If I understand correctly, you have create a report display all row in one page. You want each row displayed in a single page.
In SQL Server Reporting Services (SSRS), we can add a page break to rectangles, data regions, or groups within data regions to control the amount of information on each page.
You can refer to the steps below:
1. Click the tablix, right-click “(Details)” in the Row Groups dialog box. Select Group Properties.
2. Click “Page Breaks” in the left pane. Select “Between each instance of a group” and “Also at the end of a group”.
You can refer to the screenshot below: