I am trying to populate collection data into textinputs, dropdown controls, and radial controls that is in a gallery to whatever the user check in a checkbox from another screen. The data is first collected from these same controls which is stored in a collection. It then goes to a display screen where it allows users to check if the data they entered is what they want to store. There is a checkbox for each record, and if checked, a button to allow them to modify. The modify button should bring them back to the gallery that contains the controls, and populate the data for them to modify. I couldn't find the formula to do that from the modify onselect property. Thanks.
Thanks for your response and sorry for taking long to reply. Initially I did use an edit form, however I was not able to find and connect a collection as a data source. I have read in forums that powerapps does not allow collections as datasource, especially from an edit form. That was the reason why i just added controls manually into a normal screen, that way i can connect to a collection. Unless there is another way to connect to a collection from an edit form. If so please let me know. Thanks.