7 ways to improve code quality in c# using option type

Option is relatively new for imperative programming (c#, java, …) developers while it is a primitive type in some of the multiparadigm languages like java it is not yet natively supported in C#.

I think the biggest misunderstanding regarding option type came from it is similarity was the nullable type. you will find a lot of online articles presenting Option type as a safer alternative to the nullable type or as a final solution to NullReferenceException while other material defends Nullable and say that option type is not the way to go as it simply replaces NullReferenceException with MissingValueException.

Here we will show you how to use Option Type Correctly and how it will improve your code dramatically and prevent some potential bugs.

1- Force you to handle the missing value case

2- You define when it is none and when it is some

3- Execute Only When Value Exist

4- Async Support

5- Exception Handling

6- Integration With Other contracts Frameworks like Shoudly

7- It can be your entry to functional Programming

#dotnet #csharp #codeproject #c# #improve code

What is GEEK

Buddha Community

7 ways to improve code quality in c# using option type

Shubham Ankit

1655711983

How to Create Awesome Custom Radio Buttons using only HTML & CSS

In this guide, you’ll learn how to create Awesome Custom Radio Buttons using only HTML & CSS. To create Awesome Custom Radio Buttons using only HTML & CSS. First, you need to create two Files one HTML File and another one is CSS File.

1: First, create an HTML file with the name of index.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Custom Radio Buttons | Codequs</title>
    <link rel="stylesheet" href="style.css">
</head>
<body>
  <div class="wrapper">
    <div class="title">Select your option</div>
    <div class="box">
      <input type="radio" name="select" id="option-1">
      <input type="radio" name="select" id="option-2">
      <input type="radio" name="select" id="option-3">
      <input type="radio" name="select" id="option-4">
      <label for="option-1" class="option-1">
        <div class="dot"></div>
        <div class="text">Gamer</div>
      </label>
      <label for="option-2" class="option-2">
        <div class="dot"></div>
        <div class="text">YouTuber</div>
      </label>
      <label for="option-3" class="option-3">
        <div class="dot"></div>
        <div class="text">Student</div>
      </label>
      <label for="option-4" class="option-4">
        <div class="dot"></div>
        <div class="text">Developer</div>
      </label>
    </div>
  </div>

</body>
</html>

2: Second, create a CSS file with the name of style.css

@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@200;300;400;500;600;700&display=swap');
*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Poppins', sans-serif;
}
html,body{
  display: grid;
  height: 100%;
  place-items: center;
}
.wrapper{
  width: 350px;
  background: #fff;
  border-radius: 10px;
  box-shadow: 5px 5px 30px rgba(0,0,0,0.2);
}
.wrapper .title{
  color: #fff;
  line-height: 65px;
  text-align: center;
  background: #333;
  font-size: 25px;
  font-weight: 500;
  border-radius: 10px 10px 0 0;
}
.wrapper .box{
  padding: 20px 30px;
  background: #fff;
  border-radius: 10px;
}
.wrapper .box label{
  display: flex;
  height: 53px;
  width: 100%;
  align-items: center;
  border: 1px solid lightgrey;
  border-radius: 50px;
  margin: 10px 0;
  padding-left: 20px;
  cursor: default;
  transition: all 0.3s ease;
}
#option-1:checked ~ .option-1,
#option-2:checked ~ .option-2,
#option-3:checked ~ .option-3,
#option-4:checked ~ .option-4{
  background: #333;
  border-color: #333;
}
.wrapper .box label .dot{
  height: 20px;
  width: 20px;
  background: #d9d9d9;
  border-radius: 50%;
  position: relative;
  transition: all 0.3s ease;
}
#option-1:checked ~ .option-1 .dot,
#option-2:checked ~ .option-2 .dot,
#option-3:checked ~ .option-3 .dot,
#option-4:checked ~ .option-4 .dot{
  background: #fff;
}
.box label .dot::before{
  position: absolute;
  content: "";
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(2);
  width: 9px;
  height: 9px;
  border-radius: 50%;
  transition: all 0.3s ease;
}
#option-1:checked ~ .option-1 .dot::before,
#option-2:checked ~ .option-2 .dot::before,
#option-3:checked ~ .option-3 .dot::before,
#option-4:checked ~ .option-4 .dot::before{
  background: #333;
  transform: translate(-50%, -50%) scale(1);
}
.wrapper .box label .text{
  color: #333;
  font-size: 18px;
  font-weight: 400;
  padding-left: 10px;
  transition: color 0.3s ease;
}
#option-1:checked ~ .option-1 .text,
#option-2:checked ~ .option-2 .text,
#option-3:checked ~ .option-3 .text,
#option-4:checked ~ .option-4 .text{
  color: #fff;
}
.wrapper .box input[type="radio"]{
  display: none;
}

Now you’ve successfully created Awesome Custom Radio Buttons using only HTML & CSS.

