C# Which Event should I use to display data in a textbox when I select an item in a listbox?

Question

C# Which Event should I use to display data in a textbox when I select an item in a listbox?

I want to select an item in a list box (winforms) and then a textbox near by show some data related to that item but I don't know which event to use. I'll need to be able to click down the list and watch the textbox text update with each click.

Thanks

Answer 1

I think this will help you out.

Answer 2

Sorry, don't know the exact name of the event off the top of my head, but is something like SelectedItemChanged that you are looking for.

Answer 3

SelectedIndexChanged

Answer 4

You will want to handle either SelectedIndexChanged or SelectedValueChanged.

(Note that the SelectedValueChanged MSDN article has an example that sounds like exactly what you are doing.)

Answer 5

Is the SelectedIndexChanged event not working for you?

private void listBox1_SelectedIndexChanged(object sender, EventArgs e) {
    relatedTextbox.Text = listBox1.SelectedItem.ToString();
}

Answer 6

SelectedIndexChanged was what I was looking for, thanks to all.

Answer 7

Assuming you have a form with a TextBox and a ListBox.

    public partial class Form1 : Form
{
    public Form1()
    {
        InitializeComponent();

        this.listBox1.SelectedIndexChanged += new System.EventHandler(this.listBox1_SelectedIndexChanged);
    }

    private void listBox1_SelectedIndexChanged(object sender, EventArgs e)
    {
        textBox1.Text = listBox1.SelectedItem.ToString();
    }
}