Add a command button on a sub grid to open a new form populated with values

Using Power Fx with modern commanding in a model-driven app provides a powerful and straightforward approach to creating and managing custom commands without delving into complex JavaScript. Power Fx allows you to write expressions that execute when a command is triggered, similar to formula expressions in Excel. This integration is part of Microsoft’s drive to unify the formula language across its Power Platform. Here’s how to use Power Fx for modern commanding in a model-driven app:

Step 1: Open Your App in Power Apps Studio

1. Log into Power Apps: Navigate to the Power Apps home page and sign in.

2. Choose Your Environment: Ensure that you are working within the correct environment.

3. Open Your Model-Driven App: Select the model-driven app you want to modify.