Update Sub-form (Sub-Page) from Main Page to apply Filters. - CloudFronts

Update Sub-form (Sub-Page) from Main Page to apply Filters.

Problem Statement:

I have a requirement where I want to update the Subform(Part page) from the Main page, this Subpage(Subform) is linked to the Main page by SubpageLink Property. The Subpage is a List page and I want to filter this list by a field from Main Page.


  • VS Code
  • AL Language Extension
  • Microsoft Dynamics NAV /  Business Central


To solve the above Problem statement we have to make use of the Currpage.Update() function which shall update the Subpage.

As you can see in the below window a function is created Vendorfilter() on Subpage with the “vendor” parameter, in this function filter is added for the vendor on the part page and then CurrPage.Update() is used. This function will update the Subpage with the vendor.

Now, call this function on “OnValidate” trigger of the Main page field, here we have “Vendor” field on Main Page.



The calling of Function is as follows:


In this example we have


Conclusion: Thus we can achieve updating a Subform from a Main Page.

Hope this helps!

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