Random the value of textbox

Question

Attention Master, I need help.

as you can see at the top I have a form, 3 textbox with the value of 1,2,3 for example only.

and in the left side they have a list view and the button name "Generate". Now I want is If I click generate button the value of each textbox will random and display in the list box.

I hope any one can help to fix this problem, Thank you so much.

Answer 1

Hi @BgnerNprg207 , Welcome to Microsoft Q&A,

Sure, use random.Next etc. to randomly generate numbers. Just add it to the listbox.

using System;
using System.Windows.Forms;

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

         private void button1_Click(object sender, EventArgs e)
         {
             // Clear ListBox and TextBoxes
             listBox1.Items.Clear();
             textBox1.Clear();
             textBox2.Clear();
             textBox3.Clear();

             // Generate three random numbers and add them to ListBox and TextBoxes
             Random random = new Random();
             for (int i = 0; i < 3; i++)
             {
                 int randomNumber = random.Next(1, 101); // Generate a random integer between 1 and 100
                 listBox1.Items.Add(randomNumber);

                 //Display the numbers in three TextBoxes respectively
                 switch(i)
                 {
                     case 0:
                         textBox1.Text = randomNumber.ToString();
                         break;
                     case 1:
                         textBox2.Text = randomNumber.ToString();
                         break;
                     case 2:
                         textBox3.Text = randomNumber.ToString();
                         break;
                 }
             }
         }
     }
}

Best Regards,

Jiale

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