An organization uses Dynamics 365 Sales. You plan to add a custom button to the app ribbon. You need to ensure that the button displays only when conditions specified by business rules are met. Which two code segments can you use? Each correct answer presents a complete solution. NOTE: Each correct selection is worth one point.

To dynamically update the visibility of a command bar (ribbon) button based on form data changes, you must programmatically trigger a refresh of the ribbon. This forces the re-evaluation of the button's display and enable rules. The formContext.ui.refreshRibbon method is the designated client API function for this purpose. The method can be called with an optional boolean parameter refreshAll. Therefore, both formContext.ui.refreshRibbon() and formContext.ui.refreshRibbon(refreshAll) are valid and correct ways to refresh the main form's command bar, fulfilling the requirement.

A. gridContext.refresh(); refreshes the data within a subgrid or view grid, not the main form's command bar.

C. formContext.data.refresh(save).then(successCallback, errorCallback); reloads the record's data from the server but does not directly trigger a UI refresh of the command bar.

E. formContext.getControl(arg).refresh(); is used to refresh a specific control on the form, typically a subgrid, not the entire command bar.

1. Microsoft Learn (Official Documentation): formContext.ui.refreshRibbon (Client API reference). This document explicitly states, "Causes the ribbon to re-evaluate data that controls what is displayed in it." It also provides the syntax formContext.ui.refreshRibbon(refreshAll), where refreshAll is an optional boolean. This confirms that calling the method with or without the parameter is valid.

Source: https://learn.microsoft.com/en-us/power-apps/developer/model-driven-apps/clientapi/reference/formcontext-ui/refreshribbon

2. Microsoft Learn (Official Documentation): refresh (Client API reference for grid controls). This document describes the refresh method for grid controls (gridContext), stating its function is to "Refresh the subgrid." This confirms that gridContext.refresh() is incorrect for the main ribbon.

Source: https://learn.microsoft.com/en-us/power-apps/developer/model-driven-apps/clientapi/reference/grids/gridcontrol/refresh

3. Microsoft Learn (Official Documentation): formContext.data.refresh (Client API reference). This document explains that the method "Asynchronously refreshes data on the form," without mentioning any direct effect on the ribbon's UI evaluation.

Source: https://learn.microsoft.com/en-us/power-apps/developer/model-driven-apps/clientapi/reference/formcontext-data/refresh