DataGrid MultiSelect

[Rob]

I am attempting to update a number of combo boxes on a form based on the users selection in the data grid
I want the user to be able to select multiple items

Using a separate button I can loop through and get a list of the rows selected like this

CurrencyManager cm = (CurrencyManage r)this.BindingC ontext[dg.DataSource, dg.DataMember];
DataView dv = (DataView)cm.Li st;
for(int i = 0; i < dv.Count; ++i)
{
if(dg.IsSelecte d(i))
}

However trying to do this from an event when the user selects a row in the DataGrid has proven difficult
I have tried to subclass the DataGrid and create an event that fires when the row is changed, but the IsSelected property is not updated for the appropriate rows until after all the events have fired

I have tried OnPaint, ListManager_Pos itionChanged, ListManager_Cur rentChanged, OnCurrentCellCh anged etc...

Does anyone know how to do this without using a separate control??? Or perhaps an alternative solution to updating the other controls on the form without forcing the user to do anything beyond selecting the rows he/she desires