TypeAhead Feature TextBox Control Windows C#

Question

I am using typeahead feature of TextBox .. all I want is that the Typeahead should show all the Items available in AutoCompleteStringCollection.

Currently its suggesting me those string whcih starts with the characters that I type. What I need is the characters that I type can exist anywhere in the string not only at beginning.

On TextChange Event What I am doing to get this is making a temp AutoCompleteStringCollection and associating it with the textBox.

Now all I need to do is just display that every time. any Ideas?

Answer 1

The Winform controls with AutoComplete support are using IE's AutoComplete APIs, which does not support ACO_NOPREFIXFILTERING until Windows Vista. Since WinForm needs to support earlier systems, ACO_NOPREFIXFILTERING is not supported in .Net.

If you want to use this feature when it is available, you can skip Windows Form's AutoComplete support and call the API directly.