If you wish to do it in the client side, my suggestion is to use the WebGrid initialize event handler to set the row position property of each row to the RowNumber cell. Here is the snippet for such scenario, in this case the RownNumber cell is the first column in the WebGrid:

function WebGrid1_OnInitialize() {
    var grid = ISGetObject("WebGrid1");

    var rows = grid.RootTable.GetElement(WG40.BODY, WG40.HTMLTABLE).getElementsByTagName("tr");
    
    for (var i = 0; i < rows.length; i++) {

        rows[i].getElementsByTagName("td")[1].innerText = grid.GetRowByElement(rows[i]).Position + 1;
    }
}

On the other hand, the method will be similar for server side as well, however you will need to use the InitializeRow event handler:

protected void WebGrid1_InitializeRow(object sender, ISNet.WebUI.WebGrid.RowEventArgs e)
{
    if (e.Row.Type == ISNet.WebUI.WebGrid.RowType.Record)
    {
        e.Row.Cells[0].Value = e.Row.Position + 1;
        e.Row.Cells[0].Text = (e.Row.Position + 1).ToString();
    }
}

I spoke to soon.  I forgot to disable my trigger and it was supplying the data.   The InitializeRow event is writing the row number to the grid, but not setting the bind variable for the Insert, thus it fails with a cannot insert null.

Here is my datasource:

</SqlDataSource>

Is there another way to accomplish this?  Should my parameter name be assigned differently?

Thanks,

Conrad