Combobox and "autocompletion"

[TMattC]

I have bound a BindingList<Produkt> to a ComboBox. When the user writes some text into the combobox, it will remove (filter out) all the entries that doesnt match what the user has entered, and then open the list showing the rest for the user to select one. The idea is that the more the user writes, the fewer options will be listed. The binding and filtering part works fine, but the problem is that when the user writes the first letter, the list opens up and autocompletes (in the text field) with the first entry of the list. Is there a way to turn this auto-completion off? I want the user to have the opportunity to keep writing OR to actively select an entry from the list.

    public void Init(BindingList \_produktLst)
    {
        produktLst = \_produktLst;
        namnCbx.DataSource = produktLst;
        namnCbx.DisplayMember = "Namn";
        namnCbx.ValueMember = "Namn";
    }

    private void namnCbx\_TextChanged(object sender, EventArgs e)
    {
        RunFilter();
    }

    private void RunFilter()
    {
        BindingList filteredLst;

        if (namnCbx.Text.Length == 0) // Om fältet är tomt
        {
            namnCbx.DataSource = produktLst;
        }
        else // Om det finns kriterier att filtrera på
        {
            filteredLst = new BindingList(produktLst.Where(delegate(Produkt p)
                {
                    if (!p.Namn.Contains(namnCbx.Text))
                        return false;
                    else
                        return true;
                }
            ).ToList());

            namnCbx.DataSource = filteredLst;
            if(namnCbx.Focused)
                namnCbx.DroppedDown = true;
        }
    }
    }

[TMattC]

I think this question might boil down to: Can you open the list of a combobox without having one of the list entries selected, ie having something entirely different in the input field?

[Simon_Whale]

Have you thought about using the AutoComplete property on the combobox and set it to suggest?

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[TMattC]

Well, my idea was to not use any autocomplete, but I found this article Auto Complete ComboBox[^] where he is using it, and it works really well, just a slightly different approach. So five starts on that one. :-D