#html #css

CODE VN

1655734395

Cách tạo các nút radio tùy chỉnh tuyệt vời chỉ sử dụng HTML và CSS

Trong hướng dẫn này, bạn sẽ học cách tạo các Nút radio tùy chỉnh tuyệt vời chỉ bằng HTML và CSS. Để tạo các Nút radio tùy chỉnh tuyệt vời chỉ bằng HTML và CSS. Đầu tiên, bạn cần tạo hai Tệp, một Tệp HTML và một tệp khác là Tệp CSS.

1: Đầu tiên, tạo một tệp HTML với tên là index.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Custom Radio Buttons | Codequs</title>
    <link rel="stylesheet" href="style.css">
</head>
<body>
  <div class="wrapper">
    <div class="title">Select your option</div>
    <div class="box">
      <input type="radio" name="select" id="option-1">
      <input type="radio" name="select" id="option-2">
      <input type="radio" name="select" id="option-3">
      <input type="radio" name="select" id="option-4">
      <label for="option-1" class="option-1">
        <div class="dot"></div>
        <div class="text">Gamer</div>
      </label>
      <label for="option-2" class="option-2">
        <div class="dot"></div>
        <div class="text">YouTuber</div>
      </label>
      <label for="option-3" class="option-3">
        <div class="dot"></div>
        <div class="text">Student</div>
      </label>
      <label for="option-4" class="option-4">
        <div class="dot"></div>
        <div class="text">Developer</div>
      </label>
    </div>
  </div>

</body>
</html>

2: Thứ hai, tạo một tệp CSS với tên là style.css

@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@200;300;400;500;600;700&display=swap');
*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Poppins', sans-serif;
}
html,body{
  display: grid;
  height: 100%;
  place-items: center;
}
.wrapper{
  width: 350px;
  background: #fff;
  border-radius: 10px;
  box-shadow: 5px 5px 30px rgba(0,0,0,0.2);
}
.wrapper .title{
  color: #fff;
  line-height: 65px;
  text-align: center;
  background: #333;
  font-size: 25px;
  font-weight: 500;
  border-radius: 10px 10px 0 0;
}
.wrapper .box{
  padding: 20px 30px;
  background: #fff;
  border-radius: 10px;
}
.wrapper .box label{
  display: flex;
  height: 53px;
  width: 100%;
  align-items: center;
  border: 1px solid lightgrey;
  border-radius: 50px;
  margin: 10px 0;
  padding-left: 20px;
  cursor: default;
  transition: all 0.3s ease;
}
#option-1:checked ~ .option-1,
#option-2:checked ~ .option-2,
#option-3:checked ~ .option-3,
#option-4:checked ~ .option-4{
  background: #333;
  border-color: #333;
}
.wrapper .box label .dot{
  height: 20px;
  width: 20px;
  background: #d9d9d9;
  border-radius: 50%;
  position: relative;
  transition: all 0.3s ease;
}
#option-1:checked ~ .option-1 .dot,
#option-2:checked ~ .option-2 .dot,
#option-3:checked ~ .option-3 .dot,
#option-4:checked ~ .option-4 .dot{
  background: #fff;
}
.box label .dot::before{
  position: absolute;
  content: "";
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(2);
  width: 9px;
  height: 9px;
  border-radius: 50%;
  transition: all 0.3s ease;
}
#option-1:checked ~ .option-1 .dot::before,
#option-2:checked ~ .option-2 .dot::before,
#option-3:checked ~ .option-3 .dot::before,
#option-4:checked ~ .option-4 .dot::before{
  background: #333;
  transform: translate(-50%, -50%) scale(1);
}
.wrapper .box label .text{
  color: #333;
  font-size: 18px;
  font-weight: 400;
  padding-left: 10px;
  transition: color 0.3s ease;
}
#option-1:checked ~ .option-1 .text,
#option-2:checked ~ .option-2 .text,
#option-3:checked ~ .option-3 .text,
#option-4:checked ~ .option-4 .text{
  color: #fff;
}
.wrapper .box input[type="radio"]{
  display: none;
}

Bây giờ bạn đã tạo thành công các Nút radio tùy chỉnh tuyệt vời chỉ bằng HTML và CSS.

