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protected void Page_Load(object sender, EventArgs e)
    {
        Label2.Text = ListBox1.SelectedIndex.ToString();

    }

if label2.text is written in page load then its output is -1

protected void ListBox1_SelectedIndexChanged(object sender, EventArgs e)
    {
        Label2.Text = ListBox1.SelectedIndex.ToString();
    }

if i write label2.text in selected index change it returns nothing. please help me out.

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    The first case is normal as a value of -1 is returned if no item is selected... Commented Jul 3, 2012 at 8:48

1 Answer 1

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Is autopostback set to true on the listbox?

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