Development Tips

UpdatePropagation Property

Sets a value that specifies what happens when a main page with a subpage is updated.

The UpdatePropagation property is available on part controls and has two options; Subpage and Both.

If UpdatePropagation is set to Subpage, an update action will update the subpage only.

If UpdatePropagation is set to Both, an update action will update both the main page and the subpage.

This is useful if a value on the subpage changes, and you want a main page total to be refreshed automatically.

Use the UpdatePropagation property to update a main page total, when the amount on the subpage lines is updated. Add a CurrPage.UPDATE(); call, for example, in the OnValidate trigger on the subpage to have the UpdatePropagation property take effect.

Let’s do it practically how it works:

I am taking Sales Order for demo of above property.

Let’s start with adding a field in Sales Header Table
UpdatePropagation-1

I have added Total Line Amount as Flow field to Sum Line Amount from Lines.

Next I will add this field to Sales Order Page.
UpdatePropagation-2

If we run now and make changes in Lines the Total Line amount will not update until we refresh the Page. To enable auto refresh we will be required to add Update Propagation Property of the Subpage to Both.
UpdatePropagation-3

After doing this if I make any changes which changes the Line Amount for the lines, The Total Line Amount in Header will get updated automatically, we will not require to refresh the page.
UpdatePropagation-4

We are done, so simple.