ListBox items as AutoCompleteCustomSource for a textbox

Question

I have populated some items into a listbox using the datasource property. Now I need to set the AutoCompleteCustomSource for a textBox from the items listed in the listbox. Prec

Answer 1

The AutoCompleteStringCollection takes only string[], so it should be like this:

var cc = new AutoCompleteStringCollection();
cc.AddRange(listBox1.Items.Cast().ToArray());