Thanks. I'll give that a try.

>>If I'm using mmDataGrid to display child records, and I have AddRowsWithDownArrow = true, it doesn't automatically populate the parent foreign key field (as it does when I call NewRow() directly).
>>
>>Should it do this? And if not, where's the best place to hook into for getting this field populated (and any other defaults I might have).
>>
>
>If you set up the DefaultValue for your DataColumn it looks like it honors those. That won't help you if you have a DataRelation between your tables. Here is how to hook into the event that fires when you down arrow in the datagrid. You must be databound to the DefaultView (grid.BindingSourceMember=BizObj.DefaultView)
>

>// hook into new row, do this after you retrieve data
>DataView dv = det.GetCurrentDataSet().Tables["OrderDetail"].DefaultView;
>dv.ListChanged += new ListChangedEventHandler(det_ListChanged);
>

>Then in the event handler
>

>private void det_ListChanged(Object sender, ListChangedEventArgs e)
>{
>	if (e.ListChangedType == ListChangedType.ItemAdded)
>	{
>		DataRowView drv = ((DataView)sender)[e.NewIndex];
>		if (drv.IsNew)
>		{ // Add any defaults here
>			drv["iqty"] = 1;
>			//You would have to do a table lookup here
>			drv["cdesc"] = "ItemDescription";
>		}
>	}
>}
>