Iñigo Martínez

1655715965

Cómo crear impresionantes botones de radio personalizados usando solo HTML y CSS

En esta guía, aprenderá cómo crear impresionantes botones de radio personalizados usando solo HTML y CSS. Para crear impresionantes botones de radio personalizados usando solo HTML y CSS. Primero, debe crear dos archivos, un archivo HTML y otro es un archivo CSS.

1: Primero, cree un archivo HTML con el nombre de index.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Custom Radio Buttons | Codequs</title>
    <link rel="stylesheet" href="style.css">
</head>
<body>
  <div class="wrapper">
    <div class="title">Select your option</div>
    <div class="box">
      <input type="radio" name="select" id="option-1">
      <input type="radio" name="select" id="option-2">
      <input type="radio" name="select" id="option-3">
      <input type="radio" name="select" id="option-4">
      <label for="option-1" class="option-1">
        <div class="dot"></div>
        <div class="text">Gamer</div>
      </label>
      <label for="option-2" class="option-2">
        <div class="dot"></div>
        <div class="text">YouTuber</div>
      </label>
      <label for="option-3" class="option-3">
        <div class="dot"></div>
        <div class="text">Student</div>
      </label>
      <label for="option-4" class="option-4">
        <div class="dot"></div>
        <div class="text">Developer</div>
      </label>
    </div>
  </div>

</body>
</html>

2: Segundo, crea un archivo CSS con el nombre de style.css

@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@200;300;400;500;600;700&display=swap');
*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Poppins', sans-serif;
}
html,body{
  display: grid;
  height: 100%;
  place-items: center;
}
.wrapper{
  width: 350px;
  background: #fff;
  border-radius: 10px;
  box-shadow: 5px 5px 30px rgba(0,0,0,0.2);
}
.wrapper .title{
  color: #fff;
  line-height: 65px;
  text-align: center;
  background: #333;
  font-size: 25px;
  font-weight: 500;
  border-radius: 10px 10px 0 0;
}
.wrapper .box{
  padding: 20px 30px;
  background: #fff;
  border-radius: 10px;
}
.wrapper .box label{
  display: flex;
  height: 53px;
  width: 100%;
  align-items: center;
  border: 1px solid lightgrey;
  border-radius: 50px;
  margin: 10px 0;
  padding-left: 20px;
  cursor: default;
  transition: all 0.3s ease;
}
#option-1:checked ~ .option-1,
#option-2:checked ~ .option-2,
#option-3:checked ~ .option-3,
#option-4:checked ~ .option-4{
  background: #333;
  border-color: #333;
}
.wrapper .box label .dot{
  height: 20px;
  width: 20px;
  background: #d9d9d9;
  border-radius: 50%;
  position: relative;
  transition: all 0.3s ease;
}
#option-1:checked ~ .option-1 .dot,
#option-2:checked ~ .option-2 .dot,
#option-3:checked ~ .option-3 .dot,
#option-4:checked ~ .option-4 .dot{
  background: #fff;
}
.box label .dot::before{
  position: absolute;
  content: "";
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(2);
  width: 9px;
  height: 9px;
  border-radius: 50%;
  transition: all 0.3s ease;
}
#option-1:checked ~ .option-1 .dot::before,
#option-2:checked ~ .option-2 .dot::before,
#option-3:checked ~ .option-3 .dot::before,
#option-4:checked ~ .option-4 .dot::before{
  background: #333;
  transform: translate(-50%, -50%) scale(1);
}
.wrapper .box label .text{
  color: #333;
  font-size: 18px;
  font-weight: 400;
  padding-left: 10px;
  transition: color 0.3s ease;
}
#option-1:checked ~ .option-1 .text,
#option-2:checked ~ .option-2 .text,
#option-3:checked ~ .option-3 .text,
#option-4:checked ~ .option-4 .text{
  color: #fff;
}
.wrapper .box input[type="radio"]{
  display: none;
}

Ahora ha creado con éxito impresionantes botones de radio personalizados usando solo HTML y CSS.

