How to create data driven test using Web Performance test?

Once developed web performance test with CS file, In CS file calling test do below settings for data driven test.
Click on Test Menu 
Click on Edit Test Testings and click on Local (local.testsettings) menu item in sub menu items -->
In Test settings window select Web Test and displayed Web Test pane turn on “One run per data source row” radio button 
Click on Save As button and click on save button in save as window.

Then script will execute based on how many rows of data is exist in the data source file (CSV).