If you're talking about the Windows Grid, there's definitely a DoubleClickCell event on the UltraWinGrid I have, v7.2. Infragistics.Win.UltraWinGrid.UltraGrid grid = new Infragistics.Win.UltraWinGrid.UltraGrid(); grid.DoubleClickCell += new Infragistics.Win.UltraWinGrid.DoubleClickCellEventHandler(OnGrid_DoubleClickCell);

Hi,

I suppose it's possible there's a bug in the version of the controls you are using. I am using the latest service release, of course.

How to get the latest service release - Infragistics Community

I'm not sure what you mean by "empty Row edit template". The first time I drop it down, it's empty, of course, because there's only one row in the grid and it's the AddNewRow, so there's no data in it. But I can type into the RowEditTemplate and click okay, and it adds the row to the grid correctly. Then if I double-click on the row selector for that new row, I see the RowEditTemplate with the data in it. I can edit it and everything works as I expect.

Sorry... I think I was confused about what you were doing. I've been double-click on the row and that's why it worked for me. Turns out I had the wrong method for showing the RET. Try this:

    Private Sub UltraGrid2_KeyUp(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles UltraGrid2.KeyUp
        If e.KeyCode = Keys.F7 Then
            If (Not Me.UltraGrid2.ActiveRow Is Nothing) Then
                Me.UltraGrid2.ActiveRow.ShowEditTemplate()
            End If
        End If
    End Sub

That worked. Thank you very much. 
Can you divert you to another post that I made.

http://ko.infragistics.com/community/forums/p/60758/377334.aspx#377334

Regards