The OnSelect trigger is a common trigger used in canvas apps, which are custom applications built using Microsoft Power Apps.
This trigger fires when a user clicks or selects a control, such as a button, a dropdown, or a gallery item, in a canvas app.
The OnSelect trigger allows you to specify actions that should be performed when a user selects a control in your app. For example, you might use the OnSelect trigger to navigate to a different screen, to update a data source, or to show or hide certain controls on the current screen.
To use the OnSelect trigger in a canvas app, you first need to select the control that you want to use it with. Then, in the formula bar, you can enter a formula that defines the actions that should be performed when the control is selected. The formula should start with the name of the control, followed by a period and the OnSelect property.
For example, if you have a button control named “SubmitButton”, you can define the OnSelect trigger for that button by entering the following formula in the formula bar:
SubmitButton.OnSelect = Navigate(‘ConfirmationScreen’, Transition.None)
In this example, the OnSelect trigger for the SubmitButton control navigates the user to a screen named “ConfirmationScreen” without any transition effect.
The OnSelect trigger is a powerful feature that allows you to create highly interactive and customized canvas apps. However, it’s important to use it judiciously and only when necessary, as too many triggers can make your app slow and difficult to maintain.