Hello all, I have a custom entity where I added a subgrid in main form, and I have also added the custom button on the ribbon. My requirement is My custom button should be shown visible only there are records in the subgrids.??? Anyone know how can I achieve this? First I will apply the FormStateRule so custom button is available only for existing form because once I saved the form then only I can add data in subgrid, and my requirement is the custom button should only be shown when there is data in subgrid.
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