SSRS: How to remove cached report data in Visual Studio

Steps

Go to Tools > External Tools...

Add a new tool with the following settings:

• Title: Clear Report Data Cache
• Command: "%WinDir%\System32\cmd.exe" 
• Arguments: /C DEL /S /Q "$(SolutionDir)\*.rdl.data"
• Check options: Use Output window & Close on exit

Now whenever you want to delete your report data cache, just go to Tools > Clear Report Data Cache.

References:

• http://jasonfaulkner.com/ClearDataCacheBIS.aspx
• https://code.msdn.microsoft.com/SQL-Server-Reporting-SSRS-50c4d06b