_console
---------------------------------------------|---------|---------|---------|-------------------|
File |% Branch | % Funcs | % Lines | Uncovered Line #s |
---------------------------------------------|---------|---------|---------|-------------------|
lib/src/ | | | | |
print_cov.dart | 100.00 | 100.00 | 88.37 |...,149,205,206,207|
print_cov_constants.dart | 0.00 | 0.00 | 0.00 | no unit testing|
lib/ | | | | |
test_cov_console.dart | 0.00 | 0.00 | 0.00 | no unit testing|
---------------------------------------------|---------|---------|---------|-------------------|
All files with unit testing | 100.00 | 100.00 | 88.37 | |
---------------------------------------------|---------|---------|---------|-------------------|
If not given a FILE, "coverage/lcov.info" will be used.
-f, --file=<FILE> The target lcov.info file to be reported
-e, --exclude=<STRING1,STRING2,...> A list of contains string for files without unit testing
to be excluded from report
-l, --line It will print Lines & Uncovered Lines only
Branch & Functions coverage percentage will not be printed
-i, --ignore It will not print any file without unit testing
-m, --multi Report from multiple lcov.info files
-c, --csv Output to CSV file
-o, --output=<CSV-FILE> Full path of output CSV file
If not given, "coverage/test_cov_console.csv" will be used
-t, --total Print only the total coverage
Note: it will ignore all other option (if any), except -m
-p, --pass=<MINIMUM> Print only the whether total coverage is passed MINIMUM value or not
If the value >= MINIMUM, it will print PASSED, otherwise FAILED
Note: it will ignore all other option (if any), except -m
-h, --help Show this help
flutter pub run test_cov_console --file=coverage/lcov.info --exclude=_constants,_mock
---------------------------------------------|---------|---------|---------|-------------------|
File |% Branch | % Funcs | % Lines | Uncovered Line #s |
---------------------------------------------|---------|---------|---------|-------------------|
lib/src/ | | | | |
print_cov.dart | 100.00 | 100.00 | 88.37 |...,149,205,206,207|
lib/ | | | | |
test_cov_console.dart | 0.00 | 0.00 | 0.00 | no unit testing|
---------------------------------------------|---------|---------|---------|-------------------|
All files with unit testing | 100.00 | 100.00 | 88.37 | |
---------------------------------------------|---------|---------|---------|-------------------|
It support to run for multiple lcov.info files with the followings directory structures:
1. No root module
<root>/<module_a>
<root>/<module_a>/coverage/lcov.info
<root>/<module_a>/lib/src
<root>/<module_b>
<root>/<module_b>/coverage/lcov.info
<root>/<module_b>/lib/src
...
2. With root module
<root>/coverage/lcov.info
<root>/lib/src
<root>/<module_a>
<root>/<module_a>/coverage/lcov.info
<root>/<module_a>/lib/src
<root>/<module_b>
<root>/<module_b>/coverage/lcov.info
<root>/<module_b>/lib/src
...
You must run test_cov_console on <root> dir, and the report would be grouped by module, here is
the sample output for directory structure 'with root module':
flutter pub run test_cov_console --file=coverage/lcov.info --exclude=_constants,_mock --multi
---------------------------------------------|---------|---------|---------|-------------------|
File |% Branch | % Funcs | % Lines | Uncovered Line #s |
---------------------------------------------|---------|---------|---------|-------------------|
lib/src/ | | | | |
print_cov.dart | 100.00 | 100.00 | 88.37 |...,149,205,206,207|
lib/ | | | | |
test_cov_console.dart | 0.00 | 0.00 | 0.00 | no unit testing|
---------------------------------------------|---------|---------|---------|-------------------|
All files with unit testing | 100.00 | 100.00 | 88.37 | |
---------------------------------------------|---------|---------|---------|-------------------|
---------------------------------------------|---------|---------|---------|-------------------|
File - module_a - |% Branch | % Funcs | % Lines | Uncovered Line #s |
---------------------------------------------|---------|---------|---------|-------------------|
lib/src/ | | | | |
print_cov.dart | 100.00 | 100.00 | 88.37 |...,149,205,206,207|
lib/ | | | | |
test_cov_console.dart | 0.00 | 0.00 | 0.00 | no unit testing|
---------------------------------------------|---------|---------|---------|-------------------|
All files with unit testing | 100.00 | 100.00 | 88.37 | |
---------------------------------------------|---------|---------|---------|-------------------|
---------------------------------------------|---------|---------|---------|-------------------|
File - module_b - |% Branch | % Funcs | % Lines | Uncovered Line #s |
---------------------------------------------|---------|---------|---------|-------------------|
lib/src/ | | | | |
print_cov.dart | 100.00 | 100.00 | 88.37 |...,149,205,206,207|
lib/ | | | | |
test_cov_console.dart | 0.00 | 0.00 | 0.00 | no unit testing|
---------------------------------------------|---------|---------|---------|-------------------|
All files with unit testing | 100.00 | 100.00 | 88.37 | |
---------------------------------------------|---------|---------|---------|-------------------|
flutter pub run test_cov_console -c --output=coverage/test_coverage.csv
#### sample CSV output file:
File,% Branch,% Funcs,% Lines,Uncovered Line #s
lib/,,,,
test_cov_console.dart,0.00,0.00,0.00,no unit testing
lib/src/,,,,
parser.dart,100.00,100.00,97.22,"97"
parser_constants.dart,100.00,100.00,100.00,""
print_cov.dart,100.00,100.00,82.91,"29,49,51,52,171,174,177,180,183,184,185,186,187,188,279,324,325,387,388,389,390,391,392,393,394,395,398"
print_cov_constants.dart,0.00,0.00,0.00,no unit testing
All files with unit testing,100.00,100.00,86.07,""
You can install the package from the command line:
dart pub global activate test_cov_console
The package has the following executables:
$ test_cov_console
Run this command:
With Dart:
$ dart pub add test_cov_console
With Flutter:
$ flutter pub add test_cov_console
This will add a line like this to your package's pubspec.yaml (and run an implicit dart pub get
):
dependencies:
test_cov_console: ^0.2.2
Alternatively, your editor might support dart pub get
or flutter pub get
. Check the docs for your editor to learn more.
