asp.net listbox vs winforms listbox

The following code is for winforms:

public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
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        private void Form1_Load(object sender, EventArgs e)
        {
            listBox1.DataSource = Fruit.Get();
            listBox1.DisplayMember = "Name";
            listBox1.ValueMember = "ID";
        }

        private void listBox1_Click(object sender, EventArgs e)
        {
            object li = listBox1.SelectedItem;

            Fruit fr = (Fruit) li;

            label1.Text = fr.Name;
        }
    }

Is it possible to use the same technique in asp.net?

If no, then what is the alternative?

No, it's not possible in ASP.NET.

As an alternative, you can store your fruit items in Dictionary<string, Fruit> collection and you can get your selected Fruit like that :

// Assume that your datasource is Dictionary<string, Fruit> myFruits
Fruit fr = myFruits[listBox1.SelectedValue];

I don't think you can do it exactly like that, as I'm quite rusty in winforms, but here's how i'd try it in asp.net

1.) Bind your listbox in Page_PreRender()

listBox1.DataSource = Fruit.Get();
listBox1.DataTextField = "Name";
listBox1.DataValueField = "ID";
listBox1.DataBind();

2.) I'm not sure what the equivalent "OnClick" event would be, but you could hook into the SelectedIndexChanged event like so (triggered by another button):

var li = listBox1.SelectedItem;
label1.Text = li.Text;