>Kevin,
>
>The error in RowDatabound is at the first line in the code after I check if it's a DataRow. The Row Index is zero and the EntityList.Count is 4. That's why I don't understand the RowNotInTable error.
>

>
>    protected void gvLots_RowDataBound(object sender, GridViewRowEventArgs e)
>    {
>        mmGridView gv = (mmGridView)sender;
>        if (e.Row.RowType == DataControlRowType.DataRow)
>        {
>            int count = (int)(LotLineItems.EntityList[e.Row.RowIndex].LCount == null ? 0 : LotLineItems.EntityList[e.Row.RowIndex].LCount);
>

I recommend adding a line of code (before the line that blows up) that retrieves the business object's underlying DataTable and set a breakpoint that allows you to examine its contents.

Best Regards,