listbox example

Question

How can I add a values to a listbox from a textbox each time a space is pressed (split textbox value on space)

Answer 1

In a nutshell, you'll need a TextChanged event handler on the textbox. You can then take the text, use String.Split() to separate it into individual items, and add them to your listbox.

Answer 2

Regarding the edit and it is really what you mean, let's give it a try. Add a new Listener to the TextBox for KeyPress, then try this code:

private void YourTextBox_KeyPress(object sender, KeyPressEventArgs e)
{
    if (e.KeyChar.Equals(' '))
    {
        String[] items = Regex.Split(YourListBox.Text, @"/\w/");
        YourListBox.Items.Clear();
        foreach (String item in items)
             YourListBox.Items.Add(item);
    }
}

This is very quick and dirty, as it will iterate over the whole text each time you press space, but it should do the trick.