I have a Maintenence Form with two tabs, On the first tab I show the Parent Record and on the second tab I have  a List View , where I want to show the children. I want the children refreshed each tme the parent changes. I have both Parent and Child business Objects set up.

I have the method (on the ListView)  set as FillByparentPrimaryKey(System.Int32) and PopulateOnFormLoad set to manual.

I reckon I need to call the FillByParentPrimaryKey() somewhere to refresh the children and am wondering where is the best place to put this code. I could be refreshing ,either using the navigation buttons, Adding a new Parent,Deleting a parent or  doing a search etc.

Also, is just calling FillByParentPrimaryKey() sufficient or do I also need to call any Refresh() code

Hi Edhy. Many thanks for your detailed response.

I have input code as suggested bu am getting a message on the Requery code;

Dynamically populating the ListView Failed. Could not create and fill the business object of type.....

When I look a t the detail, there seems to be some issue converting a string to a GUID

-------------------  My Code is as follows ------------------------------------------------------------------

private void listView1_ListPopulating(MicroFour.StrataFrame.UI.ListPopulatingEventArgs e)

        {

                 if (this.smA_BO1.Count > 0)

            { e.Parameters[0].Value = this.smA_BO1.PrimaryKeyField.ToString(); }

            else

            { e.Parameters[0].Value = "zahaha"; }

         }

 

private void smA_BO1_Navigated(MicroFour.StrataFrame.Business.NavigatedEventArgs e)

{ this.listView1.Requery();}

-------------------------------------------------------------------------------------

In the Method To Execute.. I am not clear on what GUID refers to. My primary key happens to be a Char(10) field

Am I ciorrect in using a FillByParentPrimaryKey(Guid) here .... not sure what a GUID is ??

Also in code above, not sure if This.SmaBO1.PrimaryKeyField.Tostring() is correct ?

 

The problem is the PrimaryKeyField is the name of the primary key field...not the value. Use the PrimaryKeyFieldValue property or use bo.CurrentRow(bo.PrimaryKeyField). The later will definitely need a conversion to work, not sure on the former...never noticed that property before! Likely it is strong typed though.