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Table of contents
1.
Introduction
2.
Design-Time
3.
Run-Time
4.
Frequently Asked Questions
4.1.
What is the use of RadioButton control?
4.2.
What is RadioButton C#?
4.3.
What is the difference between a CheckBox control and a RadioButton control?
4.4.
How do we control group form?
4.5.
What is form control?
5.
Conclusion
Last Updated: Mar 27, 2024

C# RadioButton Control

Author Alok Pandey
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Introduction

A radio button, also known as an option button, allows the user to choose one option from a list of options when paired with other RadioButton controls. When a user selects a radio button, it is checked, and all other radio buttons in that group are unchecked.

For example, choose your gender from the drop-down menu, so you'll have to choose between Male, Female, or Transgender. RadioButton is a class in C# that is found under System.Windows.Forms namespace. When you select any radio button in a set of radio buttons, you can display text, pictures, or both.

We can create a radio button by two methods

1. Design-Time

2. Run-Time

Recommended topics, Palindrome in C#, singleton design pattern in c#, and  Ienumerable vs Iqueryable

Design-Time

This is the simplest approach to constructing a RadioButton control. In this method, we create a radio button with the graphical interface of the visual studio.

Step:1- Visual Studio -> File -> New -> Project -> WindowsFormApp 

Step 2: Drag and drop the RadioButton control from the ToolBox onto the Windows form. According to your needs, a RadioButton control can be placed anywhere on the Windows form.

Step 3: Drag and drop the RadioButton control from the ToolBox onto the Windows form. According to your needs, a RadioButton control can be placed anywhere on the Windows form.

 

OUTPUT

 

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Run-Time

It's a little more difficult than the previous way. The RadioButton class is used to construct a RadioButton programmatically in this method. The steps below demonstrate how to dynamically build a RadioButton.

 

Step 1: Create a radio button with the help of the RadioButton() constructor that is provided by the RadioButton class. 

// Creating radio button
RadioButton rbtn = new RadioButton();

 

Step 2: Once the RadioButton is created, set the properties of the RadioButton provided by the RadioButton class.

// Set the AutoSize property 
rbtn.AutoSize = true;

 

// Add text in RadioButton
rbtn.Text = "India";

 

// Set the location of the RadioButton
rbtn.Location = new Point(190, 75);

 

// Set Font property 
rbtn.Font = new Font("Roboto", 12);

 

Step 3: And last add this RadioButton control to the form using Add() method.

// Add this radio button to the form
this.Controls.Add(rbtn);

 

Let's understand this through code.

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms; 

namespace WindowsFormsApp24 {
public partial class Form1 : Form {
    public Form1()
    {
        InitializeComponent();
    }

    private void RadioButton1_CheckedChanged(object sender,EventArgs e)
    {

    }

    private void Form1_Load(object sender, EventArgs e)
    {
        // Label
       Label btnl = new Label();
       btnl.AutoSize = true;
       btnl.Location = new Point(190, 75);
       btnl.Text = "Select Your Country";
       btnl.Font = new Font("Roboto", 12);
       this.Controls.Add(l);
        
      //option button & its properties
        radiobutton btn1 = new radiobutton();
        btn1. Autosize = true;
        btn1. Text = "india";
        btn1. Location = new point(190, 100);
        btn1. Font = new font("roboto", 12);
        this. Controls. Add(btn1);
 
     //option button & its properties
        radiobutton btn2 = new radiobutton();
        btn2. Autosize = true;
        btn2. Text = "america";
        btn2. Location = new point(190, 125);
        btn2. Font = new font("roboto", 12);
        this. Controls. Add(btn2);

 

   //option button & its properties
        radiobutton btn3 = new radiobutton();
        btn3. Autosize = true;
        btn3. Text = "russia";
        btn3. Location = new point(190, 150);
        btn3. Font = new font("roboto", 12);
        this. Controls. Add(btn3);
    }
  }
}

 

OUTPUT


Frequently Asked Questions

What is the use of RadioButton control?

A radio button, often known as an option button, is a graphical control element that allows users to select only one option from a collection of mutually incompatible choices. A radio button is distinguished from checkboxes by its single feature, enabling the user to choose and deselect any number of items.

What is RadioButton C#?

RadioButton is a class in C# that is found under System.Windows.Forms namespace. When you select any radio button in a set of radio buttons, you can display text, pictures, or both.

What is the difference between a CheckBox control and a RadioButton control?

Selecting elements include checkboxes and radio buttons. Checkboxes allow users to select items from a limited number of options, whereas radio buttons allow users to select exactly one item from a list of multiple options.

How do we control group form?

By surrounding form controls within the fieldset element, they can be grouped. The controls of a fieldset are then linked together. The legend element, which offers a label or description for the group, must be the first element inside the fieldset.

What is form control?

A form control is a user interface control that acts as a conduit between the user and the server.

Conclusion

In this article, we have extensively discussed C# RadioButton Control.

We hope that this blog has helped you enhance your knowledge regarding  C# RadioButton Controls and if you would like to learn more, check out our articles on  C# Dynamic TypeC# ConstructorC# Functions.

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