App Services – Page 29 – My Point of View

How to use the new Bootstrap Icons v1.10 web font

With the release of Bootstrap Icons v1.10, there is now an easy-to-use web font. Here’s how you can use the new web font in your web pages.

Step 1 – Download the Bootstrap Icons files

Go to icons.getbootstrap.com and download the latest release. There is a download button at the top-right corner of the page.

Step 2 – Install the Bootstrap Icons files

To use the web font on your web site you will need to extract a few files from the ZIP file.

From the fonts folder you will need bootstrap-icons.css and the fonts folder (the one inside the first fonts folder) with the bootstrap-icons.woff and bootstrap-icons.woff2 files.

Copy the CSS file and fonts folder to your website. You can copy the files to your web root folder but typically you would copy them to a folder that contains your other CSS files.

Step 3 – Include the Bootstrap Icons CSS file in your web pages

To be able to use the fonts in your web pages you will need to include the bootstrap-icons CSS file in your HEAD section of your HTML. How this is done will vary on the type of website. If you have simple HTML pages then you would need to add this to each page where you want to use the web font. If you are using a content management system like WordPress then this can be done in a template. If you are not sure use Google to search for how to add a CSS file to your CMS.

To include the CSS file you would add something like this:

<link href="bootstrap-icons.css" rel="stylesheet">

(CSS file is in same folder as the HTML document)

<link href="/bootstrap-icons.css" rel="stylesheet">

(CSS file is in your web root folder)

<link href="/css/bootstrap-icons.css" rel="stylesheet">

(CSS file is in your CSS folder)

Step 4 – Using the Bootstrap Icons web font

To include one of the icons you simply add the web font code that you can find on the Bootstrap Icons website.

For example:

<i class="bi-alarm"></i>

Each icon has it’s own class (eg. bi-alarm), and you can find these by clicking an icon on the Bootstrap Icons website.

Full example:

<!doctype html>
<html lang="en">
<head>
	<meta charset="utf-8">
	<meta name="viewport" content="width=device-width, initial-scale=1">
	<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.0.0-beta1/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-giJF6kkoqNQ00vy+HMDP7azOuL0xtbfIcaT9wjKHr8RbDVddVHyTfAAsrekwKmP1" crossorigin="anonymous">
	<link href="bootstrap-icons.css" rel="stylesheet">
	<title>Hello, world!</title>
</head>
<body>
	<div class="container">
		<h1>Bootstrap Icons v1.2 Example</h1>
		<p>
			<i class="bi-alarm"></i>
		</p>
	</div>
	<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.0.0-beta1/dist/js/bootstrap.bundle.min.js" integrity="sha384-ygbV9kiqUc6oa4msXn9868pTtWMgiQaeYH7/t7LECLbyPA2x65Kgf80OJFdroafW" crossorigin="anonymous"></script>
</body>
</html>

Unit testing in C# using Moq Framework

Unit testing is a powerful way to ensure that your code works as intended. It’s a great way to combat the common “works on my machine” problem.

Unordered list without bullets

You can remove bullets by setting the list-style-type to none on the CSS for the parent element (typically a <ul>), for example:

ul {
  list-style-type: none;
}

You might also want to add padding: 0 and margin: 0 to that if you want to remove indentation as well.

See Lis tutorial for a great walkthrough of list formatting techniques.

For more info, continue reading on Stack Overflow

For more info on CSS box model, continue reading on W3 schools

Difference between an array and an object in JavaScript

What’s the difference between “{}” and “[]” while declaring a JavaScript array? Normally I declare like

var a = [];

What is the meaning of declaring the array as var a = {}

Some of the meaning and explanation between [] and {} are;

var a = {}; is an object-key-value pairs. var a = []; is an array-values stored in sequential indexes. We are not creating array when we are using {}, we are creating object

For more info, continue reading on Stack Overflow

Dapper Transaction

Dapper provides different ways to work with transactions. The most common way is to use the BeginTransaction method available on the IDbConnection interface. That will return an instance of IDbTransaction, which you can use with Execute and Query methods to add, remove and modify data in your database tables.

// Open the connection and start a transaction: 
using (var connection = new SqlConnection(connectionString))
{ 
    connection.Open();
	
    using (var tran = connection.BeginTransaction()) 
    { 
        // Execute your queries here
		
        tran.Commit(); //Or rollback 
    }
}

You can also use the TransactionScope class, which provides a much simpler way to deal with transactions:

// Open the connection and start a transaction: 
using (var scope = new TransactionScope()) 
{ 
    // Execute your queries here
	
    scope.Complete(); //Or it will automatically rollback 
}

While using Dapper transaction, i have started getting this error;

"A TransactionScope must be disposed on the same thread that it was created."

Looking around, I figured this out;

In .NET Framework 4.5.1, there is a set of new constructors for TransactionScope that take a TransactionScopeAsyncFlowOption parameter.

According to the MSDN, it enables transaction flow across thread continuations. Here is an example;

using (var tx = new TransactionScope(TransactionScopeAsyncFlowOption.Enabled))
{
    await SomeMethodInTheCallStackAsync()
        .ConfigureAwait(false);

    tx.Complete();
}

For complete detail, read this article.

Reference

https://www.learndapper.com/misc/transaction