中條美冬

1655723340

HTMLとCSSのみを使用して素晴らしいカスタムラジオボタンを作成する方法

このガイドでは、HTMLとCSSのみを使用して素晴らしいカスタムラジオボタンを作成する方法を学習します。HTMLとCSSのみを使用して素晴らしいカスタムラジオボタンを作成します。まず、2つのファイルを作成する必要があります。1つはHTMLファイルで、もう1つはCSSファイルです。

1：まず、index.htmlという名前のHTMLファイルを作成します

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Custom Radio Buttons | Codequs</title>
    <link rel="stylesheet" href="style.css">
</head>
<body>
  <div class="wrapper">
    <div class="title">Select your option</div>
    <div class="box">
      <input type="radio" name="select" id="option-1">
      <input type="radio" name="select" id="option-2">
      <input type="radio" name="select" id="option-3">
      <input type="radio" name="select" id="option-4">
      <label for="option-1" class="option-1">
        <div class="dot"></div>
        <div class="text">Gamer</div>
      </label>
      <label for="option-2" class="option-2">
        <div class="dot"></div>
        <div class="text">YouTuber</div>
      </label>
      <label for="option-3" class="option-3">
        <div class="dot"></div>
        <div class="text">Student</div>
      </label>
      <label for="option-4" class="option-4">
        <div class="dot"></div>
        <div class="text">Developer</div>
      </label>
    </div>
  </div>

</body>
</html>

2：次に、style.cssという名前のCSSファイルを作成します

@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@200;300;400;500;600;700&display=swap');
*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Poppins', sans-serif;
}
html,body{
  display: grid;
  height: 100%;
  place-items: center;
}
.wrapper{
  width: 350px;
  background: #fff;
  border-radius: 10px;
  box-shadow: 5px 5px 30px rgba(0,0,0,0.2);
}
.wrapper .title{
  color: #fff;
  line-height: 65px;
  text-align: center;
  background: #333;
  font-size: 25px;
  font-weight: 500;
  border-radius: 10px 10px 0 0;
}
.wrapper .box{
  padding: 20px 30px;
  background: #fff;
  border-radius: 10px;
}
.wrapper .box label{
  display: flex;
  height: 53px;
  width: 100%;
  align-items: center;
  border: 1px solid lightgrey;
  border-radius: 50px;
  margin: 10px 0;
  padding-left: 20px;
  cursor: default;
  transition: all 0.3s ease;
}
#option-1:checked ~ .option-1,
#option-2:checked ~ .option-2,
#option-3:checked ~ .option-3,
#option-4:checked ~ .option-4{
  background: #333;
  border-color: #333;
}
.wrapper .box label .dot{
  height: 20px;
  width: 20px;
  background: #d9d9d9;
  border-radius: 50%;
  position: relative;
  transition: all 0.3s ease;
}
#option-1:checked ~ .option-1 .dot,
#option-2:checked ~ .option-2 .dot,
#option-3:checked ~ .option-3 .dot,
#option-4:checked ~ .option-4 .dot{
  background: #fff;
}
.box label .dot::before{
  position: absolute;
  content: "";
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(2);
  width: 9px;
  height: 9px;
  border-radius: 50%;
  transition: all 0.3s ease;
}
#option-1:checked ~ .option-1 .dot::before,
#option-2:checked ~ .option-2 .dot::before,
#option-3:checked ~ .option-3 .dot::before,
#option-4:checked ~ .option-4 .dot::before{
  background: #333;
  transform: translate(-50%, -50%) scale(1);
}
.wrapper .box label .text{
  color: #333;
  font-size: 18px;
  font-weight: 400;
  padding-left: 10px;
  transition: color 0.3s ease;
}
#option-1:checked ~ .option-1 .text,
#option-2:checked ~ .option-2 .text,
#option-3:checked ~ .option-3 .text,
#option-4:checked ~ .option-4 .text{
  color: #fff;
}
.wrapper .box input[type="radio"]{
  display: none;
}

これで、HTMLとCSSのみを使用して素晴らしいカスタムラジオボタンを正常に作成できました。

Alexander Karachunov

1655726968

Как создать потрясающие настраиваемые радиокнопки, используя только HTML и CSS

В этом руководстве вы узнаете, как создавать потрясающие настраиваемые радиокнопки, используя только HTML и CSS. Чтобы создать удивительные пользовательские радиокнопки, используя только HTML и CSS. Во-первых, вам нужно создать два файла: один файл HTML, а другой — файл CSS.