Now in your Dart code, you can use:
import 'package:test_cov_console/test_cov_console.dart';
example/lib/main.dart
import 'package:flutter/material.dart';
void main() {
runApp(MyApp());
}
class MyApp extends StatelessWidget {
// This widget is the root of your application.
@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Flutter Demo',
theme: ThemeData(
// This is the theme of your application.
//
// Try running your application with "flutter run". You'll see the
// application has a blue toolbar. Then, without quitting the app, try
// changing the primarySwatch below to Colors.green and then invoke
// "hot reload" (press "r" in the console where you ran "flutter run",
// or simply save your changes to "hot reload" in a Flutter IDE).
// Notice that the counter didn't reset back to zero; the application
// is not restarted.
primarySwatch: Colors.blue,
// This makes the visual density adapt to the platform that you run
// the app on. For desktop platforms, the controls will be smaller and
// closer together (more dense) than on mobile platforms.
visualDensity: VisualDensity.adaptivePlatformDensity,
),
home: MyHomePage(title: 'Flutter Demo Home Page'),
);
}
}
class MyHomePage extends StatefulWidget {
MyHomePage({Key? key, required this.title}) : super(key: key);
// This widget is the home page of your application. It is stateful, meaning
// that it has a State object (defined below) that contains fields that affect
// how it looks.
// This class is the configuration for the state. It holds the values (in this
// case the title) provided by the parent (in this case the App widget) and
// used by the build method of the State. Fields in a Widget subclass are
// always marked "final".
final String title;
@override
_MyHomePageState createState() => _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> {
int _counter = 0;
void _incrementCounter() {
setState(() {
// This call to setState tells the Flutter framework that something has
// changed in this State, which causes it to rerun the build method below
// so that the display can reflect the updated values. If we changed
// _counter without calling setState(), then the build method would not be
// called again, and so nothing would appear to happen.
_counter++;
});
}
@override
Widget build(BuildContext context) {
// This method is rerun every time setState is called, for instance as done
// by the _incrementCounter method above.
//
// The Flutter framework has been optimized to make rerunning build methods
// fast, so that you can just rebuild anything that needs updating rather
// than having to individually change instances of widgets.
return Scaffold(
appBar: AppBar(
// Here we take the value from the MyHomePage object that was created by
// the App.build method, and use it to set our appbar title.
title: Text(widget.title),
),
body: Center(
// Center is a layout widget. It takes a single child and positions it
// in the middle of the parent.
child: Column(
// Column is also a layout widget. It takes a list of children and
// arranges them vertically. By default, it sizes itself to fit its
// children horizontally, and tries to be as tall as its parent.
//
// Invoke "debug painting" (press "p" in the console, choose the
// "Toggle Debug Paint" action from the Flutter Inspector in Android
// Studio, or the "Toggle Debug Paint" command in Visual Studio Code)
// to see the wireframe for each widget.
//
// Column has various properties to control how it sizes itself and
// how it positions its children. Here we use mainAxisAlignment to
// center the children vertically; the main axis here is the vertical
// axis because Columns are vertical (the cross axis would be
// horizontal).
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
Text(
'You have pushed the button this many times:',
),
Text(
'$_counter',
style: Theme.of(context).textTheme.headline4,
),
],
),
),
floatingActionButton: FloatingActionButton(
onPressed: _incrementCounter,
tooltip: 'Increment',
child: Icon(Icons.add),
), // This trailing comma makes auto-formatting nicer for build methods.
);
}
}
Author: DigitalKatalis
Source Code: https://github.com/DigitalKatalis/test_cov_console
License: BSD-3-Clause license
1591888061
I’ve lately been feeling my way around getting an actual, production-ready ASP.NET Core app developed, and one of the features I’ve really been digging (one of many) is native support for Dependency Injection (DI). DI is huge in modern web apps, so making it the default for ASP.NET
#asp.net core #asp.net core dependency injection #dependency #injection #programming