[DllImport("shlwapi.dll")]
public static extern Int32 SHAutoComplete(
IntPtr hwndEdit,
AutoCompleteFlags dwFlags
);
Declare Function SHAutoComplete Lib "shlwapi.dll" (ByVal hWndEdit As IntPtr, ByVal dwFlags As AutoCompleteFlags) As Integer
See also GetComboBoxInfo
Please add some!
SHAutoComplete(textBox1.Handle, AutoCompleteFlags.SHACF_FILESYSTEM);
TODO