Hello Readers and Friends! I am happy to share some of my codes and applications. Today, I am discussing about some of the basic things in C# programming that is Checkbox Control in Windows application.

Step 1: Open Visual Studio (any version you have installed). I have VS2012,

open

Step 2: Select Windows form application and enter the name of application, then click OK.

window form application

Step 3: Design your windows application, like drag and drop the checkbox, buttons and labels, as per your requirement.

application

Step 4: The source code of my program is given below.

  1. using System;
  2. using System.Collections.Generic;
  3. using System.ComponentModel;
  4. using System.Data;
  5. using System.Drawing;
  6. using System.Linq;
  7. using System.Text;
  8. using System.Threading.Tasks;
  9. using System.Windows.Forms;
  11. namespace Checkbox_Apps
  12. {
  13. public partial class Form1 : Form
  14. {
  15. public Form1()
  16. {
  17. InitializeComponent();
  18. }
  20. private void checkBox1_CheckedChanged(object sender, EventArgs e)
  21. {
  22. checkBox1.ThreeState = true;
  23. }
  25. private void label1_Click(object sender, EventArgs e)
  26. {
  30. }
  32. private void checkBox2_CheckedChanged(object sender, EventArgs e)
  33. {
  34. checkBox2.ThreeState = true;
  36. }
  38. private void checkBox3_CheckedChanged(object sender, EventArgs e)
  39. {
  40. checkBox3.ThreeState = true;
  42. }
  44. private void checkBox4_CheckedChanged(object sender, EventArgs e)
  45. {
  46. checkBox4.ThreeState = true;
  48. }
  50. private void button1_Click(object sender, EventArgs e)
  51. {
  52. //string messagebox = "";
  53. if (checkBox1.Checked == true)
  54. {
  55. MessageBox.Show("Welcome to Visual Studio DownLoad Page Click Visit");
  56. System.Diagnostics.Process.Start("www.visualstudio.com");
  57. }
  58. if (checkBox2.Checked == true)
  59. {
  60. MessageBox.Show("Welcome to Dev C DownLoad Page Click Visit");
  61. System.Diagnostics.Process.Start("www.krishnasinghprogramming.blogspot.com");
  62. }
  63. if (checkBox3.Checked == true)
  64. {
  65. MessageBox.Show("Welcome to IT PROGRAMMING WORLD Page Click Visit");
  66. System.Diagnostics.Process.Start("www.krishnasinghprogramming.blogspot.com");
  67. }
  68. if (checkBox4.Checked == true)
  69. {
  70. MessageBox.Show("Welcome to CSHARPCORNER Page Click Visit");
  71. System.Diagnostics.Process.Start("www.csharpcorner.com");
  72. }
  73. }
  75. private void button2_Click(object sender, EventArgs e)
  76. {
  77. checkBox1.Checked = false;
  78. checkBox2.Checked = false;
  79. checkBox3.Checked = false;
  80. checkBox4.Checked = false;
  82. {
  83. }
  85. }
  87. private void label2_Click(object sender, EventArgs e)
  88. {
  89. label2.Text = DateTime.Now.ToShortTimeString();
  90. }
  91. }
  92. }
Step 5: The output will be as following:

Output

Thank you for reading. I hope this article proves to be helpful to you.