Step 1. Open the Reporting Services Configuration Manager. Go to the Report Manager URL.
Step 2. Press the “New Folder” button on the opened page.
Step 3. Set Folder Name and click the “OK” button.
Step 4. Click the folder to open its content.
Step 5. Click the “Upload File” button.
Step 6. Click the “Browse…” button to select .rdl file for uploading.
Step 7. In order to display the loaded report in the viewer, write the code, given below, in the reportViewer_Loaded handler:
reportViewer.ReportName = "/TestFolder/New Item";