1: Сначала создайте файл HTML с именем index.html.

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Custom Radio Buttons | Codequs</title>
    <link rel="stylesheet" href="style.css">
</head>
<body>
  <div class="wrapper">
    <div class="title">Select your option</div>
    <div class="box">
      <input type="radio" name="select" id="option-1">
      <input type="radio" name="select" id="option-2">
      <input type="radio" name="select" id="option-3">
      <input type="radio" name="select" id="option-4">
      <label for="option-1" class="option-1">
        <div class="dot"></div>
        <div class="text">Gamer</div>
      </label>
      <label for="option-2" class="option-2">
        <div class="dot"></div>
        <div class="text">YouTuber</div>
      </label>
      <label for="option-3" class="option-3">
        <div class="dot"></div>
        <div class="text">Student</div>
      </label>
      <label for="option-4" class="option-4">
        <div class="dot"></div>
        <div class="text">Developer</div>
      </label>
    </div>
  </div>

</body>
</html>

2: Во-вторых, создайте файл CSS с именем style.css.

@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@200;300;400;500;600;700&display=swap');
*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Poppins', sans-serif;
}
html,body{
  display: grid;
  height: 100%;
  place-items: center;
}
.wrapper{
  width: 350px;
  background: #fff;
  border-radius: 10px;
  box-shadow: 5px 5px 30px rgba(0,0,0,0.2);
}
.wrapper .title{
  color: #fff;
  line-height: 65px;
  text-align: center;
  background: #333;
  font-size: 25px;
  font-weight: 500;
  border-radius: 10px 10px 0 0;
}
.wrapper .box{
  padding: 20px 30px;
  background: #fff;
  border-radius: 10px;
}
.wrapper .box label{
  display: flex;
  height: 53px;
  width: 100%;
  align-items: center;
  border: 1px solid lightgrey;
  border-radius: 50px;
  margin: 10px 0;
  padding-left: 20px;
  cursor: default;
  transition: all 0.3s ease;
}
#option-1:checked ~ .option-1,
#option-2:checked ~ .option-2,
#option-3:checked ~ .option-3,
#option-4:checked ~ .option-4{
  background: #333;
  border-color: #333;
}
.wrapper .box label .dot{
  height: 20px;
  width: 20px;
  background: #d9d9d9;
  border-radius: 50%;
  position: relative;
  transition: all 0.3s ease;
}
#option-1:checked ~ .option-1 .dot,
#option-2:checked ~ .option-2 .dot,
#option-3:checked ~ .option-3 .dot,
#option-4:checked ~ .option-4 .dot{
  background: #fff;
}
.box label .dot::before{
  position: absolute;
  content: "";
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(2);
  width: 9px;
  height: 9px;
  border-radius: 50%;
  transition: all 0.3s ease;
}
#option-1:checked ~ .option-1 .dot::before,
#option-2:checked ~ .option-2 .dot::before,
#option-3:checked ~ .option-3 .dot::before,
#option-4:checked ~ .option-4 .dot::before{
  background: #333;
  transform: translate(-50%, -50%) scale(1);
}
.wrapper .box label .text{
  color: #333;
  font-size: 18px;
  font-weight: 400;
  padding-left: 10px;
  transition: color 0.3s ease;
}
#option-1:checked ~ .option-1 .text,
#option-2:checked ~ .option-2 .text,
#option-3:checked ~ .option-3 .text,
#option-4:checked ~ .option-4 .text{
  color: #fff;
}
.wrapper .box input[type="radio"]{
  display: none;
}

Теперь вы успешно создали потрясающие настраиваемые радиокнопки, используя только HTML и CSS.