I am trying to mimic the DataGridSelectionAdapter from the Sivlerlight toolkit samples (Autocomplete box) but ISelectionAdapter is not found. I have refs to System.Windows.Controls and the System.Windows.Controls.Toolkit (C:\Program Files\Microsoft SDKs\Silverlight\v3.0\Toolkit\Nov09\Bin\System.Windows.Controls.Toolkit.dll).
Anyone know which assembly this is in> MS says it is in S.W.Controls, yet it appears not ( reflector cant seem to locate that interface there either).
Thanks