Problem with Patch in OnSuccess of SP Custom Form

[Assurity]

Hi,

I am trying to use the Patch command to update the current record in the SharePointForm.OnSuccess action. If I do something like this : 

Patch(Expenses, SharePointForm1.LastSubmit,{
FullName:CurrentUser,
VAT:"TEST1",
Nominal: "TEST2"
});
ResetForm(SharePointForm1); 
RequestHide()

It works fine. However If I update the VAT, and Nominal fields to get values from a list box, such as :

Patch(Expenses, SharePointForm1.LastSubmit,{
FullName:CurrentUser,
VAT:ListBoxNominal.Selected.Vatcode,
Nominal: ListBoxNominal.Selected.Code
});
ResetForm(SharePointForm1); 
RequestHide()

This does not work and the VAT and Nominal fields are not updated. If I go back and edit the record and save it again, the values are then updated!?

I have also done a test and changed the OnSuccess to just output the results of the ListBoxNominal and it is outputting the expected value :

Notify("Result = " & ListBoxNominal.Selected.Code,NotificationType.Information);

Can someone help me to get the Patch statement working using the results from the selected item in the list box ?

[Assurity · Accepted solution]

Well after searching some more on these forums I found my answer :

If I add the following line before the Patch command the update then works :

Refresh(Expenses);