Question

How can i add the data to listbox1 by pressing the Save button.I have done the code of listbox1 but not of the button.Below is the code

 namespace WindowsFormsApplication1 
  {
     public partial class Form1 : Form
     {
         public Form1()
         {
             InitializeComponent();
         }

         private void button1_Click(object sender, EventArgs e)
         {

         }

         private void listBox1_SelectedIndexChanged(object sender, EventArgs e)
         {
             listBox1.Items.Add(textBox1.Text);
             listBox1.Items.Add(textBox2.Text);
             listBox1.Items.Add(textBox3.Text);
             listBox1.Items.Add(textBox4.Text);
         }
     } 
  }

Answer 1

If you want on button click the same thing to happen as on SelectedIndexChanged(), you just copy the code.

private void button1_Click(object sender, EventArgs e)
{
    listBox1.Items.Add(textBox1.Text);
    listBox1.Items.Add(textBox2.Text);
    listBox1.Items.Add(textBox3.Text);
    listBox1.Items.Add(textBox4.Text);
}

private void listBox1_SelectedIndexChanged(object sender, EventArgs e)
{
    /*listBox1.Items.Add(textBox1.Text);
    listBox1.Items.Add(textBox2.Text);
    listBox1.Items.Add(textBox3.Text);
    listBox1.Items.Add(textBox4.Text);*/
}

If this is not it, you have to give more information about what should happen.