I've put in a form 3 BO's, the firs one is the grand child and the one who appneds the data to the table, ther second is a FK of this one and the third is a FK of the second one.

I've put two CB, the first is the grand parent FK, this CB has to pass a value to the other CB filtering this one's data and showing only data filtered by the other  CB.

For example I select a Customer Grand Parent CB, then an order (parent CB) and I fill in a form the data of one (and only one) item.

I tried a lot of examples I saw at the forum but with no success. My question is, I now how to do it manually, but I think there must be a more powerfull way via the framework.

I've bounded my first CB to a BO using the populationdatasourcesettings. This one works fine.

Then Ive bounded the second one using the method copydatafrom.

Ive put this code in the ListPopulating method

    Private Sub cboEstablecimientos_ListPopulating(ByVal e As MicroFour.StrataFrame.UI.ListPopulatingEventArgs) Handles cboEstablecimientos.ListPopulating

        e.Parameters(0).Value = Me.BoEmpresa1
        e.Parameters(1).Value = MicroFour.StrataFrame.Business.BusinessCloneDataType.ClearAndFillFromDefaultView
    End Sub

    Private Sub BoEmpresa1_Navigated(ByVal e As MicroFour.StrataFrame.Business.NavigatedEventArgs) Handles BoEmpresa1.Navigated
        Me.cboEstablecimientos.Requery()

    End Sub

But when I debug it it never reaches this code.

I must have some wrong parameter but I don't know which is.

Help please!!!

OK, the example is very fine, but, what about using OrdersBO.FillByParentPrimaryKey(System.Int32) instead of  OrdersBO.FillByCustomerPK(System.Int32). Why did you create your own procedure existing one.

Hi Felix,



This sample have been used for many other test. I do not recall any specifics other than it will show you how to get the comboboxes to behave the way you needed it to.



Hope this gave you the jump you need to move on.

Edhy Rijo